CVE-2011-4362

Description

Integer 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.

How to fix CVE-2011-4362

To remediate CVE-2011-4362, upgrade the affected package to a fixed version below.

• Debian/lighttpd—upgrade to 1.4.30-1 or later

Is CVE-2011-4362 being exploited?

Low — EPSS is 4.4%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 1.4.30-1

References (1)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2011-4362