Mozilla Thunderbird vulnerabilities

CVE-2023-6861 [HIGH] CWE-787 CVE-2023-6861: The `nsWindow::PickerOpen(void)` method was susceptible to a heap buffer overflow when running in he The `nsWindow::PickerOpen(void)` method was susceptible to a heap buffer overflow when running in headless mode. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

CVE-2023-6857 [MEDIUM] CWE-362 CVE-2023-6857: When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be sma When resolving a symlink, a race may occur where the buffer passed to `readlink` may actually be smaller than necessary. *This bug only affects Firefox on Unix-based operating systems (Android, Linux, MacOS). Windows is unaffected.* This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

CVE-2023-50762 [MEDIUM] CVE-2023-50762: When processing a PGP/MIME payload that contains digitally signed text, the first paragraph of the t When processing a PGP/MIME payload that contains digitally signed text, the first paragraph of the text was never shown to the user. This is because the text was interpreted as a MIME message and the first paragraph was always treated as an email header section. A digitally signed text from a different context, such as a signed GIT commit, could be used to

CVE-2023-6860 [MEDIUM] CVE-2023-6860: The `VideoBridge` allowed any content process to use textures produced by remote decoders. This cou The `VideoBridge` allowed any content process to use textures produced by remote decoders. This could be abused to escape the sandbox. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.

CVE-2023-50761 [MEDIUM] CVE-2023-50761: The signature of a digitally signed S/MIME email message may optionally specify the signature creati The signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time. If present, Thunderbird did not compare the signature creation date with the message date and time, and displayed a valid signature despite a date or time mismatch. This could be used to give recipients the impression that a message was sent

CVE-2023-6208 [HIGH] CVE-2023-6208: When using X11, text selected by the page using the Selection API was erroneously copied into the pr When using X11, text selected by the page using the Selection API was erroneously copied into the primary selection, a temporary storage not unlike the clipboard. *This bug only affects Firefox on X11. Other systems are unaffected.* This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVE-2023-6212 [HIGH] CWE-787 CVE-2023-6212: Memory safety bugs present in Firefox 119, Firefox ESR 115.4, and Thunderbird 115.4. Some of these b Memory safety bugs present in Firefox 119, Firefox ESR 115.4, and Thunderbird 115.4. 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 < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVE-2023-6207 [HIGH] CWE-416 CVE-2023-6207: Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Fi Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVE-2023-6206 [MEDIUM] CWE-1021 CVE-2023-6206: The black fade animation when exiting fullscreen is roughly the length of the anti-clickjacking dela The black fade animation when exiting fullscreen is roughly the length of the anti-clickjacking delay on permission prompts. It was possible to use this fact to surprise users by luring them to click where the permission grant button would be about to appear. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVE-2023-6204 [MEDIUM] CWE-125 CVE-2023-6204: On some systems—depending on the graphics settings and drivers—it was possible to force an out-of-bo On some systems—depending on the graphics settings and drivers—it was possible to force an out-of-bounds read and leak memory data into the images created on the canvas element. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVE-2023-6205 [MEDIUM] CWE-416 CVE-2023-6205: It was possible to cause the use of a MessagePort after it had already been freed, which could poten It was possible to cause the use of a MessagePort after it had already been freed, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVE-2023-6209 [MEDIUM] CWE-22 CVE-2023-6209: Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/../" part Relative URLs starting with three slashes were incorrectly parsed, and a path-traversal "/../" part in the path could be used to override the specified host. This could contribute to security problems in web sites. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

CVE-2023-5730 [CRITICAL] CWE-787 CVE-2023-5730: Memory safety bugs present in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3. Some of these b Memory safety bugs present in Firefox 118, Firefox ESR 115.3, and Thunderbird 115.3. 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 < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

CVE-2023-5724 [HIGH] CWE-400 CVE-2023-5724: Drivers are not always robust to extremely large draw calls and in some cases this scenario could ha Drivers are not always robust to extremely large draw calls and in some cases this scenario could have led to a crash. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

CVE-2023-5728 [HIGH] CWE-416 CVE-2023-5728: During garbage collection extra operations were performed on a object that should not be. This could During garbage collection extra operations were performed on a object that should not be. This could have led to a potentially exploitable crash. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

CVE-2023-5725 [MEDIUM] CVE-2023-5725: A malicious installed WebExtension could open arbitrary URLs, which under the right circumstance cou A malicious installed WebExtension could open arbitrary URLs, which under the right circumstance could be leveraged to collect sensitive user data. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

CVE-2023-5721 [MEDIUM] CWE-1021 CVE-2023-5721: It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally It was possible for certain browser prompts and dialogs to be activated or dismissed unintentionally by the user due to an insufficient activation-delay. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

CVE-2023-5727 [MEDIUM] CVE-2023-5727: The executable file warning was not presented when downloading .msix, .msixbundle, .appx, and .appxb The executable file warning was not presented when downloading .msix, .msixbundle, .appx, and .appxbundle files, which can run commands on a user's computer. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

CVE-2023-5732 [MEDIUM] CVE-2023-5732: An attacker could have created a malicious link using bidirectional characters to spoof the location An attacker could have created a malicious link using bidirectional characters to spoof the location in the address bar when visited. This vulnerability affects Firefox < 117, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

CVE-2023-5726 [MEDIUM] CVE-2023-5726: A website could have obscured the full screen notification by using the file open dialog. This could A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks. *Note: This issue only affected macOS operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.