CVE-2020-27918

NameCVE-2020-27918
DescriptionA use after free issue was addressed with improved memory management. This issue is fixed in macOS Big Sur 11.0.1, watchOS 7.1, iOS 14.2 and iPadOS 14.2, iCloud for Windows 11.5, Safari 14.0.1, tvOS 14.2, iTunes 12.11 for Windows. Processing maliciously crafted web content may lead to arbitrary code execution.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-4877-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
webkit2gtk (PTS)buster2.36.4-1~deb10u1fixed
buster (security)2.38.6-0+deb10u1fixed
bullseye2.42.2-1~deb11u1fixed
bullseye (security)2.42.5-1~deb11u1fixed
bookworm2.42.2-1~deb12u1fixed
bookworm (security)2.42.5-1~deb12u1fixed
trixie2.42.5-1fixed
sid2.44.0-2fixed
wpewebkit (PTS)bullseye (security), bullseye2.38.6-1~deb11u1fixed
bookworm2.38.6-1fixed
trixie2.42.5-1fixed
sid2.42.5-1.2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
webkit2gtksourcebuster2.30.6-1~deb10u1DSA-4877-1
webkit2gtksource(unstable)2.30.6-1
wpewebkitsource(unstable)2.30.6-1

Notes

[stretch] - webkit2gtk <ignored> (Not covered by security support in stretch)
https://webkitgtk.org/security/WSA-2021-0002.html

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