Description
NGINX before 1.13.6 has a buffer overflow for years that exceed four digits, as demonstrated by a file with a modification date in 1969 that causes an integer overflow (or a false modification date far in the future), when encountered by the autoindex module.
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 | nginx | 1.13.6-1 | — |
| Debian 13 | nginx | 1.13.6-1 | — |
| Debian 12 | nginx | 1.13.6-1 | — |
| Debian 9 | nginx | 1.10.3-1+deb9u7 | DLA-2680-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 16.04 LTS | nginx | 1.10.3-0ubuntu0.16.04.5+esm2 | USN-5109-1 |
| Ubuntu Pro 14.04 LTS | nginx | 1.4.6-1ubuntu3.9+esm3 | USN-5109-1 |
Advisories 2
- USN-5109-1 nginx vulnerability Ubuntu Security Notices (USN) · Jun 29, 2026
- DLA-2680-1 nginx - security update Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://nginx.org/en/CHANGES
- https://trac.nginx.org/nginx/ticket/1368
- https://github.com/nginx/nginx/commit/0206ebe76f748bb39d9de4dd4b3fce777fdfdccf
- https://github.com/nginx/nginx/commit/b900cc28fcbb4cf5a32ab62f80b59292e1c85b4b
- [debian-lts-announce] 20210607 [SECURITY] [DLA 2680-1] nginx security update mailing-list
- https://security.netapp.com/advisory/ntap-20210805-0006/