CVE-2011-3607 Integer overflow in n/a

What is CVE-2011-3607?

CVE-2011-3607 is a medium-severity vulnerability in Apache Http Server, published on 8 Nov 2011. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Integer overflow in the ap_pregsub function in server/util.c in the Apache HTTP Server 2.0.x through 2.0.64 and 2.2.x through 2.2.21, when the mod_setenvif module is enabled, allows local users to gain privileges via a .htaccess file with a crafted SetEnvIf directive, in conjunction with a crafted HTTP request header, leading to a heap-based buffer overflow.

Weakness: CWE-189

Which versions are affected by CVE-2011-3607?

It affects 1 product.

Products include Apache Http Server.

How do I fix CVE-2011-3607?

Upgrade to a fixed version.

Is CVE-2011-3607 being exploited?

There is no known exploitation of CVE-2011-3607 in the wild and no public exploit code.

Public exploit code: 1 Exploit-DB entry.

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-2011-3607, GHSA-chqj-ghv5-hm5m.