[ GLSA 200501-07 ] xine-lib: Multiple overflows

[GLSA]

Gentoo Linux Security Advisory

Title: xine-lib: Multiple overflows (GLSA 200501-07)
Severity: normal
Exploitable: remote
Date: January 06, 2005
Bug(s): #74475
ID: 200501-07

Synopsis

xine-lib contains multiple overflows potentially allowing execution of arbitrary code.

Background

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

Affected Packages

Package: media-libs/xine-lib
Vulnerable: < 1_rc8-r1
Unaffected: >= 1_rc8-r1
Unaffected: >= 1_rc6-r1 < 12
Architectures: All supported architectures


Description

Ariel Berkman discovered that xine-lib reads specific input data into an array without checking the input size in demux_aiff.c, making it vulnerable to a buffer overflow (CAN-2004-1300) . iDefense discovered that the PNA_TAG handling code in pnm_get_chunk() does not check if the input size is larger than the buffer size (CAN-2004-1187). iDefense also discovered that in this same function, a negative value could be given to an unsigned variable that specifies the read length of input data (CAN-2004-1188).

Impact

A remote attacker could craft a malicious movie or convince a targeted user to connect to a malicious PNM server, which could result in the execution of arbitrary code with the rights of the user running any xine-lib frontend.

Workaround

There is no known workaround at this time.

Resolution

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