Description
mod_auth (http_auth.c) in lighttpd before 1.4.16 allows remote attackers to cause a denial of service (daemon crash) via unspecified vectors involving (1) a memory leak, (2) use of md5-sess without a cnonce, (3) base64 encoded strings, and (4) trailing whitespace in the Auth-Digest header.
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 | lighttpd | 1.4.16-1 | — |
| Debian 13 | lighttpd | 1.4.16-1 | — |
| Debian 12 | lighttpd | 1.4.16-1 | — |
| Debian 4.0 | lighttpd | 1.4.13-4etch4 | DSA-1362-1 |
Advisories 1
- DSA-1362-1 lighttpd - several vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
References
- 26158 third-party-advisory
- 38314 vdb-entry
- ADV-2007-2585 vdb-entry
- https://issues.rpath.com/browse/RPL-1550
- 26130 third-party-advisory
- 38316 vdb-entry
- 20070719 rPSA-2007-0145-1 lighttpd mailing-list
- 24967 vdb-entry
- 38317 vdb-entry
- 26593 third-party-advisory
- DSA-1362 vendor-advisory
- http://trac.lighttpd.net/trac/changeset/1875
- GLSA-200708-11 vendor-advisory
- http://trac.lighttpd.net/trac/browser/branches/lighttpd-1.4.x/NEWS?rev=1875
- https://issues.rpath.com/browse/RPL-1554
- SUSE-SR:2007:015 vendor-advisory
- 38315 vdb-entry
- 26505 third-party-advisory