CVE-2021-30858

NameCVE-2021-30858
DescriptionA 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-4975-1, DSA-4976-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
webkit2gtk (PTS)jessie2.6.2+dfsg1-4vulnerable
stretch2.18.6-1~deb9u1vulnerable
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
webkit2gtksourcejessie(unfixed)end-of-life
webkit2gtksourcebuster2.32.4-1~deb10u1DSA-4975-1
webkit2gtksourcebullseye2.32.4-1~deb11u1DSA-4975-1
webkit2gtksource(unstable)2.32.4-1
wpewebkitsourcebullseye2.32.4-1~deb11u1DSA-4976-1
wpewebkitsource(unstable)2.32.4-1

Notes

[stretch] - webkit2gtk <ignored> (Not covered by security support in stretch)
https://webkitgtk.org/security/WSA-2021-0005.html

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