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Gentoo Linux Security Advisory                           GLSA 200712-15
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                                            https://security.gentoo.org/
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  Severity: Normal
     Title: libexif: Multiple vulnerabilities
      Date: December 29, 2007
      Bugs: #202350
        ID: 200712-15

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Synopsis
=======
Two vulnerabilities in libexif possibly allow for the execution of
arbitrary code or a Denial of Service.

Background
=========
libexif is a library for parsing, editing and saving Exif metadata from
images. Exif, the Exchangeable image file format, specifies the
addition of metadata tags to JPEG, TIFF and RIFF files.

Affected packages
================
    -------------------------------------------------------------------
     Package             /   Vulnerable   /                 Unaffected
    -------------------------------------------------------------------
  1  media-libs/libexif      < 0.6.16-r1                  >= 0.6.16-r1

Description
==========
Meder Kydyraliev (Google Security) discovered an integer overflow
vulnerability in the exif_data_load_data_thumbnail() function leading
to a memory corruption (CVE-2007-6352) and an infinite recursion in the
exif_loader_write() function (CVE-2007-6351).

Impact
=====
An attacker could entice the user of an application making use of
libexif to load an image file with specially crafted Exif tags,
possibly resulting in the execution of arbitrary code with the
privileges of the user running the application or a Denial of Service.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All libexif users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-libs/libexif-0.6.16-r1"

References
=========
  [ 1 ] CVE-2007-6351
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6351
  [ 2 ] CVE-2007-6352
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6352

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/200712-15

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/.

License
======
Copyright 2007 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5/
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Gentoo: GLSA-200712-15: libexif: Multiple vulnerabilities

Two vulnerabilities in libexif possibly allow for the execution of arbitrary code or a Denial of Service.

Summary

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Gentoo Linux Security Advisory                           GLSA 200712-15
                                            https://security.gentoo.org/

Severity: Normal Title: libexif: Multiple vulnerabilities Date: December 29, 2007 Bugs: #202350 ID: 200712-15

Synopsis ======= Two vulnerabilities in libexif possibly allow for the execution of arbitrary code or a Denial of Service.
Background ========= libexif is a library for parsing, editing and saving Exif metadata from images. Exif, the Exchangeable image file format, specifies the addition of metadata tags to JPEG, TIFF and RIFF files.
Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-libs/libexif < 0.6.16-r1 >= 0.6.16-r1
========== Meder Kydyraliev (Google Security) discovered an integer overflow vulnerability in the exif_data_load_data_thumbnail() function leading to a memory corruption (CVE-2007-6352) and an infinite recursion in the exif_loader_write() function (CVE-2007-6351).
Impact ===== An attacker could entice the user of an application making use of libexif to load an image file with specially crafted Exif tags, possibly resulting in the execution of arbitrary code with the privileges of the user running the application or a Denial of Service.
Workaround ========= There is no known workaround at this time.
Resolution ========= All libexif users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libexif-0.6.16-r1"
References ========= [ 1 ] CVE-2007-6351 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6351 [ 2 ] CVE-2007-6352 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6352
Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/200712-15
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/.
License ====== Copyright 2007 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - iD8DBQFHdkaKuhJ+ozIKI5gRAs1UAJ4qtBDcz/dP/WRokGqWDsVGBR3jmgCfafCh UystxWJaY5guiFl40Grh+KY=R59E -----END PGP SIGNATURE-----

Resolution

References

Availability

Concerns

Severity

Synopsis

Background

Affected Packages

Impact

Workaround

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