Vulnerabilities (CVE)

Filtered by vendor Fedoraproject Subscribe
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2020-2774 3 Fedoraproject, Netapp, Oracle 6 Fedora, Active Iq Unified Manager, Oncommand Insight and 3 more 2021-12-30 4.0 MEDIUM 4.9 MEDIUM
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 8.0.18 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2020-2770 3 Fedoraproject, Netapp, Oracle 6 Fedora, Active Iq Unified Manager, Oncommand Insight and 3 more 2021-12-30 4.0 MEDIUM 4.9 MEDIUM
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Logging). Supported versions that are affected are 8.0.18 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2020-2765 4 Canonical, Fedoraproject, Netapp and 1 more 7 Ubuntu Linux, Fedora, Active Iq Unified Manager and 4 more 2021-12-30 4.0 MEDIUM 4.9 MEDIUM
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 5.7.29 and prior and 8.0.19 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2020-2763 4 Canonical, Fedoraproject, Netapp and 1 more 7 Ubuntu Linux, Fedora, Active Iq Unified Manager and 4 more 2021-12-30 4.0 MEDIUM 4.9 MEDIUM
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Replication). Supported versions that are affected are 5.6.47 and prior, 5.7.29 and prior and 8.0.19 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2020-2762 4 Canonical, Fedoraproject, Netapp and 1 more 7 Ubuntu Linux, Fedora, Active Iq Unified Manager and 4 more 2021-12-30 4.0 MEDIUM 4.9 MEDIUM
Vulnerability in the MySQL Server product of Oracle MySQL (component: InnoDB). Supported versions that are affected are 8.0.19 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2020-2761 3 Fedoraproject, Netapp, Oracle 6 Fedora, Active Iq Unified Manager, Oncommand Insight and 3 more 2021-12-30 4.0 MEDIUM 4.9 MEDIUM
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Privileges). Supported versions that are affected are 8.0.18 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2020-2759 4 Canonical, Fedoraproject, Netapp and 1 more 7 Ubuntu Linux, Fedora, Active Iq Unified Manager and 4 more 2021-12-30 4.0 MEDIUM 4.9 MEDIUM
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Replication). Supported versions that are affected are 8.0.19 and prior. Easily exploitable vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2019-9210 4 Advancemame, Canonical, Debian and 1 more 4 Advancecomp, Ubuntu Linux, Debian Linux and 1 more 2021-12-30 6.8 MEDIUM 7.8 HIGH
In AdvanceCOMP 2.1, png_compress in pngex.cc in advpng has an integer overflow upon encountering an invalid PNG size, which results in an attempted memcpy to write into a buffer that is too small. (There is also a heap-based buffer over-read.)
CVE-2019-15145 5 Canonical, Debian, Djvulibre Project and 2 more 5 Ubuntu Linux, Debian Linux, Djvulibre and 2 more 2021-12-28 4.3 MEDIUM 5.5 MEDIUM
DjVuLibre 3.5.27 allows attackers to cause a denial-of-service attack (application crash via an out-of-bounds read) by crafting a corrupted JB2 image file that is mishandled in JB2Dict::JB2Codec::get_direct_context in libdjvu/JB2Image.h because of a missing zero-bytes check in libdjvu/GBitmap.h.
CVE-2019-18804 5 Canonical, Debian, Djvulibre Project and 2 more 5 Ubuntu Linux, Debian Linux, Djvulibre and 2 more 2021-12-28 5.0 MEDIUM 7.5 HIGH
DjVuLibre 3.5.27 has a NULL pointer dereference in the function DJVU::filter_fv at IW44EncodeCodec.cpp.
CVE-2019-15144 5 Canonical, Debian, Djvulibre Project and 2 more 5 Ubuntu Linux, Debian Linux, Djvulibre and 2 more 2021-12-28 4.3 MEDIUM 5.5 MEDIUM
In DjVuLibre 3.5.27, the sorting functionality (aka GArrayTemplate<TYPE>::sort) allows attackers to cause a denial-of-service (application crash due to an Uncontrolled Recursion) by crafting a PBM image file that is mishandled in libdjvu/GContainer.h.
CVE-2019-15143 5 Canonical, Debian, Djvulibre Project and 2 more 5 Ubuntu Linux, Debian Linux, Djvulibre and 2 more 2021-12-28 4.3 MEDIUM 5.5 MEDIUM
In DjVuLibre 3.5.27, the bitmap reader component allows attackers to cause a denial-of-service error (resource exhaustion caused by a GBitmap::read_rle_raw infinite loop) by crafting a corrupted image file, related to libdjvu/DjVmDir.cpp and libdjvu/GBitmap.cpp.
CVE-2019-15142 5 Canonical, Debian, Djvulibre Project and 2 more 5 Ubuntu Linux, Debian Linux, Djvulibre and 2 more 2021-12-28 4.3 MEDIUM 5.5 MEDIUM
In DjVuLibre 3.5.27, DjVmDir.cpp in the DJVU reader component allows attackers to cause a denial-of-service (application crash in GStringRep::strdup in libdjvu/GString.cpp caused by a heap-based buffer over-read) by crafting a DJVU file.
CVE-2020-9359 3 Debian, Fedoraproject, Kde 3 Debian Linux, Fedora, Okular 2021-12-27 6.8 MEDIUM 5.3 MEDIUM
KDE Okular before 1.10.0 allows code execution via an action link in a PDF document.
CVE-2019-11454 4 Canonical, Debian, Fedoraproject and 1 more 4 Ubuntu Linux, Debian Linux, Fedora and 1 more 2021-12-27 4.3 MEDIUM 6.1 MEDIUM
Persistent cross-site scripting (XSS) in http/cervlet.c in Tildeslash Monit before 5.25.3 allows a remote unauthenticated attacker to introduce arbitrary JavaScript via manipulation of an unsanitized user field of the Authorization header for HTTP Basic Authentication, which is mishandled during an _viewlog operation.
CVE-2021-39929 3 Debian, Fedoraproject, Wireshark 3 Debian Linux, Fedora, Wireshark 2021-12-26 5.0 MEDIUM 7.5 HIGH
Uncontrolled Recursion in the Bluetooth DHT dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
CVE-2021-39921 2 Fedoraproject, Wireshark 2 Fedora, Wireshark 2021-12-26 5.0 MEDIUM 7.5 HIGH
NULL pointer exception in the Modbus dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
CVE-2021-39922 3 Debian, Fedoraproject, Wireshark 3 Debian Linux, Fedora, Wireshark 2021-12-26 5.0 MEDIUM 7.5 HIGH
Buffer overflow in the C12.22 dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
CVE-2021-39928 2 Fedoraproject, Wireshark 2 Fedora, Wireshark 2021-12-26 5.0 MEDIUM 7.5 HIGH
NULL pointer exception in the IEEE 802.11 dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
CVE-2021-39924 2 Fedoraproject, Wireshark 2 Fedora, Wireshark 2021-12-26 5.0 MEDIUM 7.5 HIGH
Large loop in the Bluetooth DHT dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
CVE-2021-39925 2 Fedoraproject, Wireshark 2 Fedora, Wireshark 2021-12-26 5.0 MEDIUM 7.5 HIGH
Buffer overflow in the Bluetooth SDP dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file
CVE-2021-22207 3 Fedoraproject, Oracle, Wireshark 3 Fedora, Zfs Storage Appliance Kit, Wireshark 2021-12-26 5.0 MEDIUM 6.5 MEDIUM
Excessive memory consumption in MS-WSP dissector in Wireshark 3.4.0 to 3.4.4 and 3.2.0 to 3.2.12 allows denial of service via packet injection or crafted capture file
CVE-2021-41611 2 Fedoraproject, Squid-cache 2 Fedora, Squid 2021-12-23 5.0 MEDIUM 7.5 HIGH
An issue was discovered in Squid 5.0.6 through 5.1.x before 5.2. When validating an origin server or peer certificate, Squid may incorrectly classify certain certificates as trusted. This problem allows a remote server to obtain security trust well improperly. This indication of trust may be passed along to clients, allowing access to unsafe or hijacked services.
CVE-2021-42373 2 Busybox, Fedoraproject 2 Busybox, Fedora 2021-12-23 2.1 LOW 5.5 MEDIUM
A NULL pointer dereference in Busybox's man applet leads to denial of service when a section name is supplied but no page argument is given
CVE-2021-42375 2 Busybox, Fedoraproject 2 Busybox, Fedora 2021-12-23 1.9 LOW 5.5 MEDIUM
An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under rare conditions of filtered command input.
CVE-2021-42377 2 Busybox, Fedoraproject 2 Busybox, Fedora 2021-12-23 6.8 MEDIUM 9.8 CRITICAL
An attacker-controlled pointer free in Busybox's hush applet leads to denial of service and possible code execution when processing a crafted shell command, due to the shell mishandling the &&& string. This may be used for remote code execution under rare conditions of filtered command input.
CVE-2021-42376 2 Busybox, Fedoraproject 2 Busybox, Fedora 2021-12-23 1.9 LOW 5.5 MEDIUM
A NULL pointer dereference in Busybox's hush applet leads to denial of service when processing a crafted shell command, due to missing validation after a \x03 delimiter character. This may be used for DoS under very rare conditions of filtered command input.
CVE-2021-42374 2 Busybox, Fedoraproject 2 Busybox, Fedora 2021-12-23 3.3 LOW 5.3 MEDIUM
An out-of-bounds heap read in Busybox's unlzma applet leads to information leak and denial of service when crafted LZMA-compressed input is decompressed. This can be triggered by any applet/format that
CVE-2021-3756 2 Fedoraproject, Symonics 2 Fedora, Libmysofa 2021-12-22 7.5 HIGH 9.8 CRITICAL
libmysofa is vulnerable to Heap-based Buffer Overflow
CVE-2021-39216 2 Bytecodealliance, Fedoraproject 2 Wasmtime, Fedora 2021-12-21 3.3 LOW 6.3 MEDIUM
Wasmtime is an open source runtime for WebAssembly & WASI. In Wasmtime from version 0.19.0 and before version 0.30.0 there was a use-after-free bug when passing `externref`s from the host to guest Wasm content. To trigger the bug, you have to explicitly pass multiple `externref`s from the host to a Wasm instance at the same time, either by passing multiple `externref`s as arguments from host code to a Wasm function, or returning multiple `externref`s to Wasm from a multi-value return function defined in the host. If you do not have host code that matches one of these shapes, then you are not impacted. If Wasmtime's `VMExternRefActivationsTable` became filled to capacity after passing the first `externref` in, then passing in the second `externref` could trigger a garbage collection. However the first `externref` is not rooted until we pass control to Wasm, and therefore could be reclaimed by the collector if nothing else was holding a reference to it or otherwise keeping it alive. Then, when control was passed to Wasm after the garbage collection, Wasm could use the first `externref`, which at this point has already been freed. We have reason to believe that the effective impact of this bug is relatively small because usage of `externref` is currently quite rare. The bug has been fixed, and users should upgrade to Wasmtime 0.30.0. If you cannot upgrade Wasmtime yet, you can avoid the bug by disabling reference types support in Wasmtime by passing `false` to `wasmtime::Config::wasm_reference_types`.
CVE-2021-39163 2 Fedoraproject, Matrix 2 Fedora, Synapse 2021-12-21 3.5 LOW 3.1 LOW
Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the name, avatar, topic and number of members of a room if they know the ID of the room. This vulnerability is limited to homeservers where the vulnerable homeserver is in the room and untrusted users are permitted to create groups (communities). By default, only homeserver administrators can create groups. However, homeserver administrators can already access this information in the database or using the admin API. As a result, only homeservers where the configuration setting `enable_group_creation` has been set to `true` are impacted. Server administrators should upgrade to 1.41.1 or higher to patch the vulnerability. There are two potential workarounds. Server administrators can set `enable_group_creation` to `false` in their homeserver configuration (this is the default value) to prevent creation of groups by non-administrators. Administrators that are using a reverse proxy could, with partial loss of group functionality, block the endpoints `/_matrix/client/r0/groups/{group_id}/rooms` and `/_matrix/client/unstable/groups/{group_id}/rooms`.
CVE-2021-39219 2 Bytecodealliance, Fedoraproject 2 Wasmtime, Fedora 2021-12-21 3.3 LOW 6.3 MEDIUM
Wasmtime is an open source runtime for WebAssembly & WASI. Wasmtime before version 0.30.0 is affected by a type confusion vulnerability. As a Rust library the `wasmtime` crate clearly marks which functions are safe and which are `unsafe`, guaranteeing that if consumers never use `unsafe` then it should not be possible to have memory unsafety issues in their embeddings of Wasmtime. An issue was discovered in the safe API of `Linker::func_*` APIs. These APIs were previously not sound when one `Engine` was used to create the `Linker` and then a different `Engine` was used to create a `Store` and then the `Linker` was used to instantiate a module into that `Store`. Cross-`Engine` usage of functions is not supported in Wasmtime and this can result in type confusion of function pointers, resulting in being able to safely call a function with the wrong type. Triggering this bug requires using at least two `Engine` values in an embedding and then additionally using two different values with a `Linker` (one at the creation time of the `Linker` and another when instantiating a module with the `Linker`). It's expected that usage of more-than-one `Engine` in an embedding is relatively rare since an `Engine` is intended to be a globally shared resource, so the expectation is that the impact of this issue is relatively small. The fix implemented is to change this behavior to `panic!()` in Rust instead of silently allowing it. Using different `Engine` instances with a `Linker` is a programmer bug that `wasmtime` catches at runtime. This bug has been patched and users should upgrade to Wasmtime version 0.30.0. If you cannot upgrade Wasmtime and are using more than one `Engine` in your embedding it's recommended to instead use only one `Engine` for the entire program if possible. An `Engine` is designed to be a globally shared resource that is suitable to have only one for the lifetime of an entire process. If using multiple `Engine`s is required then code should be audited to ensure that `Linker` is only used with one `Engine`.
CVE-2020-10704 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2021-12-20 5.0 MEDIUM 7.5 HIGH
A flaw was found when using samba as an Active Directory Domain Controller. Due to the way samba handles certain requests as an Active Directory Domain Controller LDAP server, an unauthorized user can cause a stack overflow leading to a denial of service. The highest threat from this vulnerability is to system availability. This issue affects all samba versions before 4.10.15, before 4.11.8 and before 4.12.2.
CVE-2020-10684 3 Debian, Fedoraproject, Redhat 5 Debian Linux, Fedora, Ansible and 2 more 2021-12-20 3.6 LOW 7.1 HIGH
A flaw was found in Ansible Engine, all versions 2.7.x, 2.8.x and 2.9.x prior to 2.7.17, 2.8.9 and 2.9.6 respectively, when using ansible_facts as a subkey of itself and promoting it to a variable when inject is enabled, overwriting the ansible_facts after the clean. An attacker could take advantage of this by altering the ansible_facts, such as ansible_hosts, users and any other key data which would lead into privilege escalation or code injection.
CVE-2019-17498 4 Debian, Fedoraproject, Libssh2 and 1 more 4 Debian Linux, Fedora, Libssh2 and 1 more 2021-12-18 5.8 MEDIUM 8.1 HIGH
In libssh2 v1.9.0 and earlier versions, the SSH_MSG_DISCONNECT logic in packet.c has an integer overflow in a bounds check, enabling an attacker to specify an arbitrary (out-of-bounds) offset for a subsequent memory read. A crafted SSH server may be able to disclose sensitive information or cause a denial of service condition on the client system when a user connects to the server.
CVE-2021-40490 4 Debian, Fedoraproject, Linux and 1 more 29 Debian Linux, Fedora, Linux Kernel and 26 more 2021-12-17 4.4 MEDIUM 7.0 HIGH
A race condition was discovered in ext4_write_inline_data_end in fs/ext4/inline.c in the ext4 subsystem in the Linux kernel through 5.13.13.
CVE-2021-39164 2 Fedoraproject, Matrix 2 Fedora, Synapse 2021-12-16 3.5 LOW 3.1 LOW
Matrix is an ecosystem for open federated Instant Messaging and Voice over IP. In versions 1.41.0 and prior, unauthorised users can access the membership (list of members, with their display names) of a room if they know the ID of the room. The vulnerability is limited to rooms with `shared` history visibility. Furthermore, the unauthorised user must be using an account on a vulnerable homeserver that is in the room. Server administrators should upgrade to 1.41.1 or later in order to receive the patch. One workaround is available. Administrators of servers that use a reverse proxy could, with potentially unacceptable loss of functionality, block the endpoints: `/_matrix/client/r0/rooms/{room_id}/members` with `at` query parameter, and `/_matrix/client/unstable/rooms/{room_id}/members` with `at` query parameter.
CVE-2021-28699 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-16 4.9 MEDIUM 5.5 MEDIUM
inadequate grant-v2 status frames array bounds check The v2 grant table interface separates grant attributes from grant status. That is, when operating in this mode, a guest has two tables. As a result, guests also need to be able to retrieve the addresses that the new status tracking table can be accessed through. For 32-bit guests on x86, translation of requests has to occur because the interface structure layouts commonly differ between 32- and 64-bit. The translation of the request to obtain the frame numbers of the grant status table involves translating the resulting array of frame numbers. Since the space used to carry out the translation is limited, the translation layer tells the core function the capacity of the array within translation space. Unfortunately the core function then only enforces array bounds to be below 8 times the specified value, and would write past the available space if enough frame numbers needed storing.
CVE-2021-28698 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-16 4.9 MEDIUM 5.5 MEDIUM
long running loops in grant table handling In order to properly monitor resource use, Xen maintains information on the grant mappings a domain may create to map grants offered by other domains. In the process of carrying out certain actions, Xen would iterate over all such entries, including ones which aren't in use anymore and some which may have been created but never used. If the number of entries for a given domain is large enough, this iterating of the entire table may tie up a CPU for too long, starving other domains or causing issues in the hypervisor itself. Note that a domain may map its own grants, i.e. there is no need for multiple domains to be involved here. A pair of "cooperating" guests may, however, cause the effects to be more severe.
CVE-2021-28706 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-16 7.8 HIGH 8.6 HIGH
guests may exceed their designated memory limit When a guest is permitted to have close to 16TiB of memory, it may be able to issue hypercalls to increase its memory allocation beyond the administrator established limit. This is a result of a calculation done with 32-bit precision, which may overflow. It would then only be the overflowed (and hence small) number which gets compared against the established upper bound.
CVE-2021-44026 3 Debian, Fedoraproject, Roundcube 3 Debian Linux, Fedora, Webmail 2021-12-16 7.5 HIGH 9.8 CRITICAL
Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to a potential SQL injection via search or search_params.
CVE-2021-44025 3 Debian, Fedoraproject, Roundcube 3 Debian Linux, Fedora, Webmail 2021-12-16 4.3 MEDIUM 6.1 MEDIUM
Roundcube before 1.3.17 and 1.4.x before 1.4.12 is prone to XSS in handling an attachment's filename extension when displaying a MIME type warning message.
CVE-2021-39920 2 Fedoraproject, Wireshark 2 Fedora, Wireshark 2021-12-16 5.0 MEDIUM 7.5 HIGH
NULL pointer exception in the IPPUSB dissector in Wireshark 3.4.0 to 3.4.9 allows denial of service via packet injection or crafted capture file
CVE-2021-28702 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-16 4.6 MEDIUM 7.6 HIGH
PCI devices with RMRRs not deassigned correctly Certain PCI devices in a system might be assigned Reserved Memory Regions (specified via Reserved Memory Region Reporting, "RMRR"). These are typically used for platform tasks such as legacy USB emulation. If such a device is passed through to a guest, then on guest shutdown the device is not properly deassigned. The IOMMU configuration for these devices which are not properly deassigned ends up pointing to a freed data structure, including the IO Pagetables. Subsequent DMA or interrupts from the device will have unpredictable behaviour, ranging from IOMMU faults to memory corruption.
CVE-2020-25664 2 Fedoraproject, Imagemagick 2 Fedora, Imagemagick 2021-12-16 5.8 MEDIUM 6.1 MEDIUM
In WriteOnePNGImage() of the PNG coder at coders/png.c, an improper call to AcquireVirtualMemory() and memset() allows for an out-of-bounds write later when PopShortPixel() from MagickCore/quantum-private.h is called. The patch fixes the calls by adding 256 to rowbytes. An attacker who is able to supply a specially crafted image could affect availability with a low impact to data integrity. This flaw affects ImageMagick versions prior to 6.9.10-68 and 7.0.8-68.
CVE-2019-5736 13 Apache, Canonical, D2iq and 10 more 19 Mesos, Ubuntu Linux, Dc\/os and 16 more 2021-12-16 9.3 HIGH 8.6 HIGH
runc through 1.0-rc6, as used in Docker before 18.09.2 and other products, allows attackers to overwrite the host runc binary (and consequently obtain host root access) by leveraging the ability to execute a command as root within one of these types of containers: (1) a new container with an attacker-controlled image, or (2) an existing container, to which the attacker previously had write access, that can be attached with docker exec. This occurs because of file-descriptor mishandling, related to /proc/self/exe.
CVE-2021-43975 2 Fedoraproject, Linux 2 Fedora, Linux Kernel 2021-12-15 4.6 MEDIUM 6.7 MEDIUM
In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allows an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value.
CVE-2021-28707 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-15 6.9 MEDIUM 8.8 HIGH
PoD operations on misaligned GFNs T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] x86 HVM and PVH guests may be started in populate-on-demand (PoD) mode, to provide a way for them to later easily have more memory assigned. Guests are permitted to control certain P2M aspects of individual pages via hypercalls. These hypercalls may act on ranges of pages specified via page orders (resulting in a power-of-2 number of pages). The implementation of some of these hypercalls for PoD does not enforce the base page frame number to be suitably aligned for the specified order, yet some code involved in PoD handling actually makes such an assumption. These operations are XENMEM_decrease_reservation (CVE-2021-28704) and XENMEM_populate_physmap (CVE-2021-28707), the latter usable only by domains controlling the guest, i.e. a de-privileged qemu or a stub domain. (Patch 1, combining the fix to both these two issues.) In addition handling of XENMEM_decrease_reservation can also trigger a host crash when the specified page order is neither 4k nor 2M nor 1G (CVE-2021-28708, patch 2).
CVE-2021-28704 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-15 6.9 MEDIUM 8.8 HIGH
PoD operations on misaligned GFNs T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] x86 HVM and PVH guests may be started in populate-on-demand (PoD) mode, to provide a way for them to later easily have more memory assigned. Guests are permitted to control certain P2M aspects of individual pages via hypercalls. These hypercalls may act on ranges of pages specified via page orders (resulting in a power-of-2 number of pages). The implementation of some of these hypercalls for PoD does not enforce the base page frame number to be suitably aligned for the specified order, yet some code involved in PoD handling actually makes such an assumption. These operations are XENMEM_decrease_reservation (CVE-2021-28704) and XENMEM_populate_physmap (CVE-2021-28707), the latter usable only by domains controlling the guest, i.e. a de-privileged qemu or a stub domain. (Patch 1, combining the fix to both these two issues.) In addition handling of XENMEM_decrease_reservation can also trigger a host crash when the specified page order is neither 4k nor 2M nor 1G (CVE-2021-28708, patch 2).
CVE-2021-28708 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-15 6.9 MEDIUM 8.8 HIGH
PoD operations on misaligned GFNs T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] x86 HVM and PVH guests may be started in populate-on-demand (PoD) mode, to provide a way for them to later easily have more memory assigned. Guests are permitted to control certain P2M aspects of individual pages via hypercalls. These hypercalls may act on ranges of pages specified via page orders (resulting in a power-of-2 number of pages). The implementation of some of these hypercalls for PoD does not enforce the base page frame number to be suitably aligned for the specified order, yet some code involved in PoD handling actually makes such an assumption. These operations are XENMEM_decrease_reservation (CVE-2021-28704) and XENMEM_populate_physmap (CVE-2021-28707), the latter usable only by domains controlling the guest, i.e. a de-privileged qemu or a stub domain. (Patch 1, combining the fix to both these two issues.) In addition handling of XENMEM_decrease_reservation can also trigger a host crash when the specified page order is neither 4k nor 2M nor 1G (CVE-2021-28708, patch 2).