1610 matches found
Security Vulnerabilities fixed in Firefox ESR 115.25 — Mozilla
A use-after-free in FontFaceSet resulted in a potentially exploitable crash. An attacker who enumerated resources from the WebCompat extension could have obtained a persistent UUID that identified the browser, and persisted between containers and normal/private browsing mode, but not profiles...
Security Vulnerabilities fixed in Thunderbird 139.0.2 — Mozilla
A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This behavior can be abused to fill the disk with garbage data e.g. using /dev/urandom on Linux or to...
Security Vulnerabilities fixed in Thunderbird 128.11.1 — Mozilla
A crafted HTML email using mailbox:/// links can trigger automatic, unsolicited downloads of .pdf files to the user's desktop or home directory without prompting, even if auto-saving is disabled. This behavior can be abused to fill the disk with garbage data e.g. using /dev/urandom on Linux or to...
Security Vulnerabilities fixed in Firefox 139.0.4 — Mozilla
Certain canvas operations could have lead to memory corruption. An integer overflow was present in OrderedHashTable used by the JavaScript engine...
Security Issue fixed in Mozilla VPN for macOS v2.28.0 — Mozilla
A vulnerability in Mozilla VPN on macOS allows privilege escalation from a normal user to root.This bug only affects Mozilla VPN on macOS. Other operating systems are unaffected...
Security Vulnerabilities fixed in Firefox 139 — Mozilla
A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. Error handling for script execution was incorrectly isolated from web content, which could ha...
Security Vulnerabilities fixed in Firefox ESR 128.11 — Mozilla
A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. Error handling for script execution was incorrectly isolated from web content, which could ha...
Security Vulnerabilities fixed in Thunderbird 128.11 — Mozilla
A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. Error handling for script execution was incorrectly isolated from web content, which could ha...
Security Vulnerabilities fixed in Thunderbird 139 — Mozilla
A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. Error handling for script execution was incorrectly isolated from web content, which could ha...
Security Vulnerabilities fixed in Firefox ESR 115.24 — Mozilla
A double-free could have occurred in vpxcodecencinitmulti after a failed allocation when initializing the encoder for WebRTC. This could have caused memory corruption and a potentially exploitable crash. Error handling for script execution was incorrectly isolated from web content, which could ha...
Security Vulnerabilities fixed in Thunderbird 138.0.2 — Mozilla
An attacker was able to perform an out-of-bounds read or write on a JavaScript Promise object. An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes...
Security Vulnerabilities fixed in Firefox for iOS 139 — Mozilla
Opening maliciously-crafted URLs in Firefox from other apps such as Safari could have allowed attackers to spoof website addresses if the URLs utilized non-HTTP schemes used internally by the Firefox iOS client...
Security Vulnerabilities fixed in Thunderbird 128.10.2 — Mozilla
An attacker was able to perform an out-of-bounds read or write on a JavaScript Promise object. An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes...
Security Vulnerabilities fixed in Firefox 138.0.4 — Mozilla
An attacker was able to perform an out-of-bounds read or write on a JavaScript Promise object. An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes...
Security Vulnerabilities fixed in Firefox ESR 115.23.1 — Mozilla
An attacker was able to perform an out-of-bounds read or write on a JavaScript Promise object. An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes...
Security Vulnerabilities fixed in Firefox ESR 128.10.1 — Mozilla
An attacker was able to perform an out-of-bounds read or write on a JavaScript Promise object. An attacker was able to perform an out-of-bounds read or write on a JavaScript object by confusing array index sizes...
Security Vulnerabilities fixed in Thunderbird 138.0.1 — Mozilla
Thunderbird parses addresses in a way that can allow sender spoofing in case the server allows an invalid From address to be used. For example, if the From header contains an invalid value "Spoofed Name [email protected] [email protected]", Thunderbird treats [email protected] as the...
Security Vulnerabilities fixed in Thunderbird 128.10.1 — Mozilla
Thunderbird parses addresses in a way that can allow sender spoofing in case the server allows an invalid From address to be used. For example, if the From header contains an invalid value "Spoofed Name [email protected] [email protected]", Thunderbird treats [email protected] as the...
Security Vulnerabilities fixed in Thunderbird 128.10 — Mozilla
Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations...
Security Vulnerabilities fixed in Firefox 138 — Mozilla
Mozilla Firefox's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file...
Security Vulnerabilities fixed in Firefox ESR 115.23 — Mozilla
Mozilla Firefox's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file...
Security Vulnerabilities fixed in Thunderbird 138 — Mozilla
Thunderbird's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file operations...
Security Vulnerabilities fixed in Firefox ESR 128.10 — Mozilla
Mozilla Firefox's update mechanism allowed a medium-integrity user process to interfere with the SYSTEM-level updater by manipulating the file-locking behavior. By injecting code into the user-privileged process, an attacker could bypass intended access controls, allowing SYSTEM-level file...
Security vulnerability fixed in Focus for iOS 138 — Mozilla
Websites directing users to long URLs that caused eliding to occur in the location view could leverage the truncating behavior to potentially trick users into thinking they were on a different webpage...
Security Vulnerabilities fixed in Thunderbird 137.0.2 — Mozilla
Thunderbird processes the X-Mozilla-External-Attachment-URL header to handle attachments which can be hosted externally. When an email is opened, Thunderbird accesses the specified URL to determine file size, and navigates to it when the user clicks the attachment. Because the URL is not validate...
Security Vulnerabilities fixed in Thunderbird ESR 128.9.2 — Mozilla
Thunderbird processes the X-Mozilla-External-Attachment-URL header to handle attachments which can be hosted externally. When an email is opened, Thunderbird accesses the specified URL to determine file size, and navigates to it when the user clicks the attachment. Because the URL is not validate...
Security vulnerability fixed in Firefox 137.0.2 — Mozilla
A race condition existed in nsHttpTransaction that could have been exploited to cause memory corruption, potentially leading to an exploitable condition...
Security Vulnerabilities fixed in Thunderbird 137 — Mozilla
JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function. Leaking of file descriptors from the fork server to web content processes could allow for...
Security Vulnerabilities fixed in Thunderbird ESR 128.9 — Mozilla
JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. Memory safety bugs present in Firefox 136,...
Security Vulnerabilities fixed in Firefox ESR 128.9 — Mozilla
JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. A crafted URL containing specific Unicode characters could have hidden the true origin of the page, resulting in a potential spoofing attack. Memory safety bugs present in Firefox 136,...
Security Vulnerabilities fixed in Firefox 137 — Mozilla
JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free. An attacker could read 32 bits of values spilled onto the stack in a JIT compiled function. Leaking of file descriptors from the fork server to web content processes could allow for...
Security Vulnerabilities fixed in Firefox ESR 115.22 — Mozilla
JavaScript code running while transforming a document with the XSLTProcessor could lead to a use-after-free...
Security Vulnerability fixed in Firefox 136.0.4, Firefox ESR 128.8.1, Firefox ESR 115.21.1 — Mozilla
Following the recent Chrome sandbox escape CVE-2025-2783, various Firefox developers identified a similar pattern in our IPC code. A compromised child process could cause the parent process to return an unintentionally powerful handle, leading to a sandbox escape. The original vulnerability was...
Security Vulnerabilities fixed in Firefox 136 — Mozilla
On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the Browser process. This could have led to a sandbox escape. Android apps can load web pages using the Custom Tabs feature. This feature supports a transition animation that could...
Security Vulnerabilities fixed in Thunderbird 136 — Mozilla
Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. When requesting an OpenPGP key from a WKD server, an incorrect padding size was used and a network observer could hav...
Security Vulnerabilities fixed in Thunderbird ESR 128.8 — Mozilla
Certain crafted MIME email messages that claimed to contain an encrypted OpenPGP message, which instead contained an OpenPGP signed message, were wrongly shown as being encrypted. When requesting an OpenPGP key from a WKD server, an incorrect padding size was used and a network observer could hav...
Security Vulnerabilities fixed in Firefox ESR 128.8 — Mozilla
In resizeToAtLeast of SkRegion.cpp, there was a possible out of bounds write due to an integer overflow On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the Browser process. This could have led to a sandbox escape. It was possibl...
Security Vulnerabilities fixed in Firefox ESR 115.21 — Mozilla
In resizeToAtLeast of SkRegion.cpp, there was a possible out of bounds write due to an integer overflow On Windows, a compromised content process could use bad StreamData sent over AudioIPC to trigger a use-after-free in the Browser process. This could have led to a sandbox escape. It was possibl...
Security Vulnerabilities fixed in Firefox for iOS 136 — Mozilla
Malicious websites utilizing a server-side redirect to an internal error page could result in a spoofed website URL Websites redirecting to a non-HTTP scheme URL could allow a website address to be spoofed for a malicious page Scanning certain QR codes that included text with a website URL could...
Security Vulnerabilities fixed in Firefox 135.0.1 — Mozilla
Memory safety bugs present in Firefox 135. 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...
Security Vulnerabilities fixed in Thunderbird 135 — Mozilla
An attacker could have caused a use-after-free via crafted XSLT data, leading to a potentially exploitable crash. An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash. The fullscreen notification is prematurely hidden when...
Security Vulnerabilities fixed in Firefox ESR 128.7 — Mozilla
An attacker could have caused a use-after-free via crafted XSLT data, leading to a potentially exploitable crash. An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash. A bug in WebAssembly code generation could have lead to a cras...
Security Vulnerabilities fixed in Firefox 135 — Mozilla
An attacker could have caused a use-after-free via crafted XSLT data, leading to a potentially exploitable crash. An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash. The fullscreen notification is prematurely hidden when...
Security Vulnerabilities fixed in Firefox ESR 115.20 — Mozilla
An attacker could have caused a use-after-free via crafted XSLT data, leading to a potentially exploitable crash. An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash. A race during concurrent delazification could have led to a...
Security Vulnerabilities fixed in Thunderbird ESR 128.7 — Mozilla
An attacker could have caused a use-after-free via crafted XSLT data, leading to a potentially exploitable crash. An attacker could have caused a use-after-free via the Custom Highlight API, leading to a potentially exploitable crash. A bug in WebAssembly code generation could have lead to a cras...
Security Vulnerabilities fixed in Firefox for iOS 134 — Mozilla
Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the new tab. Long hostnames in URLs could be leveraged to obscure the actual host of the website or spoof the website address...
Security Vulnerabilities fixed in Firefox 134 — Mozilla
In resizeToAtLeast of SkRegion.cpp, there was a possible out of bounds write due to an integer overflow When redirecting to an invalid protocol scheme, an attacker could spoof the address bar. Note: This issue only affected Android operating systems. Other operating systems are unaffected. Under...
Security Vulnerabilities fixed in Thunderbird 134 — Mozilla
The Matrix specification demands homeservers to perform validation of the server-name and media-id components of MXC URIs with the intent to prevent path traversal. However, it is not mentioned that a similar check must also be performed on the client to prevent client-side path traversal...
Security Vulnerabilities fixed in Firefox ESR 128.6 — Mozilla
The WebChannel API, which is used to transport various information across processes, did not check the sending principal but rather accepted the principal being sent. This could have led to privilege escalation attacks. Assuming a controlled failed memory allocation, an attacker could have caused...
Security Vulnerabilities fixed in Thunderbird ESR 128.6 — Mozilla
The WebChannel API, which is used to transport various information across processes, did not check the sending principal but rather accepted the principal being sent. This could have led to privilege escalation attacks. Assuming a controlled failed memory allocation, an attacker could have caused...