Debian Firefox vulnerabilities

CVE-2025-10527 [HIGH] CVE-2025-10527: firefox - Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This v... Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability affects Firefox < 143, Firefox ESR < 140.3, Thunderbird < 143, and Thunderbird < 140.3. Scope: local sid: resolved (fixed in 143.0-1)

CVE-2018-18497 [MEDIUM] CVE-2018-18497: firefox - Limitations on the URIs allowed to WebExtensions by the browser.windows.create A... Limitations on the URIs allowed to WebExtensions by the browser.windows.create API can be bypassed when a pipe in the URL field is used within the extension to load multiple pages as a single argument. This could allow a malicious WebExtension to open privileged about: or file: locations. This vulnerability affects Firefox < 64. Scope: local sid: resolved (fixed i

CVE-2020-26976 [MEDIUM] CVE-2020-26976: firefox - When a HTTPS pages was embedded in a HTTP page, and there was a service worker r... When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84. Scope: local sid: resolved (fixed in 84.0-1)

CVE-2016-5282 [MEDIUM] CVE-2016-5282: firefox - Mozilla Firefox before 49.0 does not properly restrict the scheme in favicon req... Mozilla Firefox before 49.0 does not properly restrict the scheme in favicon requests, which might allow remote attackers to obtain sensitive information via unspecified vectors, as demonstrated by a jar: URL for a favicon resource. Scope: local sid: resolved (fixed in 49.0-1)

CVE-2020-15655 [MEDIUM] CVE-2020-15655: firefox - A redirected HTTP request which is observed or modified through a web extension ... A redirected HTTP request which is observed or modified through a web extension could bypass existing CORS checks, leading to potential disclosure of cross-origin information. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1. Scope: local sid: resolved (fixed in 79.0-1)

CVE-2018-12402 [MEDIUM] CVE-2018-12402: firefox - The internal WebBrowserPersist code does not use correct origin context for a re... The internal WebBrowserPersist code does not use correct origin context for a resource being saved. This manifests when sub-resources are loaded as part of "Save Page As..." functionality. For example, a malicious page could recover a visitor's Windows username and NTLM hash by including resources otherwise unreachable to the malicious page, if they can convince t

CVE-2022-40959 [MEDIUM] CVE-2022-40959: firefox - During iframe navigation, certain pages did not have their FeaturePolicy fully i... During iframe navigation, certain pages did not have their FeaturePolicy fully initialized leading to a bypass that leaked device permissions into untrusted subdocuments. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105. Scope: local sid: resolved (fixed in 105.0-1)

CVE-2020-15653 [MEDIUM] CVE-2020-15653: firefox - An iframe sandbox element with the allow-popups flag could be bypassed when usin... An iframe sandbox element with the allow-popups flag could be bypassed when using noopener links. This could have led to security issues for websites relying on sandbox configurations that allowed popups and hosted arbitrary content. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1. Scope: local sid: resolved (fixed in 79.0-1)

CVE-2020-15664 [MEDIUM] CVE-2020-15664: firefox - By holding a reference to the eval() function from an about:blank window, a mali... By holding a reference to the eval() function from an about:blank window, a malicious webpage could have gained access to the InstallTrigger object which would allow them to prompt the user to install an extension. Combined with user confusion, this could result in an unintended or malicious extension being installed. This vulnerability affects Firefox < 80, Thund

CVE-2022-40957 [MEDIUM] CVE-2022-40957: firefox - Inconsistent data in instruction and data cache when creating wasm code could le... Inconsistent data in instruction and data cache when creating wasm code could lead to a potentially exploitable crash.*This bug only affects Firefox on ARM64 platforms.*. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105. Scope: local sid: resolved (fixed in 105.0-1)

CVE-2019-17020 [MEDIUM] CVE-2019-17020: firefox - If an XML file is served with a Content Security Policy and the XML file include... If an XML file is served with a Content Security Policy and the XML file includes an XSL stylesheet, the Content Security Policy will not be applied to the contents of the XSL stylesheet. If the XSL sheet e.g. includes JavaScript, it would bypass any of the restrictions of the Content Security Policy applied to the XML document. This vulnerability affects Firefox

CVE-2006-2775 [HIGH] CVE-2006-2775: firefox - Mozilla Firefox and Thunderbird before 1.5.0.4 associates XUL attributes with th... Mozilla Firefox and Thunderbird before 1.5.0.4 associates XUL attributes with the wrong URL under certain unspecified circumstances, which might allow remote attackers to bypass restrictions by causing a persisted string to be associated with the wrong URL. Scope: local sid: resolved (fixed in 1.5.dfsg+1.5.0.4-1)

CVE-2021-23956 [MEDIUM] CVE-2021-23956: firefox - An ambiguous file picker design could have confused users who intended to select... An ambiguous file picker design could have confused users who intended to select and upload a single file into uploading a whole directory. This was addressed by adding a new prompt. This vulnerability affects Firefox < 85. Scope: local sid: resolved (fixed in 85.0-1)

CVE-2023-6860 [MEDIUM] CVE-2023-6860: firefox - The `VideoBridge` allowed any content process to use textures produced by remote... 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. Scope: local sid: resolved (fixed in 121.0-1)

CVE-2023-6204 [MEDIUM] CVE-2023-6204: firefox - On some systems—depending on the graphics settings and drivers—it was possible t... 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. Scope: local sid: resolved (fixed in 120.0-1)

CVE-2021-38507 [MEDIUM] CVE-2021-38507: firefox - The Opportunistic Encryption feature of HTTP2 (RFC 8164) allows a connection to ... The Opportunistic Encryption feature of HTTP2 (RFC 8164) allows a connection to be transparently upgraded to TLS while retaining the visual properties of an HTTP connection, including being same-origin with unencrypted connections on port 80. However, if a second encrypted port on the same IP address (e.g. port 8443) did not opt-in to opportunistic encryption; a n

CVE-2022-34479 [MEDIUM] CVE-2022-34479: firefox - A malicious website that could create a popup could have resized the popup to ov... A malicious website that could create a popup could have resized the popup to overlay the address bar with its own content, resulting in potential user confusion or spoofing attacks. *This bug only affects Thunderbird for Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbi

CVE-2024-10463 [MEDIUM] CVE-2024-10463: firefox - Video frames could have been leaked between origins in some situations. This vul... Video frames could have been leaked between origins in some situations. This vulnerability affects Firefox < 132, Firefox ESR < 128.4, Firefox ESR < 115.17, Thunderbird < 128.4, and Thunderbird < 132. Scope: local sid: resolved (fixed in 132.0-1)

CVE-2023-37206 [MEDIUM] CVE-2023-37206: firefox - Uploading files which contain symlinks may have allowed an attacker to trick a u... Uploading files which contain symlinks may have allowed an attacker to trick a user into submitting sensitive data to a malicious website. This vulnerability affects Firefox < 115. Scope: local sid: resolved (fixed in 115.0-1)

CVE-2022-22739 [MEDIUM] CVE-2022-22739: firefox - Malicious websites could have tricked users into accepting launching a program t... Malicious websites could have tricked users into accepting launching a program to handle an external URL protocol. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5. Scope: local sid: resolved (fixed in 96.0-1)