CVE-2011-3192 Denial of service in n/a

What is CVE-2011-3192?

CVE-2011-3192 is a high-severity denial of service vulnerability in Apache Http Server, published on 29 Aug 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The byterange filter in the Apache HTTP Server 1.3.x, 2.0.x through 2.0.64, and 2.2.x through 2.2.19 allows remote attackers to cause a denial of service (memory and CPU consumption) via a Range header that expresses multiple overlapping ranges, as exploited in the wild in August 2011, a different vulnerability than CVE-2007-0086.

Weakness: CWE-400

Which versions are affected by CVE-2011-3192?

It affects 5 products.

Products include Apache Http Server, Canonical Ubuntu Linux, Opensuse Opensuse, Suse Linux Enterprise Server, Suse Linux Enterprise Software Development Kit.

How do I fix CVE-2011-3192?

Upgrade to a fixed version.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2011-3192 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2011-3192 exists.

Public exploit code: 1 Metasploit module, 2 Exploit-DB entries and 4 proofs of concept on GitHub.

Other vulnerabilities in Apache Http Server

• CVE-2021-42013 Apache HTTP Server Path Traversal Exploited Critical 9.8
• CVE-2024-38475 Apache HTTP Server Improper Escaping of Output Exploited Critical 9.1
• CVE-2021-40438 Apache HTTP Server-Side Request Forgery (SSRF) Exploited Critical 9.0
• CVE-2019-0211 Apache HTTP Server Privilege Escalation Exploited High 7.8
• CVE-2021-41773 Apache HTTP Server Path Traversal Exploited High 7.5

All Apache Http Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2011-3192, DSA-2298-1, GHSA-r3pv-69hm-fcjw, RHSA-2011:1245, RHSA-2011:1294, RHSA-2011:1300 and 2 more.