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, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-4975-1, DSA-4976-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
webkit2gtk (PTS)stretch2.18.6-1~deb9u1vulnerable
buster, buster (security)2.32.4-1~deb10u1fixed
bullseye (security), bullseye2.32.4-1~deb11u1fixed
bookworm, sid2.34.1-1fixed
wpewebkit (PTS)bullseye (security), bullseye2.32.4-1~deb11u1fixed
bookworm, sid2.34.1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
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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