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Apache apr-util Library and Environment Variable Expansion Vulnerabilities
Secunia Advisory: SA12540
Release Date: 2004-09-15
Last Update: 2004-09-18
Popularity: 23,679 views

Critical:
Moderately critical
Impact: Privilege escalation
DoS
System access
Where: From remote
Solution Status: Vendor Patch

Software:Apache 2.0.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Two vulnerabilities have been reported in Apache, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a system, or by malicious, local users to gain escalated privileges.

1) An input validation error within the apr-util library's IPv6 URI parsing functionality can be exploited via a specially crafted request.

Successful exploitation crashes a httpd child process. However, it is reportedly believed that the vulnerability may allow code execution on BSD systems.

The vulnerability affects versions 2.0.35 through 2.0.50.

2) A boundary error within the expansion of environment variables when parsing configuration files can be exploited to cause a buffer overflow via a specially crafted ".htaccess" file.

Successful exploitation may allow a malicious, local user to gain escalated privileges.

The vulnerability affects versions 2.0.35 through 2.0.50.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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