CVE-2011-0534

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2011-02-10 · updated 2026-06-16
Weakness: CWE-399

Description

Apache Tomcat 7.0.0 through 7.0.6 and 6.0.0 through 6.0.30 does not enforce the maxHttpHeaderSize limit for requests involving the NIO HTTP connector, which allows remote attackers to cause a denial of service (OutOfMemoryError) via a crafted request.

Affected products

Apache Tomcat: 7.0.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.0.5 (+28)

References

http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
http://marc.info/?l=bugtraq&m=139344343412337&w=2
http://osvdb.org/70809
http://secunia.com/advisories/43192
http://secunia.com/advisories/45022
http://secunia.com/advisories/57126
http://securityreason.com/securityalert/8074
http://support.apple.com/kb/HT5002
http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5098550.html
http://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.32
http://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.8_%28released_5_Feb_2011%29

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