| Name | CVE-2021-4214 |
| Description | A heap overflow flaw was found in libpngs' pngimage.c program. This flaw allows an attacker with local network access to pass a specially crafted PNG file to the pngimage utility, causing an application to crash, leading to a denial of service. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libpng1.6 (PTS) | stretch (security), stretch (lts), stretch | 1.6.28-1+deb9u1 | vulnerable |
| buster | 1.6.36-6 | vulnerable |
| bullseye | 1.6.37-3 | vulnerable |
| bookworm | 1.6.39-2 | vulnerable |
| sid, trixie | 1.6.43-5 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libpng1.6 | source | (unstable) | (unfixed) | unimportant | | |
Notes
https://github.com/glennrp/libpng/issues/302
Crash in CLI package, not shipped in binary packages