Description
A vulnerability was found in htmldoc version 1.9.15 where the stack out-of-bounds read takes place in gif_get_code() and occurs when opening a malicious GIF file, which can result in a crash (segmentation fault).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | htmldoc | htmldoc 1.9.15 | — |
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 | htmldoc | 1.9.15-1 | — |
| Debian 13 | htmldoc | 1.9.15-1 | — |
| Debian 12 | htmldoc | 1.9.15-1 | — |
| Debian 9 | htmldoc | 1.8.27-8+deb9u2 | DLA-2928-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | htmldoc | 1.9.17-1ubuntu0.1~esm1 | USN-7225-1 |
| Ubuntu Pro 22.04 LTS | htmldoc | 1.9.15-1ubuntu0.1~esm1 | USN-7225-1 |
| Ubuntu Pro 20.04 LTS | htmldoc | 1.9.7-1ubuntu0.3+esm2 | USN-7225-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | htmldoc | 1.9.2-1ubuntu0.2+esm2 | USN-7225-1 |
| Ubuntu Pro 16.04 LTS | htmldoc | 1.8.27-8ubuntu1.1+esm3 | USN-7225-1 |
| Ubuntu Pro 14.04 LTS | htmldoc | 1.8.27-8ubuntu1+esm4 | USN-7225-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SUSE Subscription Management Tool 11 SP3 | htmldoc | 1.8.27-170.4.9.1 | SUSE-SU-2022:14898-1 |
Advisories 3
- USN-7225-1 HTMLDOC vulnerabilities Ubuntu Security Notices (USN) · Jun 25, 2026
- DLA-2928-1 htmldoc - security update Debian Security (DSA / DLA) · Mar 9, 2026
- SUSE-SU-2022:14898-1 Security update for htmldoc SUSE / openSUSE Security Updates · Feb 4, 2026