Mozilla Foundation Security Advisory 2022-12
Security Vulnerabilities fixed in Thunderbird 91.7
- Announced
- March 8, 2022
- Impact
- high
- Products
- Thunderbird
- Fixed in
-
- Thunderbird 91.7
In general, these flaws cannot be exploited through email in the Thunderbird product because scripting is disabled when reading mail, but are potentially risks in browser or browser-like contexts.
#CVE-2022-26383: Browser window spoof using fullscreen mode
- Reporter
- Irvan Kurniawan
- Impact
- high
Description
When resizing a popup after requesting fullscreen access, the popup would not display the fullscreen notification.
References
#CVE-2022-26384: iframe allow-scripts sandbox bypass
- Reporter
- Ed McManus
- Impact
- high
Description
If an attacker could control the contents of an iframe sandboxed with allow-popups but not allow-scripts, they were able to craft a link that, when clicked, would lead to JavaScript execution in violation of the sandbox.
References
#CVE-2022-26387: Time-of-check time-of-use bug when verifying add-on signatures
- Reporter
- Armin Ebert
- Impact
- high
Description
When installing an add-on, Thunderbird 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 Thunderbird would not have noticed.
References
#CVE-2022-26381: Use-after-free in text reflows
- Reporter
- Mozilla Fuzzing Team and Hossein Lotfi of Trend Micro Zero Day Initiative
- Impact
- high
Description
An attacker could have caused a use-after-free by forcing a text reflow in an SVG object leading to a potentially exploitable crash.
References
#CVE-2022-26386: Temporary files downloaded to /tmp and accessible by other local users
- Reporter
- attila
- Impact
- low
Description
Previously Thunderbird for macOS and Linux would download temporary files to a user-specific directory in /tmp, but this behavior was changed to download them to /tmp where they could be affected by other local users. This behavior was reverted to the original, user-specific directory.
This bug only affects Thunderbird for macOS and Linux. Other operating systems are unaffected.