critical
CVE-2017-20005
nginx: buffer overflow in ngx_gmtime() triggered by 5 digit years
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (high), Ubuntu (medium).
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.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| debian 11 | nginx | 1.13.6-1 |
| debian 12 | nginx | 1.13.6-1 |
| debian 13 | nginx | 1.13.6-1 |
| debian 14 | nginx | 1.13.6-1 |
| debian 9 | nginx | 1.10.3-1+deb9u7 |
| echo | nginx | 1.13.6-1 |
| root.io debian 12 | rootio-nginx | 1.13.6-1 |
| ubuntu 14.04-ESM | nginx | 1.4.6-1ubuntu3.9+esm3 |
| ubuntu 16.04-ESM | nginx | 1.10.3-0ubuntu0.16.04.5+esm2 |
References
- http://nginx.org/en/CHANGES
- https://access.redhat.com/security/cve/CVE-2017-20005
- https://github.com/nginx/nginx/commit/0206ebe76f748bb39d9de4dd4b3fce777fdfdccf
- https://github.com/nginx/nginx/commit/b900cc28fcbb4cf5a32ab62f80b59292e1c85b4b
- https://lists.debian.org/debian-lts-announce/2021/06/msg00009.html
- https://nvd.nist.gov/vuln/detail/CVE-2017-20005
- https://security.netapp.com/advisory/ntap-20210805-0006/
- https://trac.nginx.org/nginx/ticket/1368