CVE-2020-26950

State: Published
Severity: Not scored
Published: Dec 9, 2020
Updated: Aug 4, 2024
Reserved: Oct 12, 2020

Description

In certain circumstances, the MCallGetProperty opcode can be emitted with unmet assumptions resulting in an exploitable use-after-free condition. This vulnerability affects Firefox < 82.0.3, Firefox ESR < 78.4.1, and Thunderbird < 78.4.2.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
FirefoxMozilla	< 82.0.3Affected
Firefox ESRMozilla	< 78.4.1Affected
ThunderbirdMozilla	< 78.4.2Affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1675905
https://www.mozilla.org/security/advisories/mfsa2020-49/
http://packetstormsecurity.com/files/166175/Firefox-MCallGetProperty-Write-Side-Effects-Use-After-Free.html

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