Debian Thunderbird vulnerabilities

CVE-2025-14322 [HIGH] CVE-2025-14322: firefox - Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL... Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 146, Firefox ESR < 115.31, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6. Scope: local sid: resolved (fixed in 146.0-1)

CVE-2025-0241 [HIGH] CVE-2025-0241: firefox - When segmenting specially crafted text, segmentation would corrupt memory leadin... When segmenting specially crafted text, segmentation would corrupt memory leading to a potentially exploitable crash. This vulnerability affects Firefox < 134, Firefox ESR < 128.6, Thunderbird < 134, and Thunderbird < 128.6. Scope: local sid: resolved (fixed in 134.0-1)

CVE-2018-12362 [HIGH] CVE-2018-12362: firefox - An integer overflow can occur during graphics operations done by the Supplementa... An integer overflow can occur during graphics operations done by the Supplemental Streaming SIMD Extensions 3 (SSSE3) scaler, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61. Scope: local sid: resolved (fixed in 61.0-1)

CVE-2024-10466 [HIGH] CVE-2024-10466: firefox - By sending a specially crafted push message, a remote server could have hung the... By sending a specially crafted push message, a remote server could have hung the parent process, causing the browser to become unresponsive. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Thunderbird < 128.4, and Thunderbird < 132. Scope: local sid: resolved (fixed in 132.0-1)

CVE-2026-4686 [HIGH] CVE-2026-4686: firefox - Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerab... Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9. Scope: local sid: resolved (fixed in 149.0-1)

CVE-2026-4685 [HIGH] CVE-2026-4685: firefox - Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerab... Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9. Scope: local sid: resolved (fixed in 149.0-1)

CVE-2023-3417 [HIGH] CVE-2023-3417: thunderbird - Thunderbird allowed the Text Direction Override Unicode Character in filenames. ... Thunderbird allowed the Text Direction Override Unicode Character in filenames. An email attachment could be incorrectly shown as being a document file, while in fact it was an executable file. Newer versions of Thunderbird will strip the character and show the correct file extension. This vulnerability affects Thunderbird < 115.0.1 and Thunderbird < 102.13.1. Sco

CVE-2026-4707 [HIGH] CVE-2026-4707: firefox - Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerab... Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9. Scope: local sid: resolved (fixed in 149.0-1)

CVE-2018-12360 [HIGH] CVE-2018-12360: firefox - A use-after-free vulnerability can occur when deleting an input element during a... A use-after-free vulnerability can occur when deleting an input element during a mutation event handler triggered by focusing that element. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61. Scope: local sid: resolved (fixed in 61.0-1)

CVE-2026-4684 [HIGH] CVE-2026-4684: firefox - Race condition, use-after-free in the Graphics: WebRender component. This vulner... Race condition, use-after-free in the Graphics: WebRender component. This vulnerability affects Firefox < 149, Firefox ESR < 115.34, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9. Scope: local sid: resolved (fixed in 149.0-1)

CVE-2025-14327 [HIGH] CVE-2025-14327: firefox - Spoofing issue in the Downloads Panel component. This vulnerability affects Fire... Spoofing issue in the Downloads Panel component. This vulnerability affects Firefox < 146, Thunderbird < 146, Firefox ESR < 140.7, and Thunderbird < 140.7. Scope: local sid: resolved (fixed in 146.0-1)

CVE-2020-12417 [HIGH] CVE-2020-12417: firefox - Due to confusion about ValueTags on JavaScript Objects, an object may pass throu... Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in memory corruption and a potentially exploitable crash. *Note: this issue only affects Firefox on ARM64 platforms.* This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0. Scope: local sid: resolved (fixed in 78.0-1)

CVE-2025-14325 [HIGH] CVE-2025-14325: firefox - JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability a... JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability affects Firefox < 146, Firefox ESR < 140.6, Thunderbird < 146, and Thunderbird < 140.6. Scope: local sid: resolved (fixed in 146.0-1)

CVE-2020-6806 [HIGH] CVE-2020-6806: firefox - By carefully crafting promise resolutions, it was possible to cause an out-of-bo... By carefully crafting promise resolutions, it was possible to cause an out-of-bounds read off the end of an array resized during script execution. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.6, Firefox < 74, Firefox < ESR68.6, and Firefox ESR < 68.6. Scope: local sid: resolved (fixed in 74.0

CVE-2018-12389 [HIGH] CVE-2018-12389: firefox-esr - Mozilla developers and community members reported memory safety bugs present in ... Mozilla developers and community members reported memory safety bugs present in Firefox ESR 60.2. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 60.3 and Thunderbird < 60.3. Scope: local bookworm: resolved (fixed i

CVE-2019-11752 [HIGH] CVE-2019-11752: firefox - It is possible to delete an IndexedDB key value and subsequently try to extract ... It is possible to delete an IndexedDB key value and subsequently try to extract it during conversion. This results in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1. Scope: local sid: resolved (fixed in 69.0-1)

CVE-2017-7846 [HIGH] CVE-2017-7846: thunderbird - It is possible to execute JavaScript in the parsed RSS feed when RSS feed is vie... It is possible to execute JavaScript in the parsed RSS feed when RSS feed is viewed as a website, e.g. via "View -> Feed article -> Website" or in the standard format of "View -> Feed article -> default format". This vulnerability affects Thunderbird < 52.5.2. Scope: local bookworm: resolved (fixed in 1:52.5.2-1) bullseye: resolved (fixed in 1:52.5.2-1) forky: res

CVE-2019-17012 [HIGH] CVE-2019-17012: firefox - Mozilla developers reported memory safety bugs present in Firefox 70 and Firefox... Mozilla developers reported memory safety bugs present in Firefox 70 and Firefox ESR 68.2. 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 < 68.3, Firefox ESR < 68.3, and Firefox < 71. Scope: local sid: resolved (fixed

CVE-2020-12420 [HIGH] CVE-2020-12420: firefox - When trying to connect to a STUN server, a race condition could have caused a us... When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0. Scope: local sid: resolved (fixed in 78.0-1)

CVE-2019-11746 [HIGH] CVE-2019-11746: firefox - A use-after-free vulnerability can occur while manipulating video elements if th... A use-after-free vulnerability can occur while manipulating video elements if the body is freed while still in use. This results in a potentially exploitable crash. This vulnerability affects Firefox < 69, Thunderbird < 68.1, Thunderbird < 60.9, Firefox ESR < 60.9, and Firefox ESR < 68.1. Scope: local sid: resolved (fixed in 69.0-1)