Debian Security Advisory DSA 2559-1 (libexif)

Published: 2012-10-22 12:42:32
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:
AV:N/AC:L/Au:N/C:P/I:P/A:P

Technical Details:
Several vulnerabilities were found in libexif, a library used to parse EXIF meta-data on camera files. CVE-2012-2812: A heap-based out-of-bounds array read in the exif_entry_get_value function allows remote attackers to cause a denial of service or possibly obtain potentially sensitive information from process memory via an image with crafted EXIF tags. CVE-2012-2813: A heap-based out-of-bounds array read in the exif_convert_utf16_to_utf8 function allows remote attackers to cause a denial of service or possibly obtain potentially sensitive information from process memory via an image with crafted EXIF tags. CVE-2012-2814: A buffer overflow in the exif_entry_format_value function allows remote attackers to cause a denial of service or possibly execute arbitrary code via an image with crafted EXIF tags. CVE-2012-2836: A heap-based out-of-bounds array read in the exif_data_load_data function allows remote attackers to cause a denial of service or possibly obtain potentially sensitive information from process memory via an image with crafted EXIF tags. CVE-2012-2837: A divide-by-zero error in the mnote_olympus_entry_get_value function while formatting EXIF maker note tags allows remote attackers to cause a denial of service via an image with crafted EXIF tags. CVE-2012-2840: An off-by-one error in the exif_convert_utf16_to_utf8 function allows remote attackers to cause a denial of service or possibly execute arbitrary code via an image with crafted EXIF tags. CVE-2012-2841: An integer underflow in the exif_entry_get_value function can cause a heap overflow and potentially arbitrary code execution while formatting an EXIF tag, if the function is called with a buffer size parameter equal to zero or one. For the stable distribution (squeeze), these problems have been fixed in version 0.6.19-1+squeeze1. For the testing distribution (wheezy), these problems have been fixed in version 0.6.20-3. For the unstable distribution (sid), these problems have been fixed in version 0.6.20-3.

Recommendations:
We recommend that you upgrade your libexif Linux Distribution Packages.

Summary:
The remote host is missing an update to libexif announced via advisory DSA 2559-1.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

https://nvd.nist.gov/vuln/detail/CVE-2012-2812
https://nvd.nist.gov/vuln/detail/CVE-2012-2813
https://nvd.nist.gov/vuln/detail/CVE-2012-2814
https://nvd.nist.gov/vuln/detail/CVE-2012-2836
https://nvd.nist.gov/vuln/detail/CVE-2012-2837
https://nvd.nist.gov/vuln/detail/CVE-2012-2840
https://nvd.nist.gov/vuln/detail/CVE-2012-2841

References:

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%202559-1

Severity
High
CVSS Score
7.5
Published
2012-10-22
Modified
2019-03-18
Category
Debian Local Security Checks

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