Use After Free Affecting webkit2gtk package, versions <2.32.4-r0


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Exploit Maturity
Mature
EPSS
0.54% (78th percentile)

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  • Snyk IDSNYK-ALPINE316-WEBKIT2GTK-2846976
  • published25 Nov 2021
  • 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 Alpine:3.16 webkit2gtk to version 2.32.4-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkit2gtk package and not the webkit2gtk package as distributed by Alpine. See How to fix? for Alpine:3.16 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