Description
src/http/ngx_http_parse.c in nginx (aka Engine X) 0.1.0 through 0.4.14, 0.5.x before 0.5.38, 0.6.x before 0.6.39, 0.7.x before 0.7.62, and 0.8.x before 0.8.14 allows remote attackers to cause a denial of service (NULL pointer dereference and worker process crash) via a long URI.
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 | 0.7.62-1 | — |
| Debian 13 | nginx | 0.7.62-1 | — |
| Debian 12 | nginx | 0.7.62-1 | — |
| Debian 5.0 | nginx | 0.6.32-3+lenny3 | DSA-1920-1 |
| Debian 4.0 | nginx | 0.4.13-2+etch3 | DSA-1920-1 |
Advisories 1
- DSA-1920-1 nginx - denial of service Debian Security (DSA / DLA) · Mar 9, 2026
References
- http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=552035
- FEDORA-2009-12750 vendor-advisory
- 36839 vdb-entry
- [oss-security] 20091123 Re: CVEs for nginx mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=539565
- FEDORA-2009-12775 vendor-advisory
- http://security.debian.org/pool/updates/main/n/nginx/nginx_0.4.13-2+etch3.diff.gz
- FEDORA-2009-12782 vendor-advisory
- DSA-1920 vendor-advisory
- 48577 third-party-advisory
- [oss-security] 20091120 CVE Assignment nginx mailing-list
- http://sysoev.ru/nginx/patch.null.pointer.txt
- [oss-security] 20091120 CVEs for nginx mailing-list
- GLSA-201203-22 vendor-advisory
- [nginx] 20091030 Re: null pointer dereference vulnerability in 0.1.0-0.8.13. mailing-list