CVE-2021-23995

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

DEBIAN-CVE-2021-23999

If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-23994

A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound write. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

Command injection

The Mozilla Maintenance Service granted SERVICESTART access to BUILTIN|Users which, in a domain network, grants normal remote users access to start or stop the service. This could be used to prevent the browser update service from operating if an attacker spammed the 'Stop' command; but also...

CVE-2021-29951

The Mozilla Maintenance Service granted SERVICESTART access to BUILTIN|Users which, in a domain network, grants normal remote users access to start or stop the service. This could be used to prevent the browser update service from operating if an attacker spammed the 'Stop' command; but also...

UBUNTU-CVE-2021-29964

A locally-installed hostile program could send WMCOPYDATA messages that Firefox would process incorrectly, leading to an out-of-bounds read. This bug only affects Firefox on Windows. Other operating systems are unaffected.. This vulnerability affects Thunderbird 78.11, Firefox 89, and Firefox ESR...

Code injection

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

Integer overflow

Ports that were written as an integer overflow above the bounds of a 16-bit integer could have bypassed port blocking restrictions when used in the Alt-Svc header. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-29955

A transient execution vulnerability, named Floating Point Value Injection FPVI allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. A related vulnerability, Speculative Code Store Bypass SCSB, did not affect Firefox.. This vulnerability...

Memory corruption

A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound write. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

Code injection

When a user clicked on an FTP URL containing encoded newline characters %0A and %0D, the newlines would have been interpreted as such and allowed arbitrary commands to be sent to the FTP server. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

Design/Logic Flaw

The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. Note: This issue only affected x86-32 platforms. Other platforms are unaffected.. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

Code injection

If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

Type confusion

A transient execution vulnerability, named Floating Point Value Injection FPVI allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. A related vulnerability, Speculative Code Store Bypass SCSB, did not affect Firefox.. This vulnerability...

Design/Logic Flaw

Through complicated navigations with new windows, an HTTP page could have inherited a secure lock icon from an HTTPS page. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-29955

A transient execution vulnerability, named Floating Point Value Injection FPVI allowed an attacker to leak arbitrary memory addresses and may have also enabled JIT type confusion attacks. A related vulnerability, Speculative Code Store Bypass SCSB, did not affect Firefox.. This vulnerability...

CVE-2021-23994

A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound write. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-23994

A WebGL framebuffer was not initialized early enough, resulting in memory corruption and an out of bound write. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...

CVE-2021-23994

CVE-2021-23994 describes a WebGL-related memory corruption due to a framebuffer not initialized early enough, causing an out-of-bounds write. Affected products are Firefox ESR versions earlier than 78.10, Thunderbird versions earlier than 78.10, and Firefox versions earlier than 88. The root caus...

CVE-2021-23995

When Responsive Design Mode was enabled, it used references to objects that were previously freed. We presume that with enough effort this could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR 78.10, Thunderbird 78.10, and Firefox 88...