Mozilla Firefox vulnerabilities

CVE-2023-4574 [MEDIUM] CWE-416 CVE-2023-4574: When creating a callback over IPC for showing the Color Picker window, multiple of the same callback When creating a callback over IPC for showing the Color Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox

CVE-2023-4581 [MEDIUM] CVE-2023-4581: Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which all Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.

CVE-2023-4573 [MEDIUM] CWE-416 CVE-2023-4573: When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which c When receiving rendering data over IPC `mStream` could have been destroyed when initialized, which could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.

CVE-2023-4578 [MEDIUM] CWE-770 CVE-2023-4578: When calling `JS::CheckRegExpSyntax` a Syntax Error could have been set which would end in calling ` When calling `JS::CheckRegExpSyntax` a Syntax Error could have been set which would end in calling `convertToRuntimeErrorAndClear`. A path in the function could attempt to allocate memory when none is available which would have caused a newly created Out of Memory exception to be mishandled as a Syntax Error. This vulnerability affects Firefox < 117,

CVE-2023-4575 [MEDIUM] CWE-416 CVE-2023-4575: When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks When creating a callback over IPC for showing the File Picker window, multiple of the same callbacks could have been created at a time and eventually all simultaneously destroyed as soon as one of the callbacks finished. This could have led to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox < 117, Firefox E

CVE-2023-4580 [MEDIUM] CWE-311 CVE-2023-4580: Push notifications stored on disk in private browsing mode were not being encrypted potentially allo Push notifications stored on disk in private browsing mode were not being encrypted potentially allowing the leak of sensitive information. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

CVE-2023-4577 [MEDIUM] CVE-2023-4577: When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbag When `UpdateRegExpStatics` attempted to access `initialStringHeap` it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

CVE-2023-4579 [LOW] CVE-2023-4579: Search queries in the default search engine could appear to have been the currently navigated URL if Search queries in the default search engine could appear to have been the currently navigated URL if the search query itself was a well formed URL. This could have led to a site spoofing another if it had been maliciously set as the default search engine. This vulnerability affects Firefox < 117.

CVE-2022-46884 [HIGH] CWE-416 CVE-2022-46884: A potential use-after-free vulnerability existed in SVG Images if the Refresh Driver was destroyed a A potential use-after-free vulnerability existed in SVG Images if the Refresh Driver was destroyed at an inopportune time. This could have lead to memory corruption or a potentially exploitable crash. *Note*: This advisory was added on December 13th, 2022 after discovering it was inadvertently left out of the original advisory. The fix was included in

CVE-2023-4056 [CRITICAL] CWE-787 CVE-2023-4056: Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, Memory safety bugs present in Firefox 115, Firefox ESR 115.0, Firefox ESR 102.13, Thunderbird 115.0, and Thunderbird 102.13. 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 < 116, Firefox ESR < 102.14, and

CVE-2023-4058 [CRITICAL] CWE-787 CVE-2023-4058: Memory safety bugs present in Firefox 115. Some of these bugs showed evidence of memory corruption a Memory safety bugs present in Firefox 115. 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 < 116.

CVE-2023-4057 [CRITICAL] CWE-787 CVE-2023-4057: Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. Some of these b Memory safety bugs present in Firefox 115, Firefox ESR 115.0, and Thunderbird 115.0. 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 < 116, Firefox ESR < 115.1, and Thunderbird < 115.1.

CVE-2023-4047 [HIGH] CWE-352 CVE-2023-4047: A bug in popup notifications delay calculation could have made it possible for an attacker to trick A bug in popup notifications delay calculation could have made it possible for an attacker to trick a user into granting permissions. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

CVE-2023-4055 [HIGH] CWE-120 CVE-2023-4055: When the number of cookies per domain was exceeded in `document.cookie`, the actual cookie jar sent When the number of cookies per domain was exceeded in `document.cookie`, the actual cookie jar sent to the host was no longer consistent with expected cookie jar state. This could have caused requests to be sent with some cookies missing. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

CVE-2023-4050 [HIGH] CWE-787 CVE-2023-4050: In some cases, an untrusted input stream was copied to a stack buffer without checking its size. Thi 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.

CVE-2023-4051 [HIGH] CVE-2023-4051: A website could have obscured the full screen notification by using the file open dialog. This could A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.

CVE-2023-4048 [HIGH] CWE-125 CVE-2023-4048: An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low An out-of-bounds read could have led to an exploitable crash when parsing HTML with DOMParser in low memory situations. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

CVE-2023-4046 [MEDIUM] CWE-770 CVE-2023-4046: In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis In some circumstances, a stale value could have been used for a global variable in WASM JIT analysis. This resulted in incorrect compilation and a potentially exploitable crash in the content process. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

CVE-2023-4049 [MEDIUM] CWE-362 CVE-2023-4049: Race conditions in reference counting code were found through code inspection. These could have resu Race conditions in reference counting code were found through code inspection. These could have resulted in potentially exploitable use-after-free vulnerabilities. This vulnerability affects Firefox < 116, Firefox ESR < 102.14, and Firefox ESR < 115.1.

CVE-2023-4052 [MEDIUM] CWE-59 CVE-2023-4052: The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, The Firefox updater created a directory writable by non-privileged users. When uninstalling Firefox, any files in that directory would be recursively deleted with the permissions of the uninstalling user account. This could be combined with creation of a junction (a form of symbolic link) to allow arbitrary file deletion controlled by the non-privilege