| Name | CVE-2021-30858 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-4975-1, DSA-4976-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| webkit2gtk (PTS) | buster | 2.36.4-1~deb10u1 | fixed |
| buster (security) | 2.38.6-0+deb10u1 | fixed |
| bullseye | 2.40.5-1~deb11u1 | fixed |
| bullseye (security) | 2.42.2-1~deb11u1 | fixed |
| bookworm | 2.40.5-1~deb12u1 | fixed |
| bookworm (security) | 2.42.2-1~deb12u1 | fixed |
| sid, trixie | 2.42.2-1 | fixed |
| wpewebkit (PTS) | bullseye (security), bullseye | 2.38.6-1~deb11u1 | fixed |
| bookworm | 2.38.6-1 | fixed |
| sid, trixie | 2.42.2-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[stretch] - webkit2gtk <ignored> (Not covered by security support in stretch)
https://webkitgtk.org/security/WSA-2021-0005.html