01 Record
CVE-2011-0534
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
UnratedPUBLISHEDCNA: redhat
CNA base scoreUnratedNo CNA CVSS vector
02 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
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
- 7.88% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 94.6% 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
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
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
- 2011-02-10 17:00Z15 YR AGO
- Last updated
- 2024-08-06 21:58Z2 YR AGO
- Reserved
- 2011-01-20
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 4b2ed9f1092112ec226bd20b99544220ff63cdd334061700a907f64d7d4377bb
05 Affected products
VendorProductVersionsPlatforms
06 References
- securityreason.com8074http://securityreason.com/securityalert/8074
- www.securitytracker.com1025027http://www.securitytracker.com/id?1025027
- secunia.com45022http://secunia.com/advisories/45022
- lists.opensuse.orgSUSE-SR:2011:005http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00000.html
- osvdb.org70809http://osvdb.org/70809
- www.securityfocus.com20110205 [SECURITY] CVE-2011-0534 Apache Tomcat DoS vulnerabilityhttp://www.securityfocus.com/archive/1/516214/100/0/threaded
- lists.apple.comAPPLE-SA-2011-10-12-3http://lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
- www.vupen.comADV-2011-0293http://www.vupen.com/english/advisories/2011/0293
- secunia.com57126http://secunia.com/advisories/57126
- exchange.xforce.ibmcloud.comtomcat-nio-connector-dos(65162)https://exchange.xforce.ibmcloud.com/vulnerabilities/65162
- www.securityfocus.com46164http://www.securityfocus.com/bid/46164
- secunia.com43192http://secunia.com/advisories/43192
- www.debian.orgDSA-2160http://www.debian.org/security/2011/dsa-2160
- support.apple.comhttp://support.apple.com/kb/HT5002
- tomcat.apache.orghttp://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.8_%28released_5_Feb_2011%29
- marc.infoHPSBST02955http://marc.info/?l=bugtraq&m=139344343412337&w=2
- support.novell.comhttp://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5098550.html
- tomcat.apache.orghttp://tomcat.apache.org/security-6.html#Fixed_in_Apache_Tomcat_6.0.32