GLSA 200409-30: xine-lib: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	xine-lib: Multiple vulnerabilities
Date:	09/22/2004
Bugs:	#64348
ID:	200409-30

Synopsis

xine-lib contains several vulnerabilities potentially allowing the execution of arbitrary code.

Background

xine-lib is a multimedia library which can be utilized to create multimedia frontends.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-libs/xine-lib	<= 1_rc5-r3	>= 1_rc6	All supported architectures

Description

xine-lib contains two stack-based overflows and one heap-based overflow. In the code reading VCD disc labels, the ISO disc label is copied into an unprotected stack buffer of fixed size. Also, there is a buffer overflow in the code that parses subtitles and prepares them for display (XSA-2004-4). Finally, xine-lib contains a heap-based overflow in the DVD sub-picture decoder (XSA-2004-5).

(Please note that the VCD MRL issue mentioned in XSA-2004-4 was fixed with GLSA 200408-18.)

Impact

With carefully-crafted VCDs, DVDs, MPEGs or subtitles, an attacker may cause xine-lib to execute arbitrary code with the permissions of the user.

Workaround

There is no known workaround at this time.

Resolution

All xine-lib users should upgrade to the latest version:

    # emerge sync
    
    # emerge -pv ">=media-libs/xine-lib-1_rc6"
    # emerge ">=media-libs/xine-lib-1_rc6"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200409-30.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.