Description
Gifsicle gifview 1.89 and older is vulnerable to a use-after-free in the read_gif function resulting potential code execution
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 | gifsicle | 1.90-1 | — |
| Debian 13 | gifsicle | 1.90-1 | — |
| Debian 12 | gifsicle | 1.90-1 | — |
| Debian 9 | gifsicle | 1.88-3+deb9u1 | DSA-4084-1 |
| Debian 8 | gifsicle | 1.86-1+deb8u1 | DSA-4084-1 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 7 | gifsicle | 1.67-1.1~deb7u1 | DLA-1233-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | gifsicle | 1.88-1ubuntu0.1~esm1 | USN-4803-1 |
| Ubuntu Pro 14.04 LTS | gifsicle | 1.78-1ubuntu0.1~esm1 | USN-4803-1 |
Advisories 3
- USN-4803-1 gifsicle vulnerabilities Ubuntu Security Notices (USN) · Jun 29, 2026
- DSA-4084-1 gifsicle - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1233-1 gifsicle - security update Debian Security (DSA / DLA) · Mar 9, 2026