CVE-2011-4362
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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 21.10% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 97.4% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2011-12-24 19:00Z14 YR AGO
- Last updated
- 2024-08-07 00:09Z2 YR AGO
- Reserved
- 2011-11-04
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 16b2ebe599cf69ff143e37dd83fb6489c85f86b058fee4a809b34a5c942a92b1
05 Affected products
06 References
- secunia.com47260http://secunia.com/advisories/47260
- archives.neohapsis.com20111224 Lighttpd Proof of Concept code for CVE-2011-4362http://archives.neohapsis.com/archives/bugtraq/2011-12/0167.html
- www.openwall.com[oss-security] 20111129 CVE Request: lighttpd/mod_auth out-of-bounds read due to signedness errorhttp://www.openwall.com/lists/oss-security/2011/11/29/8
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=758624
- www.debian.orgDSA-2368http://www.debian.org/security/2011/dsa-2368
- www.exploit-db.com18295http://www.exploit-db.com/exploits/18295
- blog.pi3.com.plhttp://blog.pi3.com.pl/?p=277
- download.lighttpd.nethttp://download.lighttpd.net/lighttpd/security/lighttpd_sa_2011_01.txt
- www.openwall.com[oss-security] 20111129 Re: CVE Request: lighttpd/mod_auth out-of-bounds read due to signedness errorhttp://www.openwall.com/lists/oss-security/2011/11/29/13
- www.securitytracker.com1026359http://www.securitytracker.com/id?1026359
- exchange.xforce.ibmcloud.comlighttpd-base64-dos(71536)https://exchange.xforce.ibmcloud.com/vulnerabilities/71536
- redmine.lighttpd.nethttp://redmine.lighttpd.net/issues/2370
- jvn.jpJVN#37417423http://jvn.jp/en/jp/JVN37417423/index.html
07 Fixed in
Debian 12
- lighttpd Fixed in 1.4.30-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- lighttpd Fixed in 1.4.30-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- lighttpd Fixed in 1.4.30-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.