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.
Remediation
References
Related Vulnerabilities
Ruby Cryptographic Issues Vulnerability (CVE-2013-4363)
Piwigo Improper Access Control Vulnerability (CVE-2016-10105)
phpList Access of Resource Using Incompatible Type ('Type Confusion') Vulnerability (CVE-2020-8547)
WordPress Plugin FeedWordPress Multiple Vulnerabilities (2015.0426)
Oracle HTTP Server CVE-2021-2480 Vulnerability (CVE-2021-2480)