Public Date:
1031749: CVE-2013-6630 libjpeg: information leak (read of uninitialized memory)

The MITRE CVE dictionary describes this issue as:

The get_dht function in jdmarker.c in libjpeg-turbo through 1.3.0, as used in Google Chrome before 31.0.1650.48 and other products, does not set all elements of a certain Huffman value array during the reading of segments that follow Define Huffman Table (DHT) JPEG markers, which allows remote attackers to obtain sensitive information from uninitialized memory locations via a crafted JPEG image.

Find out more about CVE-2013-6630 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 4.3
Base Metrics AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux version 6 (libjpeg-turbo) RHSA-2013:1803 2013-12-09

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 libjpeg-turbo Not affected
Red Hat Enterprise Linux 5 libjpeg Not affected