Mozilla developers reported memory safety bugs present in Firefox for Android 79. 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 < 80, Firefox ESR < 78.2, Thunderbird < 78.2, and Firefox for Android < 80.

Use after free in WebRTC in Google Chrome prior to 86.0.4240.75 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Use after free in WebRTC in Google Chrome prior to 86.0.4240.75 allowed a remote attacker to potentially exploit heap corruption via a crafted WebRTC stream.

Use after free in user interface in Google Chrome prior to 86.0.4240.183 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Use after free in NFC in Google Chrome prior to 86.0.4240.75 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Use after free in printing in Google Chrome prior to 86.0.4240.111 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Use after free in printing in Google Chrome prior to 86.0.4240.75 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

When aborting an operation, such as a fetch, an abort signal may be deleted while alerting the objects to be notified. This results in a use-after-free and we presume that with enough effort it could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 68.12 and Thunderbird < 68.12.

Use-after-free vulnerability in the OnWindowRemovingFromRootWindow function in content/browser/web_contents/web_contents_view_aura.cc in Google Chrome before 32.0.1700.76 on Windows and before 32.0.1700.77 on Mac OS X and Linux allows user-assisted remote attackers to cause a denial of service or possibly have unspecified other impact via vectors involving certain print-preview and tab-switch actions that interact with a speech input element.

FontForge 20190801 has a use-after-free in SFD_GetFontMetaData in sfd.c.

A use-after-free issue exists in WebKitGTK before 2.28.1 and WPE WebKit before 2.28.1 via crafted web content that allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash).

libEMF (aka ECMA-234 Metafile Library) through 1.0.11 allows a use-after-free.

A VideoStreamEncoder may have been freed in a race condition with VideoBroadcaster::AddOrUpdateSink, resulting in a use-after-free, memory corruption, and a potentially exploitable crash. This vulnerability affects Firefox < 78.

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.

A race condition when running shutdown code for Web Worker led to a use-after-free vulnerability. This resulted in a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.8, Firefox < 76, and Thunderbird < 68.8.0.

When trying to connect to a STUN server, a race condition could have caused a use-after-free of a pointer, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

When processing callbacks that occurred during window flushing in the parent process, the associated window may die; causing a use-after-free condition. This could have led to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

Removing an XSLT parameter during processing could have lead to an exploitable use-after-free. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.

Use-after-free vulnerability in the virNetMessageFree function in rpc/virnetserverclient.c in libvirt 1.0.x before 1.0.2, 0.10.2 before 0.10.2.3, 0.9.11 before 0.9.11.9, and 0.9.6 before 0.9.6.4 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code by triggering certain errors during an RPC connection, which causes a message to be freed without being removed from the message queue.

Use-after-free vulnerability in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 on Mac OS X allows remote attackers to execute arbitrary code via an HTML document.

Use after free in file chooser in Google Chrome prior to 74.0.3729.108 allowed a remote attacker who had compromised the renderer process to perform privilege escalation via a crafted HTML page.

Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free after unwrapping the proxy. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.

During the worker lifecycle, a use-after-free condition could have occured, which could have led to a potentially exploitable crash. This vulnerability affects Firefox < 115.0.2, Firefox ESR < 115.0.2, and Thunderbird < 115.0.1.

An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS. This vulnerability affects Firefox < 115, Firefox ESR < 102.13, and Thunderbird < 102.13.

Use-after-free vulnerability in the Cascading Style Sheets (CSS) implementation in Google Chrome before 17.0.963.83 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the cross-fade function.

A use-after-free condition existed in `NotifyOnHistoryReload` where a `LoadingSessionHistoryEntry` object was freed and a reference to that object remained. This resulted in a potentially exploitable condition when the reference to that object was later reused. This vulnerability affects Firefox < 115.

Use-after-free vulnerability in the element wrapper in Google V8, as used in Google Chrome before 17.0.963.65, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.

Use-after-free vulnerability in Google Chrome before 17.0.963.65 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors involving SVG animation elements.

Use-after-free vulnerability in Google Chrome before 17.0.963.83 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to block splitting.

Use-after-free vulnerability in Google Chrome before 17.0.963.65 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to multi-column handling.

Use-after-free vulnerability in Google Chrome before 17.0.963.65 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors involving an SVG document.

Use-after-free vulnerability in Google Chrome before 17.0.963.65 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to the handling of table sections.

When interacting with an HTML input element's file picker dialog with webkitdirectory set, a use-after-free could have resulted, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

During operations on MessageTasks, a task may have been removed while it was still scheduled, resulting in memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 78.15, Thunderbird < 91.2, Firefox ESR < 91.2, Firefox ESR < 78.15, and Firefox < 93.

An attacker could cause the memory manager to incorrectly free a pointer that addresses attacker-controlled memory, resulting in an assertion, memory corruption, or a potentially exploitable crash. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

An attacker could have caused memory corruption and a potentially exploitable use-after-free of a pointer in a global object's debugger vector. This vulnerability affects Firefox for Android < 112, Firefox < 112, and Focus for Android < 112.

Module load requests that failed were not being checked as to whether or not they were cancelled causing a use-after-free in <code>ScriptLoadContext</code>. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

Use-after-free while manipulating the "navigator" object within WebVR. Note: WebVR is not currently enabled by default. This vulnerability affects Firefox < 50.1.

Use-after-free vulnerability in V8 in Google Chrome before 53.0.2785.143 allows remote attackers to cause a denial of service (crash) or possibly have unspecified other impact via unknown vectors.

A use-after-free in nsINode::ReplaceOrInsertBefore during DOM operations resulting in potentially exploitable crashes. This vulnerability affects Firefox < 50.

extensions/renderer/event_bindings.cc in the event bindings in Google Chrome before 53.0.2785.89 on Windows and OS X and before 53.0.2785.92 on Linux attempts to process filtered events after failure to add an event matcher, which allows remote attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact via unknown vectors.

Use-after-free vulnerability in the WebRTC socket thread in Mozilla Firefox before 48.0 and Firefox ESR 45.x before 45.3 allows remote attackers to execute arbitrary code by leveraging incorrect free operations on DTLS objects during the shutdown of a WebRTC session.

Use-after-free vulnerability in libcurl before 7.50.1 allows attackers to control which connection is used or possibly have unspecified other impact via unknown vectors.

A use-after-free vulnerability can occur in AssertWorkerThread due to a race condition with shared workers. This results in a potentially exploitable crash. This vulnerability affects Firefox < 67.

A use-after-free vulnerability can occur when script uses mutation events to move DOM nodes between documents, resulting in the old document that held the node being freed but the node still having a pointer referencing it. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

An integer overflow that leads to a use-after-free in Blink Storage in Google Chrome on Linux prior to 73.0.3683.75 allowed a remote attacker who had compromised the renderer process to execute arbitrary code via a crafted HTML page.