Vulnerabilities (CVE)

Filtered by vendor Fedoraproject Subscribe
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2021-20270 4 Debian, Fedoraproject, Pygments and 1 more 7 Debian Linux, Fedora, Pygments and 4 more 2021-12-10 5.0 MEDIUM 7.5 HIGH
An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the "exception" keyword.
CVE-2021-28709 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-10 6.9 MEDIUM 7.8 HIGH
issues with partially successful P2M updates on x86 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). In some cases the hypervisor carries out the requests by splitting them into smaller chunks. Error handling in certain PoD cases has been insufficient in that in particular partial success of some operations was not properly accounted for. There are two code paths affected - page removal (CVE-2021-28705) and insertion of new pages (CVE-2021-28709). (We provide one patch which combines the fix to both issues.)
CVE-2020-29570 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-10 4.9 MEDIUM 6.2 MEDIUM
An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system.
CVE-2020-29566 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-10 4.9 MEDIUM 5.5 MEDIUM
An issue was discovered in Xen through 4.14.x. When they require assistance from the device model, x86 HVM guests must be temporarily de-scheduled. The device model will signal Xen when it has completed its operation, via an event channel, so that the relevant vCPU is rescheduled. If the device model were to signal Xen without having actually completed the operation, the de-schedule / re-schedule cycle would repeat. If, in addition, Xen is resignalled very quickly, the re-schedule may occur before the de-schedule was fully complete, triggering a shortcut. This potentially repeating process uses ordinary recursive function calls, and thus could result in a stack overflow. A malicious or buggy stubdomain serving a HVM guest can cause Xen to crash, resulting in a Denial of Service (DoS) to the entire host. Only x86 systems are affected. Arm systems are not affected. Only x86 stubdomains serving HVM guests can exploit the vulnerability.
CVE-2020-29571 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-10 4.9 MEDIUM 6.2 MEDIUM
An issue was discovered in Xen through 4.14.x. A bounds check common to most operation time functions specific to FIFO event channels depends on the CPU observing consistent state. While the producer side uses appropriately ordered writes, the consumer side isn't protected against re-ordered reads, and may hence end up de-referencing a NULL pointer. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system. Only Arm systems may be vulnerable. Whether a system is vulnerable depends on the specific CPU. x86 systems are not vulnerable.
CVE-2020-29567 2 Fedoraproject, Xen 2 Fedora, Xen 2021-12-10 4.9 MEDIUM 6.2 MEDIUM
An issue was discovered in Xen 4.14.x. When moving IRQs between CPUs to distribute the load of IRQ handling, IRQ vectors are dynamically allocated and de-allocated on the relevant CPUs. De-allocation has to happen when certain constraints are met. If these conditions are not met when first checked, the checking CPU may send an interrupt to itself, in the expectation that this IRQ will be delivered only after the condition preventing the cleanup has cleared. For two specific IRQ vectors, this expectation was violated, resulting in a continuous stream of self-interrupts, which renders the CPU effectively unusable. A domain with a passed through PCI device can cause lockup of a physical CPU, resulting in a Denial of Service (DoS) to the entire host. Only x86 systems are vulnerable. Arm systems are not vulnerable. Only guests with physical PCI devices passed through to them can exploit the vulnerability.
CVE-2020-29486 3 Debian, Fedoraproject, Xen 3 Debian Linux, Fedora, Xen 2021-12-10 4.9 MEDIUM 6.0 MEDIUM
An issue was discovered in Xen through 4.14.x. Nodes in xenstore have an ownership. In oxenstored, a owner could give a node away. However, node ownership has quota implications. Any guest can run another guest out of quota, or create an unbounded number of nodes owned by dom0, thus running xenstored out of memory A malicious guest administrator can cause a denial of service against a specific guest or against the whole host. All systems using oxenstored are vulnerable. Building and using oxenstored is the default in the upstream Xen distribution, if the Ocaml compiler is available. Systems using C xenstored are not vulnerable.
CVE-2021-30625 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-09 6.8 MEDIUM 8.8 HIGH
Use after free in Selection API in Google Chrome prior to 93.0.4577.82 allowed a remote attacker who convinced the user the visit a malicious website to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-30578 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-08 6.8 MEDIUM 8.8 HIGH
Uninitialized use in Media in Google Chrome prior to 92.0.4515.107 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page.
CVE-2021-30565 3 Fedoraproject, Google, Linux 4 Fedora, Chrome, Chrome Os and 1 more 2021-12-08 6.8 MEDIUM 8.8 HIGH
Out of bounds write in Tab Groups in Google Chrome on Linux and ChromeOS prior to 92.0.4515.107 allowed an attacker who convinced a user to install a malicious extension to perform an out of bounds memory write via a crafted HTML page.
CVE-2021-30576 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-08 6.8 MEDIUM 8.8 HIGH
Use after free in DevTools in Google Chrome prior to 92.0.4515.107 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-30579 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-08 6.8 MEDIUM 8.8 HIGH
Use after free in UI framework in Google Chrome prior to 92.0.4515.107 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-30584 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-08 4.3 MEDIUM 6.5 MEDIUM
Incorrect security UI in Downloads in Google Chrome on Android prior to 92.0.4515.107 allowed a remote attacker to perform domain spoofing via a crafted HTML page.
CVE-2021-30582 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-08 4.3 MEDIUM 6.5 MEDIUM
Inappropriate implementation in Animation in Google Chrome prior to 92.0.4515.107 allowed a remote attacker to leak cross-origin data via a crafted HTML page.
CVE-2021-30581 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-08 6.8 MEDIUM 8.8 HIGH
Use after free in DevTools in Google Chrome prior to 92.0.4515.107 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-30586 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-08 6.8 MEDIUM 8.8 HIGH
Use after free in dialog box handling in Windows in Google Chrome prior to 92.0.4515.107 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-30585 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-08 6.8 MEDIUM 8.8 HIGH
Use after free in sensor handling in Google Chrome on Windows prior to 92.0.4515.107 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-30587 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-08 4.3 MEDIUM 4.3 MEDIUM
Inappropriate implementation in Compositing in Google Chrome prior to 92.0.4515.107 allowed a remote attacker to potentially spoof the contents of the Omnibox (URL bar) via a crafted HTML page.
CVE-2021-30588 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-08 6.8 MEDIUM 8.8 HIGH
Type confusion in V8 in Google Chrome prior to 92.0.4515.107 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-30566 2 Fedoraproject, Google 2 Fedora, Chrome 2021-12-08 6.8 MEDIUM 8.8 HIGH
Stack buffer overflow in Printing in Google Chrome prior to 92.0.4515.107 allowed a remote attacker who had compromised the renderer process to potentially exploit stack corruption via a crafted HTML page.
CVE-2021-2146 3 Fedoraproject, Netapp, Oracle 6 Fedora, Active Iq Unified Manager, Oncommand Insight and 3 more 2021-12-08 4.0 MEDIUM 4.9 MEDIUM
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Options). Supported versions that are affected are 5.7.33 and prior and 8.0.23 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 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2021-30155 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2021-12-08 4.0 MEDIUM 4.3 MEDIUM
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. ContentModelChange does not check if a user has correct permissions to create and set the content model of a nonexistent page.
CVE-2021-30158 3 Debian, Fedoraproject, Mediawiki 3 Debian Linux, Fedora, Mediawiki 2021-12-08 5.0 MEDIUM 5.3 MEDIUM
An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Blocked users are unable to use Special:ResetTokens. This has security relevance because a blocked user might have accidentally shared a token, or might know that a token has been compromised, and yet is not able to block any potential future use of the token by an unauthorized party.
CVE-2021-22883 4 Fedoraproject, Netapp, Nodejs and 1 more 8 Fedora, E-series Performance Analyzer, Node.js and 5 more 2021-12-08 7.8 HIGH 7.5 HIGH
Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to a denial of service attack when too many connection attempts with an 'unknownProtocol' are established. This leads to a leak of file descriptors. If a file descriptor limit is configured on the system, then the server is unable to accept new connections and prevent the process also from opening, e.g. a file. If no file descriptor limit is configured, then this lead to an excessive memory usage and cause the system to run out of memory.
CVE-2021-22884 4 Fedoraproject, Netapp, Nodejs and 1 more 12 Fedora, Active Iq Unified Manager, E-series Performance Analyzer and 9 more 2021-12-08 5.1 MEDIUM 7.5 HIGH
Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to DNS rebinding attacks as the whitelist includes “localhost6”. When “localhost6” is not present in /etc/hosts, it is just an ordinary domain that is resolved via DNS, i.e., over network. If the attacker controls the victim's DNS server or can spoof its responses, the DNS rebinding protection can be bypassed by using the “localhost6” domain. As long as the attacker uses the “localhost6” domain, they can still apply the attack described in CVE-2018-7160.
CVE-2021-28363 3 Fedoraproject, Oracle, Python 3 Fedora, Peoplesoft Enterprise Peopletools, Urllib3 2021-12-08 6.4 MEDIUM 6.5 MEDIUM
The urllib3 library 1.26.x before 1.26.4 for Python omits SSL certificate validation in some cases involving HTTPS to HTTPS proxies. The initial connection to the HTTPS proxy (if an SSLContext isn't given via proxy_config) doesn't verify the hostname of the certificate. This means certificates for different servers that still validate properly with the default urllib3 SSLContext will be silently accepted.
CVE-2020-26116 7 Canonical, Debian, Fedoraproject and 4 more 9 Ubuntu Linux, Debian Linux, Fedora and 6 more 2021-12-07 6.4 MEDIUM 7.2 HIGH
http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of HTTPConnection.request.
CVE-2020-27824 4 Debian, Fedoraproject, Redhat and 1 more 4 Debian Linux, Fedora, Enterprise Linux and 1 more 2021-12-07 4.3 MEDIUM 5.5 MEDIUM
A flaw was found in OpenJPEG’s encoder in the opj_dwt_calc_explicit_stepsizes() function. This flaw allows an attacker who can supply crafted input to decomposition levels to cause a buffer overflow. The highest threat from this vulnerability is to system availability.
CVE-2021-27807 3 Apache, Fedoraproject, Oracle 11 Pdfbox, Fedora, Banking Trade Finance Process Management and 8 more 2021-12-06 4.3 MEDIUM 5.5 MEDIUM
A carefully crafted PDF file can trigger an infinite loop while loading the file. This issue affects Apache PDFBox version 2.0.22 and prior 2.0.x versions.
CVE-2021-27906 3 Apache, Fedoraproject, Oracle 15 Pdfbox, Fedora, Banking Corporate Lending Process Management and 12 more 2021-12-06 4.3 MEDIUM 5.5 MEDIUM
A carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file. This issue affects Apache PDFBox version 2.0.22 and prior 2.0.x versions.
CVE-2021-28957 5 Debian, Fedoraproject, Lxml and 2 more 5 Debian Linux, Fedora, Lxml and 2 more 2021-12-06 4.3 MEDIUM 6.1 MEDIUM
An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attacker could exploit this flaw to run arbitrary JS code on users who interact with incorrectly sanitized HTML. This issue is patched in lxml 4.6.3.
CVE-2019-17041 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2021-12-06 7.5 HIGH 9.8 CRITICAL
An issue was discovered in Rsyslog v8.1908.0. contrib/pmaixforwardedfrom/pmaixforwardedfrom.c has a heap overflow in the parser for AIX log messages. The parser tries to locate a log message delimiter (in this case, a space or a colon) but fails to account for strings that do not satisfy this constraint. If the string does not match, then the variable lenMsg will reach the value zero and will skip the sanity check that detects invalid log messages. The message will then be considered valid, and the parser will eat up the nonexistent colon delimiter. In doing so, it will decrement lenMsg, a signed integer, whose value was zero and now becomes minus one. The following step in the parser is to shift left the contents of the message. To do this, it will call memmove with the right pointers to the target and destination strings, but the lenMsg will now be interpreted as a huge value, causing a heap overflow.
CVE-2019-17042 4 Debian, Fedoraproject, Opensuse and 1 more 4 Debian Linux, Fedora, Leap and 1 more 2021-12-06 7.5 HIGH 9.8 CRITICAL
An issue was discovered in Rsyslog v8.1908.0. contrib/pmcisconames/pmcisconames.c has a heap overflow in the parser for Cisco log messages. The parser tries to locate a log message delimiter (in this case, a space or a colon), but fails to account for strings that do not satisfy this constraint. If the string does not match, then the variable lenMsg will reach the value zero and will skip the sanity check that detects invalid log messages. The message will then be considered valid, and the parser will eat up the nonexistent colon delimiter. In doing so, it will decrement lenMsg, a signed integer, whose value was zero and now becomes minus one. The following step in the parser is to shift left the contents of the message. To do this, it will call memmove with the right pointers to the target and destination strings, but the lenMsg will now be interpreted as a huge value, causing a heap overflow.
CVE-2021-20305 5 Debian, Fedoraproject, Netapp and 2 more 6 Debian Linux, Fedora, Active Iq Unified Manager and 3 more 2021-12-06 6.8 MEDIUM 8.1 HIGH
A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability.
CVE-2021-2196 3 Fedoraproject, Netapp, Oracle 6 Fedora, Active Iq Unified Manager, Oncommand Insight and 3 more 2021-12-03 4.0 MEDIUM 4.9 MEDIUM
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: DML). Supported versions that are affected are 8.0.23 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 3.1 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2020-36281 4 Debian, Fedoraproject, Leptonica and 1 more 4 Debian Linux, Fedora, Leptonica and 1 more 2021-12-03 5.0 MEDIUM 7.5 HIGH
Leptonica before 1.80.0 allows a heap-based buffer over-read in pixFewColorsOctcubeQuantMixed in colorquant1.c.
CVE-2021-21193 3 Debian, Fedoraproject, Google 3 Debian Linux, Fedora, Chrome 2021-12-03 6.8 MEDIUM 8.8 HIGH
Use after free in Blink in Google Chrome prior to 89.0.4389.90 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-21172 4 Debian, Fedoraproject, Google and 1 more 4 Debian Linux, Fedora, Chrome and 1 more 2021-12-03 5.8 MEDIUM 8.1 HIGH
Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89.0.4389.72 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.
CVE-2020-36279 4 Debian, Fedoraproject, Leptonica and 1 more 4 Debian Linux, Fedora, Leptonica and 1 more 2021-12-03 5.0 MEDIUM 7.5 HIGH
Leptonica before 1.80.0 allows a heap-based buffer over-read in rasteropGeneralLow, related to adaptmap_reg.c and adaptmap.c.
CVE-2020-36280 2 Fedoraproject, Leptonica 2 Fedora, Leptonica 2021-12-03 5.0 MEDIUM 7.5 HIGH
Leptonica before 1.80.0 allows a heap-based buffer over-read in pixReadFromTiffStream, related to tiffio.c.
CVE-2020-36277 4 Debian, Fedoraproject, Leptonica and 1 more 4 Debian Linux, Fedora, Leptonica and 1 more 2021-12-03 5.0 MEDIUM 7.5 HIGH
Leptonica before 1.80.0 allows a denial of service (application crash) via an incorrect left shift in pixConvert2To8 in pixconv.c.
CVE-2020-36278 4 Debian, Fedoraproject, Leptonica and 1 more 4 Debian Linux, Fedora, Leptonica and 1 more 2021-12-03 5.0 MEDIUM 7.5 HIGH
Leptonica before 1.80.0 allows a heap-based buffer over-read in findNextBorderPixel in ccbord.c.
CVE-2021-21171 3 Debian, Fedoraproject, Google 4 Debian Linux, Fedora, Android and 1 more 2021-12-03 4.3 MEDIUM 6.5 MEDIUM
Incorrect security UI in TabStrip and Navigation in Google Chrome on Android prior to 89.0.4389.72 allowed a remote attacker to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.
CVE-2021-21170 3 Debian, Fedoraproject, Google 3 Debian Linux, Fedora, Chrome 2021-12-03 4.3 MEDIUM 6.5 MEDIUM
Incorrect security UI in Loader in Google Chrome prior to 89.0.4389.72 allowed a remote attacker who had compromised the renderer process to spoof the contents of the Omnibox (URL bar) via a crafted HTML page.
CVE-2021-21169 3 Debian, Fedoraproject, Google 3 Debian Linux, Fedora, Chrome 2021-12-03 6.8 MEDIUM 8.8 HIGH
Out of bounds memory access in V8 in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.
CVE-2021-21159 3 Debian, Fedoraproject, Google 3 Debian Linux, Fedora, Chrome 2021-12-03 6.8 MEDIUM 8.8 HIGH
Heap buffer overflow in TabStrip in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-21168 3 Debian, Fedoraproject, Google 3 Debian Linux, Fedora, Chrome 2021-12-03 4.3 MEDIUM 6.5 MEDIUM
Insufficient policy enforcement in appcache in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to obtain potentially sensitive information from process memory via a crafted HTML page.
CVE-2021-21167 3 Debian, Fedoraproject, Google 3 Debian Linux, Fedora, Chrome 2021-12-03 6.8 MEDIUM 8.8 HIGH
Use after free in bookmarks in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-21166 3 Debian, Fedoraproject, Google 3 Debian Linux, Fedora, Chrome 2021-12-03 6.8 MEDIUM 8.8 HIGH
Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
CVE-2021-21164 4 Apple, Debian, Fedoraproject and 1 more 4 Iphone Os, Debian Linux, Fedora and 1 more 2021-12-03 4.3 MEDIUM 6.5 MEDIUM
Insufficient data validation in Chrome on iOS in Google Chrome on iOS prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page.