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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2021-38493 |
Mozilla developers reported memory safety bugs present in Firefox 91 and Firefox ESR 78.13. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 78.14, Thunderbird < 78.14, and Firefox < 92. Published: November 02, 2021; 9:15:07 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-38492 |
When delegating navigations to the operating system, Firefox would accept the `mk` scheme which might allow attackers to launch pages and execute scripts in Internet Explorer in unprivileged mode. *This bug only affects Firefox for Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox < 92, Thunderbird < 91.1, Thunderbird < 78.14, Firefox ESR < 78.14, and Firefox ESR < 91.1. Published: November 02, 2021; 9:15:07 PM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2021-38491 |
Mixed-content checks were unable to analyze opaque origins which led to some mixed content being loaded. This vulnerability affects Firefox < 92. Published: November 02, 2021; 9:15:07 PM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2021-29991 |
Firefox incorrectly accepted a newline in a HTTP/3 header, interpretting it as two separate headers. This allowed for a header splitting attack against servers using HTTP/3. This vulnerability affects Firefox < 91.0.1 and Thunderbird < 91.0.1. Published: November 02, 2021; 9:15:07 PM -0400 |
V4.0:(not available) V3.1: 8.1 HIGH V2.0: 5.8 MEDIUM |
CVE-2021-29990 |
Mozilla developers and community members reported memory safety bugs present in Firefox 90. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 91. Published: August 17, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29989 |
Mozilla developers reported memory safety bugs present in Firefox 90 and Firefox ESR 78.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.13, Firefox ESR < 78.13, and Firefox < 91. Published: August 17, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29988 |
Firefox incorrectly treated an inline list-item element as a block element, resulting in an out of bounds read or memory corruption, and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. Published: August 17, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29987 |
After requesting multiple permissions, and closing the first permission panel, subsequent permission panels will be displayed in a different position but still record a click in the default location, making it possible to trick a user into accepting a permission they did not want to. *This bug only affects Firefox on Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 91 and Thunderbird < 91. Published: August 17, 2021; 4:15:07 PM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2021-29986 |
A suspected race condition when calling getaddrinfo led to memory corruption and a potentially exploitable crash. *Note: This issue only affected Linux operating systems. Other operating systems are unaffected.* This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. Published: August 17, 2021; 4:15:07 PM -0400 |
V4.0:(not available) V3.1: 8.1 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29985 |
A use-after-free vulnerability in media channels could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. Published: August 17, 2021; 4:15:07 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29984 |
Instruction reordering resulted in a sequence of instructions that would cause an object to be incorrectly considered during garbage collection. This led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. Published: August 17, 2021; 4:15:07 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29983 |
Firefox for Android could get stuck in fullscreen mode and not exit it even after normal interactions that should cause it to exit. *Note: This issue only affected Firefox for Android. Other operating systems are unaffected.*. This vulnerability affects Firefox < 91. Published: August 17, 2021; 4:15:07 PM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2021-29982 |
Due to incorrect JIT optimization, we incorrectly interpreted data from the wrong type of object, resulting in the potential leak of a single bit of memory. This vulnerability affects Firefox < 91 and Thunderbird < 91. Published: August 17, 2021; 4:15:07 PM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2021-29981 |
An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91. Published: August 17, 2021; 4:15:07 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29980 |
Uninitialized memory in a canvas object could have caused an incorrect free() leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.13, Thunderbird < 91, Firefox ESR < 78.13, and Firefox < 91. Published: August 17, 2021; 4:15:07 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29977 |
Mozilla developers reported memory safety bugs present in Firefox 89. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 90. Published: August 05, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29976 |
Mozilla developers reported memory safety bugs present in code shared between Firefox and Thunderbird. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Thunderbird < 78.12, Firefox ESR < 78.12, and Firefox < 90. Published: August 05, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |
CVE-2021-29975 |
Through a series of DOM manipulations, a message, over which the attacker had control of the text but not HTML or formatting, could be overlaid on top of another domain (with the new domain correctly shown in the address bar) resulting in possible user confusion. This vulnerability affects Firefox < 90. Published: August 05, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 6.5 MEDIUM V2.0: 4.3 MEDIUM |
CVE-2021-29974 |
When network partitioning was enabled, e.g. as a result of Enhanced Tracking Protection settings, a TLS error page would allow the user to override an error on a domain which had specified HTTP Strict Transport Security (which implies that the error should not be override-able.) This issue did not affect the network connections, and they were correctly upgraded to HTTPS automatically. This vulnerability affects Firefox < 90. Published: August 05, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 4.3 MEDIUM V2.0: 2.6 LOW |
CVE-2021-29972 |
A use-after-free vulnerability was found via testing, and traced to an out-of-date Cairo library. Updating the library resolved the issue, and may have remediated other, unknown security vulnerabilities as well. This vulnerability affects Firefox < 90. Published: August 05, 2021; 4:15:08 PM -0400 |
V4.0:(not available) V3.1: 8.8 HIGH V2.0: 6.8 MEDIUM |