Debian Firefox vulnerabilities

CVE-2020-6815 [CRITICAL] CVE-2020-6815: firefox - Mozilla developers reported memory safety and script safety bugs present in Fire... Mozilla developers reported memory safety and script safety bugs present in Firefox 73. Some of these bugs showed evidence of memory corruption or escalation of privilege and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox < 74. Scope: local sid: resolved (fixed in 74.0-1)

CVE-2022-31736 [CRITICAL] CVE-2022-31736: firefox - A malicious website could have learned the size of a cross-origin resource that ... A malicious website could have learned the size of a cross-origin resource that supported Range requests. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10. Scope: local sid: resolved (fixed in 101.0-1)

CVE-2018-5104 [CRITICAL] CVE-2018-5104: firefox - A use-after-free vulnerability can occur during font face manipulation when a fo... A use-after-free vulnerability can occur during font face manipulation when a font face is freed while still in use, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.6, Firefox ESR < 52.6, and Firefox < 58. Scope: local sid: resolved (fixed in 58.0-1)

CVE-2023-5172 [CRITICAL] CVE-2023-5172: firefox - A hashtable in the Ion Engine could have been mutated while there was a live in... A hashtable in the Ion Engine could have been mutated while there was a live interior reference, leading to a potential use-after-free and exploitable crash. This vulnerability affects Firefox < 118. Scope: local sid: resolved (fixed in 118.0-1)

CVE-2022-31737 [CRITICAL] CVE-2022-31737: firefox - A malicious webpage could have caused an out-of-bounds write in WebGL, leading t... A malicious webpage could have caused an out-of-bounds write in WebGL, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10. Scope: local sid: resolved (fixed in 101.0-1)

CVE-2023-4050 [HIGH] CVE-2023-4050: firefox - In some cases, an untrusted input stream was copied to a stack buffer without ch... In some cases, an untrusted input stream was copied to a stack buffer without checking its size. This resulted in a potentially exploitable crash which could have led to a sandbox escape. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1. Scope: local sid: resolved (fixed in 116.0-1)

CVE-2016-5259 [HIGH] CVE-2016-5259: firefox - Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Moz... Use-after-free vulnerability in the CanonicalizeXPCOMParticipant function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code via a script that closes its own Service Worker within a nested sync event loop. Scope: local sid: resolved (fixed in 48.0-1)

CVE-2016-5252 [HIGH] CVE-2016-5252: firefox - Stack-based buffer underflow in the mozilla::gfx::BasePoint4d function in Mozill... Stack-based buffer underflow in the mozilla::gfx::BasePoint4d function in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code via crafted two-dimensional graphics data that is mishandled during clipping-region calculations. Scope: local sid: resolved (fixed in 48.0-1)

CVE-2016-2828 [HIGH] CVE-2016-2828: firefox - Use-after-free vulnerability in Mozilla Firefox before 47.0 and Firefox ESR 45.x... Use-after-free vulnerability in Mozilla Firefox before 47.0 and Firefox ESR 45.x before 45.2 allows remote attackers to execute arbitrary code via WebGL content that triggers texture access after destruction of the texture's recycle pool. Scope: local sid: resolved (fixed in 47.0-1)

CVE-2016-1973 [HIGH] CVE-2016-1973: firefox - Race condition in the GetStaticInstance function in the WebRTC implementation in... Race condition in the GetStaticInstance function in the WebRTC implementation in Mozilla Firefox before 45.0 might allow remote attackers to execute arbitrary code or cause a denial of service (use-after-free) via unspecified vectors. Scope: local sid: resolved (fixed in 45.0-1)

CVE-2025-8044 [CRITICAL] CVE-2025-8044: firefox - Memory safety bugs present in Firefox 140 and Thunderbird 140. Some of these bug... Memory safety bugs present in Firefox 140 and Thunderbird 140. 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 < 141 and Thunderbird < 141. Scope: local sid: resolved (fixed in 141.0-1)

CVE-2025-11709 [CRITICAL] CVE-2025-11709: firefox - A compromised web process was able to trigger out of bounds reads and writes in ... A compromised web process was able to trigger out of bounds reads and writes in a more privileged process using manipulated WebGL textures. This vulnerability affects Firefox < 144, Firefox ESR < 115.29, Firefox ESR < 140.4, Thunderbird < 144, and Thunderbird < 140.4. Scope: local sid: resolved (fixed in 144.0-1)

CVE-2025-8038 [CRITICAL] CVE-2025-8038: firefox - Thunderbird ignored paths when checking the validity of navigations in a frame. ... Thunderbird ignored paths when checking the validity of navigations in a frame. This vulnerability affects Firefox < 141, Firefox ESR < 140.1, Thunderbird < 141, and Thunderbird < 140.1. Scope: local sid: resolved (fixed in 141.0-1)

CVE-2019-11730 [MEDIUM] CVE-2019-11730: firefox - A vulnerability exists where if a user opens a locally saved HTML file, this fil... A vulnerability exists where if a user opens a locally saved HTML file, this file can use file: URIs to access other files in the same directory or sub-directories if the names are known or guessed. The Fetch API can then be used to read the contents of any files stored in these directories and they may uploaded to a server. It was demonstrated that in combination

CVE-2019-17017 [HIGH] CVE-2019-17017: firefox - Due to a missing case handling object types, a type confusion vulnerability coul... Due to a missing case handling object types, a type confusion vulnerability could occur, resulting in a crash. We presume that with enough effort that it could be exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72. Scope: local sid: resolved (fixed in 72.0-1)

CVE-2021-43537 [HIGH] CVE-2021-43537: firefox - An incorrect type conversion of sizes from 64bit to 32bit integers allowed an at... An incorrect type conversion of sizes from 64bit to 32bit integers allowed an attacker to corrupt memory leading to a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. Scope: local sid: resolved (fixed in 95.0-1)

CVE-2017-7798 [HIGH] CVE-2017-7798: firefox - The Developer Tools feature suffers from a XUL injection vulnerability due to im... The Developer Tools feature suffers from a XUL injection vulnerability due to improper sanitization of the web page source code. In the worst case, this could allow arbitrary code execution when opening a malicious page with the style editor tool. This vulnerability affects Firefox ESR < 52.3 and Firefox < 55. Scope: local sid: resolved (fixed in 55.0-1)

CVE-2021-43539 [HIGH] CVE-2021-43539: firefox - Failure to correctly record the location of live pointers across wasm instance c... Failure to correctly record the location of live pointers across wasm instance calls resulted in a GC occurring within the call not tracing those live pointers. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95. Scope: local sid: resolved (fixed in

CVE-2019-11759 [HIGH] CVE-2019-11759: firefox - An attacker could have caused 4 bytes of HMAC output to be written past the end ... An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2. Scope: local sid: resolved (fixed in 70.0-1)

CVE-2023-6858 [HIGH] CVE-2023-6858: firefox - Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to ins... Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121. Scope: local sid: resolved (fixed in 121.0-1)