CVE-2024-3854

Mozilla Firefox is a standalone web browser, designed for standards compliance and performance. Its functionality can be enhanced via a plethora of extensions.

Security Fix(es):

There was no limit to the number of HTTP/2 CONTINUATION frames that would be processed. A server could abuse this to create an Out of Memory condition in the browser. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.(CVE-2024-3302)

GetBoundName could return the wrong version of an object when JIT optimizations were applied. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.(CVE-2024-3852)

In some code patterns the JIT incorrectly optimized switch statements and generated code with out-of-bounds-reads. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.(CVE-2024-3854)

On 32-bit versions there were integer-overflows that led to an out-of-bounds-read that potentially could be triggered by a malformed OpenType font. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.(CVE-2024-3859)

If an AlignedBuffer were assigned to itself, the subsequent self-move could result in an incorrect reference count and later use-after-free. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.(CVE-2024-3861)

If the browser.privatebrowsing.autostart preference is enabled, IndexedDB files were not properly deleted when the window was closed. This preference is disabled by default in Firefox. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.(CVE-2024-4767)

When importing resources using Web Workers, error messages would distinguish the difference between application/javascript responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.(CVE-2024-4769)

Offscreen Canvas did not properly track cross-origin tainting, which could be used to access image data from another site in violation of same-origin policy. This vulnerability affects Firefox < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.(CVE-2024-5693)

Memory safety bugs present in Firefox 126, Firefox ESR 115.11, and Thunderbird 115.11. 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 < 127, Firefox ESR < 115.12, and Thunderbird < 115.12.(CVE-2024-5700)

Mozilla Firefox is a standalone web browser, designed for standards compliance and performance. Its functionality can be enhanced via a plethora of extensions.

Security Fix(es):

When loading a script with Subresource Integrity, attackers with an injection capability could trigger the reuse of previously cached entries with incorrect, different integrity metadata. This vulnerability affects Firefox < 103.(CVE-2022-36315)

When using the Performance API, an attacker was able to notice subtle differences between PerformanceEntries and thus learn whether the target URL had been subject to a redirect. This vulnerability affects Firefox < 103.(CVE-2022-36316)

An attacker could have written a value to the first element in a zero-length JavaScript array. Although the array was zero-length, the value was not written to an invalid memory address. This vulnerability affects Firefox < 104.(CVE-2022-38475)

Service Workers did not detect Private Browsing Mode correctly in all cases, which could have led to Service Workers being written to disk for websites visited in Private Browsing Mode. This would not have persisted them in a state where they would run again, but it would have leaked Private Browsing Mode details to disk. This vulnerability affects Firefox < 107.(CVE-2022-45417)

If the user added a security exception for an invalid TLS certificate, opened an ongoing TLS connection with a server that used that certificate, and then deleted the exception, Firefox would have kept the connection alive, making it seem like the certificate was still trusted. This vulnerability affects Firefox < 107.(CVE-2022-45419)

Mozilla developers and community members Lukas Bernhard, Gabriele Svelto, Randell Jesup, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 107. 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 < 108.(CVE-2022-46879)

Mozilla developers Gabriele Svelto, Yulia Startsev, Andrew McCreight and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 106. 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.<br />Note: This advisory was added on December 13th, 2022 after discovering it was inadvertently left out of the original advisory. The fix was included in the original release of Firefox 107. This vulnerability affects Firefox < 107.(CVE-2022-46883)

Due to URL previews in the network panel of developer tools improperly storing URLs, query parameters could potentially be used to overwrite global objects in privileged code. This vulnerability affects Firefox < 110.(CVE-2023-25731)

The return value from gfx::SourceSurfaceSkia::Map() wasn't being verified which could have potentially lead to a null pointer dereference. This vulnerability affects Firefox < 110.(CVE-2023-25733)

An invalid downcast from nsHTMLDocument to nsIContent could have lead to undefined behavior. This vulnerability affects Firefox < 110.(CVE-2023-25736)

Under certain circumstances, a ServiceWorker's offline cache may have leaked to the file system when using private browsing mode. This vulnerability affects Firefox < 111.(CVE-2023-25750)

When following a redirect to a publicly accessible web extension file, the URL may have been translated to the actual local path, leaking potentially sensitive information. This vulnerability affects Firefox < 111.(CVE-2023-28160)

Memory safety bugs present in Firefox 110. 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 < 111.(CVE-2023-28177)

Multiple race conditions in the font initialization could have led to memory corruption…

Mozilla Firefox is a standalone web browser, designed for standards compliance and performance. Its functionality can be enhanced via a plethora of extensions.

Security Fix(es):

When loading a script with Subresource Integrity, attackers with an injection capability could trigger the reuse of previously cached entries with incorrect, different integrity metadata. This vulnerability affects Firefox < 103.(CVE-2022-36315)

When using the Performance API, an attacker was able to notice subtle differences between PerformanceEntries and thus learn whether the target URL had been subject to a redirect. This vulnerability affects Firefox < 103.(CVE-2022-36316)

An attacker could have written a value to the first element in a zero-length JavaScript array. Although the array was zero-length, the value was not written to an invalid memory address. This vulnerability affects Firefox < 104.(CVE-2022-38475)

Service Workers did not detect Private Browsing Mode correctly in all cases, which could have led to Service Workers being written to disk for websites visited in Private Browsing Mode. This would not have persisted them in a state where they would run again, but it would have leaked Private Browsing Mode details to disk. This vulnerability affects Firefox < 107.(CVE-2022-45417)

If the user added a security exception for an invalid TLS certificate, opened an ongoing TLS connection with a server that used that certificate, and then deleted the exception, Firefox would have kept the connection alive, making it seem like the certificate was still trusted. This vulnerability affects Firefox < 107.(CVE-2022-45419)

Mozilla developers and community members Lukas Bernhard, Gabriele Svelto, Randell Jesup, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 107. 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 < 108.(CVE-2022-46879)

Mozilla developers Gabriele Svelto, Yulia Startsev, Andrew McCreight and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 106. 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.<br />Note: This advisory was added on December 13th, 2022 after discovering it was inadvertently left out of the original advisory. The fix was included in the original release of Firefox 107. This vulnerability affects Firefox < 107.(CVE-2022-46883)

Due to URL previews in the network panel of developer tools improperly storing URLs, query parameters could potentially be used to overwrite global objects in privileged code. This vulnerability affects Firefox < 110.(CVE-2023-25731)

The return value from gfx::SourceSurfaceSkia::Map() wasn't being verified which could have potentially lead to a null pointer dereference. This vulnerability affects Firefox < 110.(CVE-2023-25733)

An invalid downcast from nsHTMLDocument to nsIContent could have lead to undefined behavior. This vulnerability affects Firefox < 110.(CVE-2023-25736)

Under certain circumstances, a ServiceWorker's offline cache may have leaked to the file system when using private browsing mode. This vulnerability affects Firefox < 111.(CVE-2023-25750)

When following a redirect to a publicly accessible web extension file, the URL may have been translated to the actual local path, leaking potentially sensitive information. This vulnerability affects Firefox < 111.(CVE-2023-28160)

Memory safety bugs present in Firefox 110. 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 < 111.(CVE-2023-28177)

Multiple race conditions in the font initialization could have led to memory corruption…

In some code patterns the JIT incorrectly optimized switch statements and generated code with out-of-bounds-reads. This vulnerability affects Firefox < 125, Firefox ESR < 115.10, and Thunderbird < 115.10.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 115.10.0 ESR.

Security Fix(es):

• GetBoundName in the JIT returned the wrong object (CVE-2024-3852)

• Out-of-bounds-read after mis-optimized switch statement (CVE-2024-3854)

• Incorrect JITting of arguments led to use-after-free during garbage collection (CVE-2024-3857)

• Permission prompt input delay could expire when not in focus (CVE-2024-2609)

• Integer-overflow led to out-of-bounds-read in the OpenType sanitizer (CVE-2024-3859)

• Potential use-after-free due to AlignedBuffer self-move (CVE-2024-3861)

• Memory safety bug fixed in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10 (CVE-2024-3864)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 115.10.0 ESR.

Security Fix(es):

• GetBoundName in the JIT returned the wrong object (CVE-2024-3852)

• Out-of-bounds-read after mis-optimized switch statement (CVE-2024-3854)

• Incorrect JITting of arguments led to use-after-free during garbage collection (CVE-2024-3857)

• Permission prompt input delay could expire when not in focus (CVE-2024-2609)

• Integer-overflow led to out-of-bounds-read in the OpenType sanitizer (CVE-2024-3859)

• Potential use-after-free due to AlignedBuffer self-move (CVE-2024-3861)

• Memory safety bug fixed in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10 (CVE-2024-3864)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 115.10.0.

Security Fix(es):

• Mozilla: Denial of Service using HTTP/2 CONTINUATION frames (CVE-2024-3302)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Thunderbird is a standalone mail and newsgroup client.

This update upgrades Thunderbird to version 115.10.0.

Security Fix(es):

• Mozilla: Denial of Service using HTTP/2 CONTINUATION frames (CVE-2024-3302)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

• CVE-2024-3854: fix Ion IsDiamondPattern successor-count guard allowing switch terminators (Mozilla bug 1884552)
• CVE-2024-5702: fix use-after-free in nsTransportEventSinkProxy via raw-pointer to smart-pointer refactor (Mozilla bug 1193389)
• CVE-2026-0880: fix integer overflow in Cairo DrawTarget CopyToImageSurface/CreateSubImageForData (Mozilla bug 2005014)

CVE-2024-3852: GetBoundName in the JIT returned the wrong object CVE-2024-3854: Out-of-bounds-read after mis-optimized switch statement CVE-2024-3857: Incorrect JITting of arguments led to use-after-free during garbage collection CVE-2024-2609: Permission prompt input delay could expire when not in focus CVE-2024-3859: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer CVE-2024-3861: Potential use-after-free due to AlignedBuffer self-move CVE-2024-3302: Denial of Service using HTTP/2 CONTINUATION frames CVE-2024-3864: Memory safety bug fixed in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10

CVE-2024-3852: GetBoundName in the JIT returned the wrong object CVE-2024-3854: Out-of-bounds-read after mis-optimized switch statement CVE-2024-3857: Incorrect JITting of arguments led to use-after-free during garbage collection CVE-2024-2609: Permission prompt input delay could expire when not in focus CVE-2024-3859: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer CVE-2024-3861: Potential use-after-free due to AlignedBuffer self-move CVE-2024-3302: Denial of Service using HTTP/2 CONTINUATION frames CVE-2024-3864: Memory safety bug fixed in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10

These are all security issues fixed in the MozillaThunderbird-115.10.1-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the MozillaFirefox-125.0.2-1.1 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the firefox-esr-128.5.1-1.1 package on the GA media of openSUSE Tumbleweed.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 115.10.0 ESR.

Security Fix(es):

• GetBoundName in the JIT returned the wrong object (CVE-2024-3852)

• Out-of-bounds-read after mis-optimized switch statement (CVE-2024-3854)

• Incorrect JITting of arguments led to use-after-free during garbage collection (CVE-2024-3857)

• Permission prompt input delay could expire when not in focus (CVE-2024-2609)

• Integer-overflow led to out-of-bounds-read in the OpenType sanitizer (CVE-2024-3859)

• Potential use-after-free due to AlignedBuffer self-move (CVE-2024-3861)

• Memory safety bug fixed in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10 (CVE-2024-3864)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.

This update upgrades Firefox to version 115.10.0 ESR.

Security Fix(es):

• GetBoundName in the JIT returned the wrong object (CVE-2024-3852)

• Out-of-bounds-read after mis-optimized switch statement (CVE-2024-3854)

• Incorrect JITting of arguments led to use-after-free during garbage collection (CVE-2024-3857)

• Permission prompt input delay could expire when not in focus (CVE-2024-2609)

• Integer-overflow led to out-of-bounds-read in the OpenType sanitizer (CVE-2024-3859)

• Potential use-after-free due to AlignedBuffer self-move (CVE-2024-3861)

• Memory safety bug fixed in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10 (CVE-2024-3864)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

This update for MozillaFirefox fixes the following issues:

Update to Firefox Extended Support Release 115.10.0 ESR (MSFA 2024-19) (bsc#1222535):

• CVE-2024-3852: GetBoundName in the JIT returned the wrong object
• CVE-2024-3854: Out-of-bounds-read after mis-optimized switch statement
• CVE-2024-3857: Incorrect JITting of arguments led to use-after-free during garbage collection
• CVE-2024-2609: Permission prompt input delay could expire when not in focus
• CVE-2024-3859: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer
• CVE-2024-3861: Potential use-after-free due to AlignedBuffer self-move
• CVE-2024-3863: Download Protections were bypassed by .xrm-ms files on Windows
• CVE-2024-3302: Denial of Service using HTTP/2 CONTINUATION frames
• CVE-2024-3864: Memory safety bug fixed in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10

This update for MozillaFirefox fixes the following issues:

Update to Firefox Extended Support Release 115.10.0 ESR (MSFA 2024-19) (bsc#1222535):

• CVE-2024-3852: GetBoundName in the JIT returned the wrong object
• CVE-2024-3854: Out-of-bounds-read after mis-optimized switch statement
• CVE-2024-3857: Incorrect JITting of arguments led to use-after-free during garbage collection
• CVE-2024-2609: Permission prompt input delay could expire when not in focus
• CVE-2024-3859: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer
• CVE-2024-3861: Potential use-after-free due to AlignedBuffer self-move
• CVE-2024-3863: Download Protections were bypassed by .xrm-ms files on Windows
• CVE-2024-3302: Denial of Service using HTTP/2 CONTINUATION frames
• CVE-2024-3864: Memory safety bug fixed in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10

This update for MozillaThunderbird fixes the following issues:

Update to Mozilla Thunderbird 115.10.1

Security fixes (MFSA 2024-20) (bsc#1222535):

• CVE-2024-3852: GetBoundName in the JIT returned the wrong object (bmo#1883542)
• CVE-2024-3854: Out-of-bounds-read after mis-optimized switch statement (bmo#1884552)
• CVE-2024-3857: Incorrect JITting of arguments led to use-after-free during garbage collection (bmo#1886683)
• CVE-2024-2609: Permission prompt input delay could expire when not in focus (bmo#1866100)
• CVE-2024-3859: Integer-overflow led to out-of-bounds-read in the OpenType sanitizer (bmo#1874489)
• CVE-2024-3861: Potential use-after-free due to AlignedBuffer self-move (bmo#1883158)
• CVE-2024-3863: Download Protections were bypassed by .xrm-ms files on Windows (bmo#1885855)
• CVE-2024-3302: Denial of Service using HTTP/2 CONTINUATION frames (bmo#1881183, https://kb.cert.org/vuls/id/421644)
• CVE-2024-3864: Memory safety bug fixed in Firefox 125, Firefox ESR 115.10, and Thunderbird 115.10 (bmo#1888333)

Other Fixes:

• fixed: Thunderbird processes did not exit cleanly; user intervention was required via task manager (bmo#1891889)
• unresolved: After changing password on an IMAP account, the account could become locked due to too many failed login attempts (bmo#1862111)
• fixed: Creating a tag in General Settings with a number as the tag name did not work (bmo#1881124)
• fixed: Quick Filter button selections did not persist after restart (bmo#1847265)
• fixed: Collapsing and expanding message list headers sometimes caused header to scroll out of view (bmo#1862197)
• fixed: Single message with no children inside a parent thread sometimes displayed incorrectly as a thread with a duplicate of itself as its child (bmo#1427546)
• fixed: 'Get selected messages' menu items did not work (bmo#1867091)
• fixed: 'Download and Sync Messages' dialog was too short when using Russian locale, obscuring OK button (bmo#1881795)
• fixed: After changing password on an IMAP account, the account could become locked due to too many failed login attempts (bmo#1862111)
• fixed: Retrieving multiline POP3 message from server failed if message chunk ended in newline instead of carriage return and newline (bmo#1883760)
• fixed: IMAP, POP3, and SMTP Exchange autoconfiguration did not support encryption configuration (bmo#1876992)
• fixed: Non-empty address book search bar interfered with displaying/editing contacts (bmo#1833031)
• fixed: Deleting attendees from 'Invite Attendees' view removed attendees from view, but not from invite (bmo#1874450)
• fixed: Splitter arrow between task list and task description did not behave as expected (bmo#1889562)
• fixed: Performance improvements and code cleanup (bmo#1878257,bmo#1883550)
• fixed: Security fixes
• unresolved: Thunderbird processes did not exit cleanly; user intervention was required via task manager (bmo#1891889)

This update for MozillaFirefox fixes the following issues:

Update to version 115.11.0 ESR (bsc#1224056):

• CVE-2024-4367: Arbitrary JavaScript execution in PDF.js
• CVE-2024-4767: IndexedDB files retained in private browsing mode
• CVE-2024-4768: Potential permissions request bypass via clickjacking
• CVE-2024-4769: Cross-origin responses could be distinguished between script and non-script content-types
• CVE-2024-4770: Use-after-free could occur when printing to PDF
• CVE-2024-4777: Memory safety bugs fixed in Firefox 126, Firefox ESR 115.11, and Thunderbird 115.11

This update for MozillaFirefox fixes the following issues:

Update to version 115.11.0 ESR (bsc#1224056):

• CVE-2024-4367: Arbitrary JavaScript execution in PDF.js
• CVE-2024-4767: IndexedDB files retained in private browsing mode
• CVE-2024-4768: Potential permissions request bypass via clickjacking
• CVE-2024-4769: Cross-origin responses could be distinguished between script and non-script content-types
• CVE-2024-4770: Use-after-free could occur when printing to PDF
• CVE-2024-4777: Memory safety bugs fixed in Firefox 126, Firefox ESR 115.11, and Thunderbird 115.11

Multiple security issues were discovered in Firefox. If a user were tricked into opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information across domains, or execute arbitrary code. (CVE-2024-3852, CVE-2024-3864, CVE-2024-3865)

Bartek Nowotarski discovered that Firefox did not properly limit HTTP/2 CONTINUATION frames. An attacker could potentially exploit this issue to cause a denial of service. (CVE-2024-3302)

Gary Kwong discovered that Firefox did not properly manage memory when running garbage collection during realm initialization. An attacker could potentially exploit this issue to cause a denial of service, or execute arbitrary code. (CVE-2024-3853)

Lukas Bernhard discovered that Firefox did not properly manage memory during JIT optimisations, leading to an out-of-bounds read vulnerability. An attacker could possibly use this issue to cause a denial of service or expose sensitive information. (CVE-2024-3854, CVE-2024-3855)

Nan Wang discovered that Firefox did not properly manage memory during WASM garbage collection. An attacker could potentially exploit this issue to cause a denial of service, or execute arbitrary code. (CVE-2024-3856)

Lukas Bernhard discovered that Firefox did not properly manage memory when handling JIT created code during garbage collection. An attacker could potentially exploit this issue to cause a denial of service, or execute arbitrary code. (CVE-2024-3857)

Lukas Bernhard discovered that Firefox did not properly manage memory when tracing in JIT. An attacker could potentially exploit this issue to cause a denial of service. (CVE-2024-3858)

Ronald Crane discovered that Firefox did not properly manage memory in the OpenType sanitizer on 32-bit devices, leading to an out-of-bounds read vulnerability. An attacker could possibly use this issue to cause a denial of service or expose sensitive information. (CVE-2024-3859)

Garry Kwong discovered that Firefox did not properly manage memory when tracing empty shape lists in JIT. An attacker could potentially exploit this issue to cause a denial of service. (CVE-2024-3860)

Ronald Crane discovered that Firefox did not properly manage memory when handling an AlignedBuffer. An attacker could potentially exploit this issue to cause denial of service, or execute arbitrary code. (CVE-2024-3861)

Ronald Crane discovered that Firefox did not properly manage memory when handling code in MarkStack. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2024-3862)

Multiple security issues were discovered in Thunderbird. If a user were tricked into opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, obtain sensitive information, bypass security restrictions, cross-site tracing, or execute arbitrary code. (CVE-2024-2609, CVE-2024-3852, CVE-2024-3864)

Bartek Nowotarski discovered that Thunderbird did not properly limit HTTP/2 CONTINUATION frames. An attacker could potentially exploit this issue to cause a denial of service. (CVE-2024-3302)

Lukas Bernhard discovered that Thunderbird did not properly manage memory during JIT optimisations, leading to an out-of-bounds read vulnerability. An attacker could possibly use this issue to cause a denial of service or expose sensitive information. (CVE-2024-3854)

Lukas Bernhard discovered that Thunderbird did not properly manage memory when handling JIT created code during garbage collection. An attacker could potentially exploit this issue to cause a denial of service, or execute arbitrary code. (CVE-2024-3857)

Ronald Crane discovered that Thunderbird did not properly manage memory in the OpenType sanitizer on 32-bit devices, leading to an out-of-bounds read vulnerability. An attacker could possibly use this issue to cause a denial of service or expose sensitive information. (CVE-2024-3859)

Ronald Crane discovered that Thunderbird did not properly manage memory when handling an AlignedBuffer. An attacker could potentially exploit this issue to cause denial of service, or execute arbitrary code. (CVE-2024-3861)