CVE-2009-0033

medium Apache
CVSS v3 Base Score
5.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS Score
13.8%
Exploitation probability in 30 days
Top 6% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
Low
Confidentiality
None
Integrity
None
Availability
P
Published: June 5, 2009 (6187 days ago)
Last Modified: April 23, 2026
Vendor: Apache
Source: NVD

Description

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.

CWE

CWE-20

Affected Products

apache tomcat

References

🔗 jvn.jp 🔗 lists.apple.com 🔗 lists.opensuse.org 🔗 marc.info 🔗 marc.info