CVE-2021-38498 Information

Description

During process shutdown a document could have caused a use-after-free of a languages service object leading to memory corruption and a potentially exploitable crash. This vulnerability affects Firefox < 93 Thunderbird < 91.2 and Firefox ESR < 91.2.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://www.mozilla.org/security/advisories/mfsa2021-43/ https://www.mozilla.org/security/advisories/mfsa2021-45/ https://bugzilla.mozilla.org/show_bug.cgi?id=1729642 https://www.mozilla.org/security/advisories/mfsa2021-47/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5