Description
In GNU Libextractor 1.4, there is a heap-based buffer overflow in the EXTRACTOR_png_extract_method function in plugins/png_extractor.c, related to processiTXt and stndup.
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 | libextractor | 1:1.6-1 | — |
| Debian 13 | libextractor | 1:1.6-1 | — |
| Debian 12 | libextractor | 1:1.6-1 | — |
| Debian 7 | libextractor | 1:0.6.3-5+deb7u1 | DLA-1198-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | libextractor | 1:1.3-4+deb9u3build0.16.04.1 | USN-4641-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | libextractor | No fix yet | — |
Advisories 2
- USN-4641-1 libextractor vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-1198-1 libextractor - security update Debian Security (DSA / DLA) · Mar 9, 2026