Public Date:
878213: CVE-2012-5533 lighttpd: Denial of Service via malformed Connection headers

The MITRE CVE dictionary describes this issue as:

The http_request_split_value function in request.c in lighttpd before 1.4.32 allows remote attackers to cause a denial of service (infinite loop) via a request with a header containing an empty token, as demonstrated using the "Connection: TE,,Keep-Alive" header.

Find out more about CVE-2012-5533 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 5
Base Metrics AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).


Red Hat would like to thank Stefan Bühler for reporting this issue. Upstream acknowledges Jesse Sipprell from McClatchy Interactive, Inc. as the original reporter.