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3698 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2020-28035 | 3 Debian, Fedoraproject, Wordpress | 3 Debian Linux, Fedora, Wordpress | 2022-04-28 | 7.5 HIGH | 9.8 CRITICAL |
| WordPress before 5.5.2 allows attackers to gain privileges via XML-RPC. | |||||
| CVE-2020-27638 | 3 Debian, Fastd Project, Fedoraproject | 3 Debian Linux, Fastd, Fedora | 2022-04-28 | 5.0 MEDIUM | 7.5 HIGH |
| receive.c in fastd before v21 allows denial of service (assertion failure) when receiving packets with an invalid type code. | |||||
| CVE-2020-25599 | 4 Debian, Fedoraproject, Opensuse and 1 more | 4 Debian Linux, Fedora, Leap and 1 more | 2022-04-28 | 4.4 MEDIUM | 7.0 HIGH |
| An issue was discovered in Xen through 4.14.x. There are evtchn_reset() race conditions. Uses of EVTCHNOP_reset (potentially by a guest on itself) or XEN_DOMCTL_soft_reset (by itself covered by XSA-77) can lead to the violation of various internal assumptions. This may lead to out of bounds memory accesses or triggering of bug checks. In particular, x86 PV guests may be able to elevate their privilege to that of the host. Host and guest crashes are also possible, leading to a Denial of Service (DoS). Information leaks cannot be ruled out. All Xen versions from 4.5 onwards are vulnerable. Xen versions 4.4 and earlier are not vulnerable. | |||||
| CVE-2020-25600 | 4 Debian, Fedoraproject, Opensuse and 1 more | 4 Debian Linux, Fedora, Leap and 1 more | 2022-04-28 | 4.9 MEDIUM | 5.5 MEDIUM |
| An issue was discovered in Xen through 4.14.x. Out of bounds event channels are available to 32-bit x86 domains. The so called 2-level event channel model imposes different limits on the number of usable event channels for 32-bit x86 domains vs 64-bit or Arm (either bitness) ones. 32-bit x86 domains can use only 1023 channels, due to limited space in their shared (between guest and Xen) information structure, whereas all other domains can use up to 4095 in this model. The recording of the respective limit during domain initialization, however, has occurred at a time where domains are still deemed to be 64-bit ones, prior to actually honoring respective domain properties. At the point domains get recognized as 32-bit ones, the limit didn't get updated accordingly. Due to this misbehavior in Xen, 32-bit domains (including Domain 0) servicing other domains may observe event channel allocations to succeed when they should really fail. Subsequent use of such event channels would then possibly lead to corruption of other parts of the shared info structure. An unprivileged guest may cause another domain, in particular Domain 0, to misbehave. This may lead to a Denial of Service (DoS) for the entire system. All Xen versions from 4.4 onwards are vulnerable. Xen versions 4.3 and earlier are not vulnerable. Only x86 32-bit domains servicing other domains are vulnerable. Arm systems, as well as x86 64-bit domains, are not vulnerable. | |||||
| CVE-2020-25601 | 4 Debian, Fedoraproject, Opensuse and 1 more | 4 Debian Linux, Fedora, Leap and 1 more | 2022-04-28 | 4.9 MEDIUM | 5.5 MEDIUM |
| An issue was discovered in Xen through 4.14.x. There is a lack of preemption in evtchn_reset() / evtchn_destroy(). In particular, the FIFO event channel model allows guests to have a large number of event channels active at a time. Closing all of these (when resetting all event channels or when cleaning up after the guest) may take extended periods of time. So far, there was no arrangement for preemption at suitable intervals, allowing a CPU to spend an almost unbounded amount of time in the processing of these operations. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. All Xen versions are vulnerable in principle. Whether versions 4.3 and older are vulnerable depends on underlying hardware characteristics. | |||||
| CVE-2020-25603 | 4 Debian, Fedoraproject, Opensuse and 1 more | 4 Debian Linux, Fedora, Leap and 1 more | 2022-04-28 | 4.6 MEDIUM | 7.8 HIGH |
| An issue was discovered in Xen through 4.14.x. There are missing memory barriers when accessing/allocating an event channel. Event channels control structures can be accessed lockless as long as the port is considered to be valid. Such a sequence is missing an appropriate memory barrier (e.g., smp_*mb()) to prevent both the compiler and CPU from re-ordering access. A malicious guest may be able to cause a hypervisor crash resulting in a Denial of Service (DoS). Information leak and privilege escalation cannot be excluded. Systems running all versions of Xen are affected. Whether a system is vulnerable will depend on the CPU and compiler used to build Xen. For all systems, the presence and the scope of the vulnerability depend on the precise re-ordering performed by the compiler used to build Xen. We have not been able to survey compilers; consequently we cannot say which compiler(s) might produce vulnerable code (with which code generation options). GCC documentation clearly suggests that re-ordering is possible. Arm systems will also be vulnerable if the CPU is able to re-order memory access. Please consult your CPU vendor. x86 systems are only vulnerable if a compiler performs re-ordering. | |||||
| CVE-2021-21900 | 3 Debian, Fedoraproject, Librecad | 3 Debian Linux, Fedora, Libdxfrw | 2022-04-28 | 6.8 MEDIUM | 8.8 HIGH |
| A code execution vulnerability exists in the dxfRW::processLType() functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dxf file can lead to a use-after-free vulnerability. An attacker can provide a malicious file to trigger this vulnerability. | |||||
| CVE-2021-21899 | 3 Debian, Fedoraproject, Librecad | 3 Debian Linux, Fedora, Libdxfrw | 2022-04-28 | 6.8 MEDIUM | 8.8 HIGH |
| A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability. | |||||
| CVE-2021-21775 | 3 Debian, Fedoraproject, Webkitgtk | 3 Debian Linux, Fedora, Webkitgtk | 2022-04-28 | 6.8 MEDIUM | 8.8 HIGH |
| A use-after-free vulnerability exists in the way certain events are processed for ImageLoader objects of Webkit WebKitGTK 2.30.4. A specially crafted web page can lead to a potential information leak and further memory corruption. In order to trigger the vulnerability, a victim must be tricked into visiting a malicious webpage. | |||||
| CVE-2021-21898 | 3 Debian, Fedoraproject, Librecad | 3 Debian Linux, Fedora, Libdxfrw | 2022-04-28 | 6.8 MEDIUM | 8.8 HIGH |
| A code execution vulnerability exists in the dwgCompressor::decompress18() functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to an out-of-bounds write. An attacker can provide a malicious file to trigger this vulnerability. | |||||
| CVE-2021-21703 | 5 Debian, Fedoraproject, Netapp and 2 more | 5 Debian Linux, Fedora, Clustered Data Ontap and 2 more | 2022-04-28 | 6.9 MEDIUM | 7.0 HIGH |
| In PHP versions 7.3.x up to and including 7.3.31, 7.4.x below 7.4.25 and 8.0.x below 8.0.12, when running PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users, it is possible for the child processes to access memory shared with the main process and write to it, modifying it in a way that would cause the root process to conduct invalid memory reads and writes, which can be used to escalate privileges from local unprivileged user to the root user. | |||||
| CVE-2020-3810 | 3 Canonical, Debian, Fedoraproject | 4 Ubuntu Linux, Apt, Debian Linux and 1 more | 2022-04-27 | 4.3 MEDIUM | 5.5 MEDIUM |
| Missing input validation in the ar/tar implementations of APT before version 2.1.2 could result in denial of service when processing specially crafted deb files. | |||||
| CVE-2020-10757 | 7 Canonical, Debian, Fedoraproject and 4 more | 10 Ubuntu Linux, Debian Linux, Fedora and 7 more | 2022-04-27 | 6.9 MEDIUM | 7.8 HIGH |
| A flaw was found in the Linux Kernel in versions after 4.5-rc1 in the way mremap handled DAX Huge Pages. This flaw allows a local attacker with access to a DAX enabled storage to escalate their privileges on the system. | |||||
| CVE-2020-10029 | 5 Canonical, Fedoraproject, Gnu and 2 more | 11 Ubuntu Linux, Fedora, Glibc and 8 more | 2022-04-27 | 2.1 LOW | 5.5 MEDIUM |
| The GNU C Library (aka glibc or libc6) before 2.32 could overflow an on-stack buffer during range reduction if an input to an 80-bit long double function contains a non-canonical bit pattern, a seen when passing a 0x5d414141414141410000 value to sinl on x86 targets. This is related to sysdeps/ieee754/ldbl-96/e_rem_pio2l.c. | |||||
| CVE-2022-27652 | 4 Fedoraproject, Kubernetes, Mobyproject and 1 more | 4 Fedora, Cri-o, Moby and 1 more | 2022-04-27 | 4.6 MEDIUM | 5.3 MEDIUM |
| A flaw was found in cri-o, where containers were incorrectly started with non-empty default permissions. A vulnerability was found in Moby (Docker Engine) where containers started incorrectly with non-empty inheritable Linux process capabilities. This flaw allows an attacker with access to programs with inheritable file capabilities to elevate those capabilities to the permitted set when execve(2) runs. | |||||
| CVE-2020-6463 | 5 Canonical, Debian, Fedoraproject and 2 more | 6 Ubuntu Linux, Debian Linux, Fedora and 3 more | 2022-04-26 | 6.8 MEDIUM | 8.8 HIGH |
| Use after free in ANGLE in Google Chrome prior to 81.0.4044.122 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. | |||||
| CVE-2022-0571 | 2 Fedoraproject, Phoronix-media | 3 Extra Packages For Enterprise Linux, Fedora, Phoronix Test Suite | 2022-04-26 | 4.3 MEDIUM | 6.1 MEDIUM |
| Cross-site Scripting (XSS) - Reflected in GitHub repository phoronix-test-suite/phoronix-test-suite prior to 10.8.2. | |||||
| CVE-2019-12529 | 5 Canonical, Debian, Fedoraproject and 2 more | 5 Ubuntu Linux, Debian Linux, Fedora and 2 more | 2022-04-26 | 4.3 MEDIUM | 5.9 MEDIUM |
| An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages. | |||||
| CVE-2019-12525 | 5 Canonical, Debian, Fedoraproject and 2 more | 5 Ubuntu Linux, Debian Linux, Fedora and 2 more | 2022-04-26 | 7.5 HIGH | 9.8 CRITICAL |
| An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token's value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1. | |||||
| CVE-2019-1010301 | 3 Debian, Fedoraproject, Jhead Project | 3 Debian Linux, Fedora, Jhead | 2022-04-26 | 4.3 MEDIUM | 5.5 MEDIUM |
| jhead 3.03 is affected by: Buffer Overflow. The impact is: Denial of service. The component is: gpsinfo.c Line 151 ProcessGpsInfo(). The attack vector is: Open a specially crafted JPEG file. | |||||
| CVE-2019-19126 | 3 Canonical, Fedoraproject, Gnu | 3 Ubuntu Linux, Fedora, Glibc | 2022-04-26 | 2.1 LOW | 3.3 LOW |
| On the x86-64 architecture, the GNU C Library (aka glibc) before 2.31 fails to ignore the LD_PREFER_MAP_32BIT_EXEC environment variable during program execution after a security transition, allowing local attackers to restrict the possible mapping addresses for loaded libraries and thus bypass ASLR for a setuid program. | |||||
| CVE-2019-12526 | 5 Canonical, Debian, Fedoraproject and 2 more | 5 Ubuntu Linux, Debian Linux, Fedora and 2 more | 2022-04-26 | 7.5 HIGH | 9.8 CRITICAL |
| An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap. | |||||
| CVE-2019-12528 | 5 Canonical, Debian, Fedoraproject and 2 more | 5 Ubuntu Linux, Debian Linux, Fedora and 2 more | 2022-04-26 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in Squid before 4.10. It allows a crafted FTP server to trigger disclosure of sensitive information from heap memory, such as information associated with other users' sessions or non-Squid processes. | |||||
| CVE-2020-12244 | 4 Debian, Fedoraproject, Opensuse and 1 more | 5 Debian Linux, Fedora, Backports Sle and 2 more | 2022-04-26 | 5.0 MEDIUM | 7.5 HIGH |
| An issue has been found in PowerDNS Recursor 4.1.0 through 4.3.0 where records in the answer section of a NXDOMAIN response lacking an SOA were not properly validated in SyncRes::processAnswer, allowing an attacker to bypass DNSSEC validation. | |||||
| CVE-2020-10995 | 4 Debian, Fedoraproject, Opensuse and 1 more | 5 Debian Linux, Fedora, Backports Sle and 2 more | 2022-04-26 | 5.0 MEDIUM | 7.5 HIGH |
| PowerDNS Recursor from 4.1.0 up to and including 4.3.0 does not sufficiently defend against amplification attacks. An issue in the DNS protocol has been found that allow malicious parties to use recursive DNS services to attack third party authoritative name servers. The attack uses a crafted reply by an authoritative name server to amplify the resulting traffic between the recursive and other authoritative name servers. Both types of service can suffer degraded performance as an effect. This is triggered by random subdomains in the NSDNAME in NS records. PowerDNS Recursor 4.1.16, 4.2.2 and 4.3.1 contain a mitigation to limit the impact of this DNS protocol issue. | |||||
| CVE-2020-6477 | 4 Apple, Fedoraproject, Google and 1 more | 5 Mac Os X, Fedora, Chrome and 2 more | 2022-04-26 | 4.6 MEDIUM | 7.8 HIGH |
| Inappropriate implementation in installer in Google Chrome on OS X prior to 83.0.4103.61 allowed a local attacker to perform privilege escalation via a crafted file. | |||||
| CVE-2020-6468 | 4 Debian, Fedoraproject, Google and 1 more | 5 Debian Linux, Fedora, Chrome and 2 more | 2022-04-26 | 6.8 MEDIUM | 8.8 HIGH |
| Type confusion in V8 in Google Chrome prior to 83.0.4103.61 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. | |||||
| CVE-2020-12459 | 2 Fedoraproject, Grafana | 2 Fedora, Grafana | 2022-04-26 | 2.1 LOW | 5.5 MEDIUM |
| In certain Red Hat packages for Grafana 6.x through 6.3.6, the configuration files /etc/grafana/grafana.ini and /etc/grafana/ldap.toml (which contain a secret_key and a bind_password) are world readable. | |||||
| CVE-2020-12458 | 3 Fedoraproject, Grafana, Redhat | 4 Fedora, Grafana, Ceph Storage and 1 more | 2022-04-26 | 2.1 LOW | 5.5 MEDIUM |
| An information-disclosure flaw was found in Grafana through 6.7.3. The database directory /var/lib/grafana and database file /var/lib/grafana/grafana.db are world readable. This can result in exposure of sensitive information (e.g., cleartext or encrypted datasource passwords). | |||||
| CVE-2021-1788 | 3 Apple, Debian, Fedoraproject | 9 Ipados, Iphone Os, Mac Os X and 6 more | 2022-04-26 | 6.8 MEDIUM | 8.8 HIGH |
| A use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, tvOS 14.4, watchOS 7.3, iOS 14.4 and iPadOS 14.4, Safari 14.0.3. Processing maliciously crafted web content may lead to arbitrary code execution. | |||||
| CVE-2021-1871 | 3 Apple, Debian, Fedoraproject | 6 Ipad Os, Iphone Os, Mac Os X and 3 more | 2022-04-26 | 7.5 HIGH | 9.8 CRITICAL |
| A logic issue was addressed with improved restrictions. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, Security Update 2021-001 Mojave, iOS 14.4 and iPadOS 14.4. A remote attacker may be able to cause arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.. | |||||
| CVE-2021-1844 | 3 Apple, Debian, Fedoraproject | 8 Ipad Os, Iphone Os, Macos and 5 more | 2022-04-26 | 6.8 MEDIUM | 8.8 HIGH |
| A memory corruption issue was addressed with improved validation. This issue is fixed in iOS 14.4.1 and iPadOS 14.4.1, Safari 14.0.3 (v. 14610.4.3.1.7 and 15610.4.3.1.7), watchOS 7.3.2, macOS Big Sur 11.2.3. Processing maliciously crafted web content may lead to arbitrary code execution. | |||||
| CVE-2021-20266 | 2 Fedoraproject, Rpm | 2 Fedora, Rpm | 2022-04-26 | 4.0 MEDIUM | 4.9 MEDIUM |
| A flaw was found in RPM's hdrblobInit() in lib/header.c. This flaw allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability. | |||||
| CVE-2020-16166 | 7 Canonical, Debian, Fedoraproject and 4 more | 16 Ubuntu Linux, Debian Linux, Fedora and 13 more | 2022-04-26 | 4.3 MEDIUM | 3.7 LOW |
| The Linux kernel through 5.7.11 allows remote attackers to make observations that help to obtain sensitive information about the internal state of the network RNG, aka CID-f227e3ec3b5c. This is related to drivers/char/random.c and kernel/time/timer.c. | |||||
| CVE-2020-11612 | 5 Debian, Fedoraproject, Netapp and 2 more | 13 Debian Linux, Fedora, Oncommand Api Services and 10 more | 2022-04-26 | 5.0 MEDIUM | 7.5 HIGH |
| The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder. | |||||
| CVE-2020-1934 | 6 Apache, Canonical, Debian and 3 more | 11 Http Server, Ubuntu Linux, Debian Linux and 8 more | 2022-04-26 | 5.0 MEDIUM | 5.3 MEDIUM |
| In Apache HTTP Server 2.4.0 to 2.4.41, mod_proxy_ftp may use uninitialized memory when proxying to a malicious FTP server. | |||||
| CVE-2020-11758 | 6 Apple, Canonical, Debian and 3 more | 12 Icloud, Ipad Os, Iphone Os and 9 more | 2022-04-26 | 4.3 MEDIUM | 5.5 MEDIUM |
| An issue was discovered in OpenEXR before 2.4.1. There is an out-of-bounds read in ImfOptimizedPixelReading.h. | |||||
| CVE-2020-8835 | 4 Canonical, Fedoraproject, Linux and 1 more | 47 Ubuntu Linux, Fedora, Linux Kernel and 44 more | 2022-04-26 | 7.2 HIGH | 7.8 HIGH |
| In the Linux kernel 5.5.0 and newer, the bpf verifier (kernel/bpf/verifier.c) did not properly restrict the register bounds for 32-bit operations, leading to out-of-bounds reads and writes in kernel memory. The vulnerability also affects the Linux 5.4 stable series, starting with v5.4.7, as the introducing commit was backported to that branch. This vulnerability was fixed in 5.6.1, 5.5.14, and 5.4.29. (issue is aka ZDI-CAN-10780) | |||||
| CVE-2020-10531 | 8 Canonical, Debian, Fedoraproject and 5 more | 10 Ubuntu Linux, Debian Linux, Fedora and 7 more | 2022-04-26 | 6.8 MEDIUM | 8.8 HIGH |
| An issue was discovered in International Components for Unicode (ICU) for C/C++ through 66.1. An integer overflow, leading to a heap-based buffer overflow, exists in the UnicodeString::doAppend() function in common/unistr.cpp. | |||||
| CVE-2020-11765 | 6 Apple, Canonical, Debian and 3 more | 12 Icloud, Ipad Os, Iphone Os and 9 more | 2022-04-26 | 4.3 MEDIUM | 5.5 MEDIUM |
| An issue was discovered in OpenEXR before 2.4.1. There is an off-by-one error in use of the ImfXdr.h read function by DwaCompressor::Classifier::Classifier, leading to an out-of-bounds read. | |||||
| CVE-2022-0204 | 2 Bluez, Fedoraproject | 2 Bluez, Fedora | 2022-04-26 | 5.8 MEDIUM | 8.8 HIGH |
| A heap overflow vulnerability was found in bluez in versions prior to 5.63. An attacker with local network access could pass specially crafted files causing an application to halt or crash, leading to a denial of service. | |||||
| CVE-2020-28924 | 2 Fedoraproject, Rclone | 2 Fedora, Rclone | 2022-04-26 | 5.0 MEDIUM | 7.5 HIGH |
| An issue was discovered in Rclone before 1.53.3. Due to the use of a weak random number generator, the password generator has been producing weak passwords with much less entropy than advertised. The suggested passwords depend deterministically on the time the second rclone was started. This limits the entropy of the passwords enormously. These passwords are often used in the crypt backend for encryption of data. It would be possible to make a dictionary of all possible passwords with about 38 million entries per password length. This would make decryption of secret material possible with a plausible amount of effort. NOTE: all passwords generated by affected versions should be changed. | |||||
| CVE-2021-3308 | 2 Fedoraproject, Xen | 2 Fedora, Xen | 2022-04-26 | 4.9 MEDIUM | 5.5 MEDIUM |
| An issue was discovered in Xen 4.12.3 through 4.12.4 and 4.13.1 through 4.14.x. An x86 HVM guest with PCI pass through devices can force the allocation of all IDT vectors on the system by rebooting itself with MSI or MSI-X capabilities enabled and entries setup. Such reboots will leak any vectors used by the MSI(-X) entries that the guest might had enabled, and hence will lead to vector exhaustion on the system, not allowing further PCI pass through devices to work properly. HVM guests with PCI pass through devices can mount a Denial of Service (DoS) attack affecting the pass through of PCI devices to other guests or the hardware domain. In the latter case, this would affect the entire host. | |||||
| CVE-2020-8698 | 5 Debian, Fedoraproject, Intel and 2 more | 49 Debian Linux, Fedora, Core I3-1000g1 and 46 more | 2022-04-26 | 2.1 LOW | 5.5 MEDIUM |
| Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. | |||||
| CVE-2020-0452 | 2 Fedoraproject, Google | 2 Fedora, Android | 2022-04-26 | 7.5 HIGH | 9.8 CRITICAL |
| In exif_entry_get_value of exif-entry.c, there is a possible out of bounds write due to an integer overflow. This could lead to remote code execution if a third party app used this library to process remote image data with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-11 Android-8.0Android ID: A-159625731 | |||||
| CVE-2020-27674 | 3 Debian, Fedoraproject, Xen | 3 Debian Linux, Fedora, Xen | 2022-04-26 | 4.6 MEDIUM | 5.3 MEDIUM |
| An issue was discovered in Xen through 4.14.x allowing x86 PV guest OS users to gain guest OS privileges by modifying kernel memory contents, because invalidation of TLB entries is mishandled during use of an INVLPG-like attack technique. | |||||
| CVE-2020-27675 | 3 Debian, Fedoraproject, Linux | 3 Debian Linux, Fedora, Linux Kernel | 2022-04-26 | 4.7 MEDIUM | 4.7 MEDIUM |
| An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. drivers/xen/events/events_base.c allows event-channel removal during the event-handling loop (a race condition). This can cause a use-after-free or NULL pointer dereference, as demonstrated by a dom0 crash via events for an in-reconfiguration paravirtualized device, aka CID-073d0552ead5. | |||||
| CVE-2021-3392 | 3 Debian, Fedoraproject, Qemu | 3 Debian Linux, Fedora, Qemu | 2022-04-26 | 2.1 LOW | 3.2 LOW |
| A use-after-free flaw was found in the MegaRAID emulator of QEMU. This issue occurs while processing SCSI I/O requests in the case of an error mptsas_free_request() that does not dequeue the request object 'req' from a pending requests queue. This flaw allows a privileged guest user to crash the QEMU process on the host, resulting in a denial of service. Versions between 2.10.0 and 5.2.0 are potentially affected. | |||||
| CVE-2021-3409 | 4 Debian, Fedoraproject, Qemu and 1 more | 4 Debian Linux, Fedora, Qemu and 1 more | 2022-04-26 | 4.6 MEDIUM | 5.7 MEDIUM |
| The patch for CVE-2020-17380/CVE-2020-25085 was found to be ineffective, thus making QEMU vulnerable to the out-of-bounds read/write access issues previously found in the SDHCI controller emulation code. This flaw allows a malicious privileged guest to crash the QEMU process on the host, resulting in a denial of service or potential code execution. QEMU up to (including) 5.2.0 is affected by this. | |||||
| CVE-2020-27671 | 4 Debian, Fedoraproject, Opensuse and 1 more | 4 Debian Linux, Fedora, Leap and 1 more | 2022-04-26 | 6.9 MEDIUM | 7.8 HIGH |
| An issue was discovered in Xen through 4.14.x allowing x86 HVM and PVH guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because coalescing of per-page IOMMU TLB flushes is mishandled. | |||||