CVE-2011-4362

NameCVE-2011-4362
DescriptionInteger signedness error in the base64_decode function in the HTTP authentication functionality (http_auth.c) in lighttpd 1.4 before 1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to cause a denial of service (segmentation fault) via crafted base64 input that triggers an out-of-bounds read with a negative index.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-2368-1
Debian Bugs652726

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
lighttpd (PTS)bullseye (security), bullseye1.4.59-1+deb11u2fixed
bookworm1.4.69-1fixed
sid, trixie1.4.76-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
lighttpdsourcelenny1.4.19-5+lenny3DSA-2368-1
lighttpdsourcesqueeze1.4.28-2+squeeze1DSA-2368-1
lighttpdsource(unstable)1.4.30-1low652726

Notes

http://openwall.com/lists/oss-security/2011/11/29/8
http://redmine.lighttpd.net/issues/2370
the announcement says that the debian package is not affected, but there are no additional patches that would cause different behavior (i.e. the base64_reverse_table is the same in debian and upstream), so if upstream is affected, so too is the debian package

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