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[ GLSA 200503-17 ] libexif: Buffer overflow vulnerability
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GLSA
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PostPosted: Sat Mar 12, 2005 8:45 pm    Post subject: [ GLSA 200503-17 ] libexif: Buffer overflow vulnerability Reply with quote

Gentoo Linux Security Advisory

Title: libexif: Buffer overflow vulnerability (GLSA 200503-17)
Severity: normal
Exploitable: remote
Date: March 12, 2005
Bug(s): #84076
ID: 200503-17

Synopsis

libexif fails to validate certain inputs, making it vulnerable to buffer overflows.

Background

libexif is a library for parsing, editing and saving EXIF data.

Affected Packages

Package: media-libs/libexif
Vulnerable: < 0.5.12-r1
Unaffected: >= 0.5.12-r1
Architectures: All supported architectures


Description

libexif contains a buffer overflow vulnerability in the EXIF tag validation code. When opening an image with a specially crafted EXIF tag, the lack of validation can cause applications linked to libexif to crash.

Impact

A specially crafted EXIF file could crash applications making use of libexif, potentially allowing the execution of arbitrary code with the privileges of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All libexif users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libexif-0.5.12-r1"


References

CAN-2005-0664


Last edited by GLSA on Sun Jul 30, 2006 4:17 am; edited 3 times in total
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