CVE-2022-41556

Name
CVE-2022-41556
Description
A resource leak in gw_backend.c in lighttpd 1.4.56 through 1.4.66 could lead to a denial of service (connection-slot exhaustion) after a large amount of anomalous TCP behavior by clients. It is related to RDHUP mishandling in certain HTTP/1.1 chunked situations. Use of mod_fastcgi is, for example, affected. This is fixed in 1.4.67.
NVD Severity
medium
Other trackers
Mailing lists
Exploits
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
MISC https://github.com/lighttpd/lighttpd1.4/pull/115
MISC https://git.lighttpd.net/lighttpd/lighttpd1.4/commit/b18de6f9264f914f7bf493abd3b6059343548e50
MISC https://github.com/lighttpd/lighttpd1.4/compare/lighttpd-1.4.66...lighttpd-1.4.67
GENTOO https://security.gentoo.org/glsa/202210-12
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OVOSBSCMLGCHH2Z74H64ZWVDFJFQTBC2/

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:lighttpd:lighttpd:*:*:*:*:*:*:*:* lighttpd >= 1.4.56 < 1.4.67

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
lighttpd 3.16-main 1.4.64-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
lighttpd 3.15-main 1.4.64-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
lighttpd 3.14-main 1.4.64-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
lighttpd 3.13-main 1.4.64-r0 Natanael Copa <ncopa@alpinelinux.org> possibly vulnerable
lighttpd edge-main 1.4.67-r0 Natanael Copa <ncopa@alpinelinux.org> fixed
lighttpd 3.17-main 1.4.67-r0 Natanael Copa <ncopa@alpinelinux.org> fixed