GLSA 201203-22: nginx: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	high
Title:	nginx: Multiple vulnerabilities
Date:	03/28/2012
Bugs:	#293785, #293786, #293788, #389319, #408367
ID:	201203-22

Synopsis

Multiple vulnerabilities have been found in nginx, the worst of which may allow execution of arbitrary code.

Background

nginx is a robust, small, and high performance HTTP and reverse proxy server.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
www-servers/nginx	< 1.0.14	>= 1.0.14	All supported architectures

Description

Multiple vulnerabilities have been found in nginx:

The TLS protocol does not properly handle session renegotiation requests (CVE-2009-3555).
The "ngx_http_process_request_headers()" function in ngx_http_parse.c could cause a NULL pointer dereference (CVE-2009-3896).
nginx does not properly sanitize user input for the the WebDAV COPY or MOVE methods (CVE-2009-3898).
The "ngx_resolver_copy()" function in ngx_resolver.c contains a boundary error which could cause a heap-based buffer overflow (CVE-2011-4315).
nginx does not properly parse HTTP header responses which could expose sensitive information (CVE-2012-1180).

Impact

A remote attacker could possibly execute arbitrary code with the privileges of the nginx process, cause a Denial of Service condition, create or overwrite arbitrary files, or obtain sensitive information.

Workaround

There is no known workaround at this time.

Resolution

All nginx users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=www-servers/nginx-1.0.14"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201203-22.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.