CVE-2011-1176

Name	CVE-2011-1176
Description	The configuration merger in itk.c in the Steinar H. Gunderson mpm-itk Multi-Processing Module 2.2.11-01 and 2.2.11-02 for the Apache HTTP Server does not properly handle certain configuration sections that specify NiceValue but not AssignUserID, which might allow remote attackers to gain privileges by leveraging the root uid and root gid of an mpm-itk process.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DSA-2202-1
Debian Bugs	618857

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
apache2 (PTS)	buster	2.4.38-3+deb10u8	fixed
	buster (security)	2.4.38-3+deb10u10	fixed
	bullseye	2.4.56-1~deb11u2	fixed
	bullseye (security)	2.4.56-1~deb11u1	fixed
	bookworm, sid	2.4.57-2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
apache2	source	lenny	(not affected)
apache2	source	squeeze	2.2.16-6+squeeze1		DSA-2202-1
apache2	source	(unstable)	2.2.17-2	medium		618857
apache2-mpm-itk	source	lenny	(not affected)
apache2-mpm-itk	source	(unstable)	(unfixed)

Notes

[lenny] - apache2 <not-affected> (different source package in lenny: apache2-mpm-itk)
[lenny] - apache2-mpm-itk <not-affected> (bug was introduced later, in 2.2.11-01)