SB2011110801 - Heap-based buffer overflow in Apache HTTP Server 

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Main Vulnerability Database SB2011110801

SB2011110801 - Heap-based buffer overflow in Apache HTTP Server

Published: November 8, 2011 Updated: July 28, 2020

Security Bulletin ID SB2011110801
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) Heap-based buffer overflow (CVE-ID: CVE-2011-3607)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in 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,. A remote attacker can use a .htaccess file with a crafted SetEnvIf directive to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.

References