CVE-2011-3348

medium Apache
CVSS v3 Base Score
4.3
AV:N/AC:M/Au:N/C:N/I:N/A:P
EPSS Score
34.0%
Exploitation probability in 30 days
Top 3% most likely to be exploited
Attack Characteristics
Attack Vector
Network
Attack Complexity
M
Confidentiality
None
Integrity
None
Availability
P
Published: September 20, 2011 (5350 days ago)
Last Modified: April 29, 2026
Vendor: Apache
Source: NVD

Description

The mod_proxy_ajp module in the Apache HTTP Server before 2.2.21, when used with mod_proxy_balancer in certain configurations, allows remote attackers to cause a denial of service (temporary "error state" in the backend server) via a malformed HTTP request.

CWE

CWE-400

Affected Products

apache http serverredhat jboss enterprise web server

References

🔗 community.jboss.org 🔗 httpd.apache.org 🔗 lists.apple.com 🔗 marc.info 🔗 marc.info