Description
Imager (libimager-perl) before 0.50 allows user-assisted attackers to cause a denial of service (segmentation fault) by writing a 2- or 4-channel JPEG image (or a 2-channel TGA image) to a scalar, which triggers a NULL pointer dereference.
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 | libimager-perl | 0.50-1 | — |
| Debian 13 | libimager-perl | 0.50-1 | — |
| Debian 12 | libimager-perl | 0.50-1 | — |
| Debian 3.1 | libimager-perl | 0.44-1sarge1 | DSA-1028-1 |
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
- Tony Cook Imager 0.4x - '.JPEG' / '.TGA' Images Denial of Service EDB-27581 · dos · Apr 7, 2006 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- DSA-1028-1 libimager-perl - denial of service Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-1028 vendor-advisory
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=359661
- imager-jpeg-tga-dos(25717) vdb-entry
- 17415 vdb-entry
- 19577 third-party-advisory
- ADV-2006-1294 vdb-entry
- http://rt.cpan.org/Public/Bug/Display.html?id=18397
- 19575 third-party-advisory