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Alerts This Week
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Mageia 8: MGASA-2022-0097 Moderate: Thunderbird Use-After-Free

mageia
Calendar Grey March 11, 2022
Dist Mageia Esm H88
Revised Thunderbird distributions tackle security concerns encompassing use-after-free and sandboxing weaknesses within Mageia.
An attacker could have caused a use-after-free by forcing a text reflow in an SVG object leading to a potentially exploitable crash (CVE-2022-26381)

Summary

An attacker could have caused a use-after-free by forcing a text reflow in an SVG object leading to a potentially exploitable crash (CVE-2022-26381).
When resizing a popup after requesting fullscreen access, the popup would not display the fullscreen notification (CVE-2022-26383).
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 (CVE-2022-26384).
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 (CVE-2022-26386).
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 ...

Read the Full Advisory

References

- https://bugs.mageia.org/show_bug.cgi?id=30144

- https://www.mozilla.org/en-US/security/advisories/mfsa2022-12/

- https://www.thunderbird.net/en-US/thunderbird/91.7.0/releasenotes/

- https://www.cve.org/CVERecord?id=CVE-2022-26381

- https://www.cve.org/CVERecord?id=CVE-2022-26383

- https://www.cve.org/CVERecord?id=CVE-2022-26384

- https://www.cve.org/CVERecord?id=CVE-2022-26386

- https://www.cve.org/CVERecord?id=CVE-2022-26387

Topics%20covered

Topics Covered

security advisory vulnerability thunderbird use-after-free mageia sandbox issue

Resolution

SRPMS

- 8/core/thunderbird-91.7.0-1.mga8

- 8/core/thunderbird-l10n-91.7.0-1.mga8

Severity
important
Lowest
Low
Medium
High
Critical

Publication date: 11 Mar 2022
URL: https://advisories.mageia.org/MGASA-2022-0097.html
Type: security
CVE: CVE-2022-26381, CVE-2022-26383, CVE-2022-26384, CVE-2022-26386, CVE-2022-26387

Topics%20covered

Topics Covered

security advisory vulnerability thunderbird use-after-free mageia sandbox issue

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