JasPer: User-assisted execution of arbitrary code

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Updated December 16, 2008

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200812-18 / jasper
Release Date	December 16, 2008
Latest Revision	December 16, 2008: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
media-libs/jasper	< 1.900.1-r3	>= 1.900.1-r3	All supported architectures

Related bugreports: #222819

Synopsis

Multiple memory management errors in JasPer might lead to execution of arbitrary code via jpeg2k files.

2. Impact Information

Background

The JasPer Project is an open-source initiative to provide a free software-based reference implementation of the codec specified in the JPEG-2000 Part-1 (jpeg2k) standard.

Description

Marc Espie and Christian Weisgerber have discovered multiple vulnerabilities in JasPer:

Multiple integer overflows might allow for insufficient memory allocation, leading to heap-based buffer overflows (CVE-2008-3520).
The jas_stream_printf() function in libjasper/base/jas_stream.c uses vsprintf() to write user-provided data to a static to a buffer, leading to an overflow (CVE-2008-3522).

Impact

Remote attackers could entice a user or automated system to process specially crafted jpeg2k files with an application using JasPer, possibly leading to the execution of arbitrary code.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All JasPer users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/jasper-1.900.1-r3"

4. References