Use After Free Affecting webkit2gtk3-jsc-devel package, versions <0:2.34.2-1.amzn2022


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.54% (78th percentile)

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  • Snyk IDSNYK-AMZN2022-WEBKIT2GTK3JSCDEVEL-2995107
  • published29 Aug 2022
  • disclosed24 Aug 2021

Introduced: 24 Aug 2021

CVE-2021-30858  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2022 webkit2gtk3-jsc-devel to version 0:2.34.2-1.amzn2022 or higher.
This issue was patched in ALAS2022-2022-015.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkit2gtk3-jsc-devel package and not the webkit2gtk3-jsc-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2022 relevant fixed versions and status.

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.

CVSS Scores

version 3.1