Resource exhaustion in Apache Http Server
CVE-2011-3348
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.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.224 (97.4th percentile) — read the EPSS interpretation.
Affected products
- Apache Http_server
- Redhat Enterprise_linux — versions 6.0, 7.0
- Redhat Jboss_enterprise_web_server — versions 1.0.0
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_HP, vendor-advisory, Mailing List, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_XF)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (signature, x_refsource_OVAL, Third Party Advisory, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_HP, vendor-advisory, Mailing List, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, x_refsource_MANDRIVA, Broken Link)
- secalert@redhat.com (vendor-advisory, x_refsource_APPLE, Mailing List, Broken Link)
Frequently asked questions
- What is CVE-2011-3348?
- CVE-2011-3348 is a vulnerability in Apache Http Server, classified under Uncontrolled Resource Consumption. Published 2011-09-20.
- Is CVE-2011-3348 known to be exploited?
- 12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.