Description
There is a reachable assertion abort in the function TIFFWriteDirectoryTagSubifd() in LibTIFF 4.0.8, related to tif_dirwrite.c and a SubIFD tag. A crafted input will lead to a remote denial of service attack.
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 | tiff | 4.0.8-5 | — |
| Debian 13 | tiff | 4.0.8-5 | — |
| Debian 12 | tiff | 4.0.8-5 | — |
| Debian 9 | tiff | 4.0.8-2+deb9u2 | DSA-4100-1 |
| Debian 8 | tiff | 4.0.3-12.3+deb8u5 | DSA-4100-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | tiff | 4.0.2-6+deb7u16 | DLA-1093-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | tiff | 4.0.6-1ubuntu0.3 | USN-3602-1 |
| Ubuntu 14.04 LTS | tiff | 4.0.3-7ubuntu0.8 | USN-3602-1 |
Advisories 3
- USN-3602-1 tiff vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-4100-1 tiff - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1093-1 tiff - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- 100524 vdb-entry
- USN-3602-1 vendor-advisory
- http://bugzilla.maptools.org/show_bug.cgi?id=2728
- DSA-4100 vendor-advisory