🛡️ CVE-2009-0033 — tomcat
Description
Apache Tomcat Denial of Service via Malformed Request Headers
Apache Tomcat 4.1.0 through 4.1.39, 5.5.0 through 5.5.27, and 6.0.0 through 6.0.18, when the Java AJP connector and mod_jk load balancing are used, allows remote attackers to cause a denial of service (application outage) via a crafted request with invalid headers, related to temporary blocking of connectors that have encountered errors, as demonstrated by an error involving a malformed HTTP Host header.
Weakness class
CVE-2009-0033 is classified as CWE-20: Improper Input Validation. The application accepts input without checking that it has the expected form, so malformed values reach code that assumes they are well formed.
Affected software
CVE-2009-0033 is recorded against 1 package.
- org.apache.tomcat:tomcat (from 6.0.0)
Timeline and source
Published on 2 May 2022 and last revised on 23 January 2024. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
nvd.nist.gov (Advisory)
www.redhat.com (Web)
www.redhat.com (Web)
www.redhat.com (Web)
oval.cisecurity.org (Web)
oval.cisecurity.org (Web)
oval.cisecurity.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
lists.apache.org (Web)
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| org.apache.tomcat:tomcat | 6.0.0 | — |
References
Similar Threats
- Unknown CLSA-2025-1751500955
- Unknown CLSA-2025-1753056170
- Unknown CLSA-2025-1756253007
- Unknown CLSA-2025-1761005194
- Unknown CLSA-2025-1763338014
More CVE 2009 advisories
Browse all of CVE 2009 in the advisory index.
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