CVE-2022-22760

Mozilla: Cross-Origin responses could be distinguished between script and non-script content-types

When importing resources using Web Workers, error messages would distinguish the difference between <code>application/javascript</code> responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-22759

Mozilla: Sandboxed iframes could have executed script if the parent appended elements

If a document created a sandboxed iframe without <code>allow-scripts</code>, and subsequently appended an element to the iframe's document that e.g. had a JavaScript event handler - the event handler would have run despite the iframe's sandbox. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-22756

Mozilla: Drag and dropping an image could have resulted in the dropped object being an executable

If a user was convinced to drag and drop an image to their desktop or other folder, the resulting object could have been changed into an executable script which would have run arbitrary code after the user clicked on it. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-22754

Mozilla: Extensions could have bypassed permission confirmation during update

If a user installed an extension of a particular type, the extension could have auto-updated itself and while doing so, bypass the prompt which grants the new version the new requested permissions. This vulnerability affects Firefox < 97, Thunderbird < 91.6, and Firefox ESR < 91.6.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-22751

Mozilla: Memory safety bugs fixed in Firefox 96 and Firefox ESR 91.5

Mozilla developers Calixte Denizet, Kershaw Chang, Christian Holler, Jason Kratzer, Gabriele Svelto, Tyson Smith, Simon Giesecke, and Steve Fink reported memory safety bugs present in Firefox 95 and Firefox ESR 91.4. 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 < 91.5, Firefox < 96, and Thunderbird < 91.5.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-22748

Mozilla: Spoofed origin on external protocol launch dialog

Malicious websites could have confused Firefox into showing the wrong origin when asking to launch a program and handling an external URL protocol. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-22745

Mozilla: Leaking cross-origin URLs through securitypolicyviolation event

Securitypolicyviolation events could have leaked cross-origin information for frame-ancestors violations. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-22738

Mozilla: Heap-buffer-overflow in blendGaussianBlur

Applying a CSS filter effect could have accessed out of bounds memory. This could have lead to a heap-buffer-overflow causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

CVSS 3.1 · 8.8 High EPSS 1.0% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-22737

Mozilla: Race condition when playing audio files

Constructing audio sinks could have lead to a race condition when playing audio files and closing windows. This could have lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 91.5, Firefox < 96, and Thunderbird < 91.5.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-31740

Mozilla: Register allocation problem in WASM on arm64

On arm64, WASM code could have resulted in incorrect assembly generation leading to a register allocation problem, and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-31738

Mozilla: Browser window spoof using fullscreen mode

When exiting fullscreen mode, an iframe could have confused the browser about the current state of fullscreen, resulting in potential user confusion or spoofing attacks. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-31737

Mozilla: Heap buffer overflow in WebGL

A malicious webpage could have caused an out-of-bounds write in WebGL, leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.

CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-29911

Mozilla: iframe Sandbox bypass

An improper implementation of the new iframe sandbox keyword <code>allow-top-navigation-by-user-activation</code> could lead to script execution without <code>allow-scripts</code> being present. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

CVSS 3.1 · 6.1 Medium EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-29909

Mozilla: Bypassing permission prompt in nested browsing contexts

Documents in deeply-nested cross-origin browsing contexts could have obtained permissions granted to the top-level origin, bypassing the existing prompt and wrongfully inheriting the top-level permissions. This vulnerability affects Thunderbird < 91.9, Firefox ESR < 91.9, and Firefox < 100.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-28289

Mozilla: Memory safety bugs fixed in Firefox 99 and Firefox ESR 91.8

Mozilla developers and community members Nika Layzell, Andrew McCreight, Gabriele Svelto, and the Mozilla Fuzzing Team reported memory safety bugs present in Thunderbird 91.7. 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 Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-28286

Mozilla: iframe contents could be rendered outside the border

Due to a layout change, iframe contents could have been rendered outside of its border. This could have led to user confusion or spoofing attacks. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

CVSS 3.1 · 5.4 Medium EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-28285

Mozilla: Incorrect AliasSet used in JIT Codegen

When generating the assembly code for <code>MLoadTypedArrayElementHole</code>, an incorrect AliasSet was used. In conjunction with another vulnerability this could have been used for an out of bounds memory read. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-28281

Mozilla: Out of bounds write due to unexpected WebAuthN Extensions

If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out of bounds write would have occurred leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.

CVSS 3.1 · 8.8 High EPSS 2.8% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-26387

Mozilla: Time-of-check time-of-use bug when verifying add-on signatures

When installing an add-on, Firefox verified the signature before prompting the user; but while the user was confirming the prompt, the underlying add-on file could have been modified and Firefox would not have noticed. This vulnerability affects Firefox < 98, Firefox ESR < 91.7, and Thunderbird < 91.7.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed

Vendors

Mozilla Redhat

Products

Firefox Firefox Esr Thunderbird and 3 more

CVE-2022-26386

Mozilla: Temporary files downloaded to /tmp and accessible by other local users

Previously Firefox for macOS and Linux would download temporary files to a user-specific directory in <code>/tmp</code>, but this behavior was changed to download them to <code>/tmp</code> where they could be affected by other local users. This behavior was reverted to the original, user-specific directory. <br>*This bug only affects Firefox for macOS and Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 91.7 and Thunderbird < 91.7.

CVSS 3.1 · 6.5 Medium EPSS < 1% KEV · Not listed

Vendors

Apple Linux Mozilla and 1 more

Products

Macos Linux Kernel Firefox Esr and 4 more