Libapreq2 apreq_parse_headers and apreq_parse_urlencoded denial of service
| libapreq2-parsing-dos (24917) |  Low Risk |
Description:
Libapreq2 is vulnerable to a denial of service attack, caused by an unspecified vulnerability in the apreq_parse_headers() and apreq_parse_urlencoded() functions regarding quadratic behavior.
Platforms Affected:
- Debian, Debian Linux 3.1
- Gentoo, Linux
- Libapreq2, Libapreq2 1.0
- Libapreq2, Libapreq2 1.1
- Libapreq2, Libapreq2 1.2
- Libapreq2, Libapreq2 1.3
- Libapreq2, Libapreq2 1.33
- Libapreq2, Libapreq2 2.01 Dev
- Libapreq2, Libapreq2 2.02 Dev
- Libapreq2, Libapreq2 2.03 Dev
- Libapreq2, Libapreq2 2.04 Dev
- Libapreq2, Libapreq2 2.05 Dev
- Libapreq2, Libapreq2 2.06 Dev
Remedy:
Upgrade to the latest version of Libapreq2 (2.07 or later), available from the Apache Software Foundation Web site. See References.
For Debian GNU/Linux:
Refer to DSA-1000-1 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2006-04-08 for patch, upgrade, or suggested workaround information. See References.
Consequences:
Denial of Service
References:
- Apache Software Foundation Web site, View of /httpd/apreq/tags/v2_07/CHANGES at http://svn.apache.org/viewcvs.cgi/httpd/apreq/tags/v2_07/CHANGES?rev=376998&view=markup.
- BID-16710: Apache Libapreq2 Quadratic Behavior Denial of Service Vulnerability
- CVE-2006-0042: Unspecified vulnerability in (1) apreq_parse_headers and (2) apreq_parse_urlencoded functions in Apache2::Request (Libapreq2) before 2.07 allows remote attackers cause a denial of service (CPU consumption) via unknown attack vectors that result in quadratic computational complexity.
- DSA-1000: libapreq2-perl -- design error
- GLSA-200604-08: libapreq2: Denial of Service vulnerability
- SA18846: Libapreq2 Unspecified Vulnerability
- VUPEN/ADV-2006-0645: Libapreq2 headers and urlencoded Denial of Service Vulnerability
Reported:
Feb 17, 2006
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