Description
Heap-based buffer overflow in the ReadPNMImage function in pnm.c for ImageMagick 6.2.1 and earlier allows remote attackers to cause a denial of service (application crash) via a PNM file with a small colors value.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | imagemagick | 6:6.0.6.2-2.3 | — |
| Debian 13 | imagemagick | 6:6.0.6.2-2.3 | — |
| Debian 12 | imagemagick | 6:6.0.6.2-2.3 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4 | ImageMagick +4 | 6.0.7.1-11 | RHSA-2005:413 |
| RHEL 3 | ImageMagick +4 | 5.5.6-14 | RHSA-2005:413 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- ImageMagick 6.x - '.PNM' Image Decoding Remote Buffer Overflow EDB-25527 · dos · Apr 25, 2005 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- RHSA-2005:413 Red Hat Security Advisory: ImageMagick security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- MDKSA-2005:107 vendor-advisory
- oval:org.mitre.oval:def:10003 vdb-entry signature
- 13351 vdb-entry
- 20050424 [Overflow.pl] ImageMagick ReadPNMImage() Heap Overflow mailing-list
- http://www.overflow.pl/adv/imheapoverflow.txt
- http://www.imagemagick.org/script/changelog.php
- http://bugs.gentoo.org/show_bug.cgi?id=90423
- oval:org.mitre.oval:def:711 vdb-entry signature
- RHSA-2005:413 vendor-advisory