Debian Firefox-Esr vulnerabilities

CVE-2018-5096 [CRITICAL] CVE-2018-5096: firefox-esr - A use-after-free vulnerability can occur while editing events in form elements o... A use-after-free vulnerability can occur while editing events in form elements on a page, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 52.6 and Thunderbird < 52.6. Scope: local bookworm: resolved (fixed in 52.6.0esr-1) bullseye: resolved (fixed in 52.6.0esr-1) forky: resolved (fixed in 52.6.0esr-1) sid: resolved (fixed

CVE-2020-15683 [CRITICAL] CVE-2020-15683: firefox - Mozilla developers and community members reported memory safety bugs present in ... Mozilla developers and community members reported memory safety bugs present in Firefox 81 and Firefox ESR 78.3. 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 ESR < 78.4, Firefox < 82, and Thunderbird < 78.4. Scope: l

CVE-2020-12395 [CRITICAL] CVE-2020-12395: firefox - Mozilla developers and community members reported memory safety bugs present in ... Mozilla developers and community members reported memory safety bugs present in Firefox 75 and Firefox ESR 68.7. 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 ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0. Scope:

CVE-2017-7749 [CRITICAL] CVE-2017-7749: firefox - A use-after-free vulnerability when using an incorrect URL during the reloading ... A use-after-free vulnerability when using an incorrect URL during the reloading of a docshell. This results in a potentially exploitable crash. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2. Scope: local sid: resolved (fixed in 54.0-1)

CVE-2026-4718 [HIGH] CVE-2026-4718: firefox - Undefined behavior in the WebRTC: Signaling component. This vulnerability affect... Undefined behavior in the WebRTC: Signaling component. This vulnerability affects Firefox < 149, Firefox ESR < 140.9, Thunderbird < 149, and Thunderbird < 140.9. Scope: local sid: resolved (fixed in 149.0-1)

CVE-2026-0877 [HIGH] CVE-2026-0877: firefox - Mitigation bypass in the DOM: Security component. This vulnerability affects Fir... Mitigation bypass in the DOM: Security component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7. Scope: local sid: resolved (fixed in 147.0-1)

CVE-2025-13018 [HIGH] CVE-2025-13018: firefox - Mitigation bypass in the DOM: Security component. This vulnerability affects Fir... Mitigation bypass in the DOM: Security component. This vulnerability affects Firefox < 145, Firefox ESR < 140.5, Thunderbird < 145, and Thunderbird < 140.5. Scope: local sid: resolved (fixed in 145.0-1)

CVE-2019-9800 [CRITICAL] CVE-2019-9800: firefox - Mozilla developers and community members reported memory safety bugs present in ... Mozilla developers and community members reported memory safety bugs present in Firefox 66, Firefox ESR 60.6, and Thunderbird 60.6. 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 Thunderbird < 60.7, Firefox < 67, and Firefox ESR <

CVE-2006-6504 [CRITICAL] CVE-2006-6504: firefox - Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, and SeaMonkey before 1... Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, and SeaMonkey before 1.0.7 allows remote attackers to execute arbitrary code by appending an SVG comment DOM node to another type of document, which triggers memory corruption. Scope: local sid: resolved (fixed in 45.0-1)

CVE-2019-11691 [CRITICAL] CVE-2019-11691: firefox - A use-after-free vulnerability can occur when working with XMLHttpRequest (XHR) ... A use-after-free vulnerability can occur when working with XMLHttpRequest (XHR) in an event loop, causing the XHR main thread to be called after it has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7. Scope: local sid: resolved (fixed in 67.0-2)

CVE-2016-2796 [HIGH] CVE-2016-2796: firefox - Heap-based buffer overflow in the graphite2::vm::Machine::Code::Code function in... Heap-based buffer overflow in the graphite2::vm::Machine::Code::Code function in Graphite 2 before 1.3.6, as used in Mozilla Firefox before 45.0 and Firefox ESR 38.x before 38.7, allows remote attackers to cause a denial of service or possibly have unspecified other impact via a crafted Graphite smart font. Scope: local sid: resolved (fixed in 45.0-1)

CVE-2021-4129 [CRITICAL] CVE-2021-4129: firefox - Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele ... Mozilla developers and community members Julian Hector, Randell Jesup, Gabriele Svelto, Tyson Smith, Christian Holler, and Masayuki Nakano reported memory safety bugs present in Firefox 94. 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

CVE-2022-29917 [CRITICAL] CVE-2022-29917: firefox - Mozilla developers Andrew McCreight, Gabriele Svelto, Tom Ritter and the Mozilla... Mozilla developers Andrew McCreight, Gabriele Svelto, Tom Ritter and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 99 and Firefox ESR 91.8. 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 <

CVE-2017-5444 [HIGH] CVE-2017-5444: firefox - A buffer overflow vulnerability while parsing "application/http-index-format" fo... A buffer overflow vulnerability while parsing "application/http-index-format" format content when the header contains improperly formatted data. This allows for an out-of-bounds read of data from memory. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53. Scope: local sid: resolved (fixed in 52.0.1-1)

CVE-2024-11704 [CRITICAL] CVE-2024-11704: firefox - A double-free issue could have occurred in `sec_pkcs7_decoder_start_decrypt()` w... A double-free issue could have occurred in `sec_pkcs7_decoder_start_decrypt()` when handling an error path. Under specific conditions, the same symmetric key could have been freed twice, potentially leading to memory corruption. This vulnerability affects Firefox < 133, Thunderbird < 133, Firefox ESR < 128.7, and Thunderbird < 128.7. Scope: local sid: resolved (

CVE-2025-1937 [HIGH] CVE-2025-1937: firefox - Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, ... Memory safety bugs present in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, and Thunderbird 128.7. 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 < 136, Firefox ESR < 115.21, Firefox ESR < 128.8, Thund

CVE-2024-6604 [HIGH] CVE-2024-6604: firefox - Memory safety bugs present in Firefox 127, Firefox ESR 115.12, and Thunderbird 1... Memory safety bugs present in Firefox 127, Firefox ESR 115.12, and Thunderbird 115.12. 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 < 128, Firefox ESR < 115.13, Thunderbird < 115.13, and Thunderbird < 128. Scope: local sid

CVE-2006-5633 [MEDIUM] CVE-2006-5633: firefox - Firefox 1.5.0.7 and 2.0, and Seamonkey 1.1b, allows remote attackers to cause a ... Firefox 1.5.0.7 and 2.0, and Seamonkey 1.1b, allows remote attackers to cause a denial of service (crash) by creating a range object using createRange, calling selectNode on a DocType node (DOCUMENT_TYPE_NODE), then calling createContextualFragment on the range, which triggers a null dereference. NOTE: the original Bugtraq post mentioned that code execution was poss

CVE-2016-1959 [HIGH] CVE-2016-1959: firefox - The ServiceWorkerManager class in Mozilla Firefox before 45.0 allows remote atta... The ServiceWorkerManager class in Mozilla Firefox before 45.0 allows remote attackers to execute arbitrary code or cause a denial of service (out-of-bounds read and memory corruption) via unspecified use of the Clients API. Scope: local sid: resolved (fixed in 45.0-1)

CVE-2016-9066 [HIGH] CVE-2016-9066: firefox - A buffer overflow resulting in a potentially exploitable crash due to memory all... A buffer overflow resulting in a potentially exploitable crash due to memory allocation issues when handling large amounts of incoming data. This vulnerability affects Thunderbird < 45.5, Firefox ESR < 45.5, and Firefox < 50. Scope: local sid: resolved (fixed in 50.0-1)