Use After Free Affecting firefox package, versions <93.0-1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.27% (67th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIREFOX-1728405
  • published6 Oct 2021
  • disclosed3 Nov 2021

Introduced: 6 Oct 2021

CVE-2021-38498  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firefox to version 93.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

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 Scores

version 3.1