CVE catalog

CVE-2021-4214

libpng1.6: CVE-2021-4214

Severity: Low
Published: Aug 24, 2022, 4:15:10 PM UTC
Source: [NVD] · [CVE record]
EPSS: 0.54% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	libpng1.6	sid	`1.6.59-1`	vulnerable
Debian	libpng1.6	forky	`1.6.59-1`	vulnerable
Debian	libpng1.6	trixie	`1.6.48-1+deb13u5`	vulnerable
Debian	libpng1.6	trixie-security	`1.6.48-1+deb13u6`	vulnerable
Debian	libpng1.6	bookworm	`1.6.39-2+deb12u5`	vulnerable
Debian	libpng1.6	bookworm-security	`1.6.39-2+deb12u6`	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libpng1.6	source	sid	`(unfixed)`	unimportant	Not reported	Not reported
Debian	libpng1.6	source	forky	`(unfixed)`	unimportant	Not reported	Not reported
Debian	libpng1.6	source	trixie	`(unfixed)`	unimportant	Not reported	Not reported
Debian	libpng1.6	source	bookworm	`(unfixed)`	unimportant	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[libpng16-16]Unknown
Source package: [libpng1.6]
Details (4)
- 1.6.39-2+deb12u5 · amd64 · bookworm
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12
- 1.6.39-2+deb12u5 · arm64 · bookworm
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12
- 1.6.39-2+deb12u5 · amd64 · bookworm-security
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12
- 1.6.39-2+deb12u5 · arm64 · bookworm-security
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12
[libpng-dev]Unknown
Source package: [libpng1.6]
Details (4)
- 1.6.39-2+deb12u5 · amd64 · bookworm
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12
- 1.6.39-2+deb12u5 · arm64 · bookworm
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12
- 1.6.39-2+deb12u5 · amd64 · bookworm-security
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12
- 1.6.39-2+deb12u5 · arm64 · bookworm-security
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12
[libpng-tools]Unknown
Source package: [libpng1.6]
Details (4)
- 1.6.39-2+deb12u5 · amd64 · bookworm
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12
- 1.6.39-2+deb12u5 · arm64 · bookworm
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12
- 1.6.39-2+deb12u5 · amd64 · bookworm-security
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12
- 1.6.39-2+deb12u5 · arm64 · bookworm-security
  Affected
  dsa · libpng1.6 · debian · bookworm; dsa · libpng1.6 · debian · 12

[Debian 13 (Trixie)]

[libpng16-16t64]Unknown
Source package: [libpng1.6]
Details (5)
- 1.6.48-1+deb13u5 · amd64 · trixie
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u5 · arm64 · trixie
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u5 · amd64 · trixie-security · Historical version
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u5 · arm64 · trixie-security
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u6 · amd64 · trixie-security
  Affected
  dsa · libpng1.6 · debian · 13
[libpng-dev]Unknown
Source package: [libpng1.6]
Details (5)
- 1.6.48-1+deb13u5 · amd64 · trixie
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u5 · arm64 · trixie
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u5 · amd64 · trixie-security · Historical version
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u5 · arm64 · trixie-security
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u6 · amd64 · trixie-security
  Affected
  dsa · libpng1.6 · debian · 13
[libpng-tools]Unknown
Source package: [libpng1.6]
Details (5)
- 1.6.48-1+deb13u5 · amd64 · trixie
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u5 · arm64 · trixie
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u5 · amd64 · trixie-security · Historical version
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u5 · arm64 · trixie-security
  Affected
  dsa · libpng1.6 · debian · 13
- 1.6.48-1+deb13u6 · amd64 · trixie-security
  Affected
  dsa · libpng1.6 · debian · 13

Observed: Oct 23, 2026, 6:03:08 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]