CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
EPSS
Percentile
78.3%
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.
Author | Note |
---|---|
seth-arnold | The fix is to initialize huffval[]. |
mdeslaur | Although original report seems to indicate libjpeg6b isn’t affected, that particular code is identical. |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 12.04 | noarch | firefox | < 26.0+build2-0ubuntu0.12.04.2 | UNKNOWN |
ubuntu | 12.10 | noarch | firefox | < 26.0+build2-0ubuntu0.12.10.2 | UNKNOWN |
ubuntu | 13.04 | noarch | firefox | < 26.0+build2-0ubuntu0.13.04.2 | UNKNOWN |
ubuntu | 13.10 | noarch | firefox | < 26.0+build2-0ubuntu0.13.10.2 | UNKNOWN |
ubuntu | 12.04 | noarch | libjpeg-turbo | < 1.1.90+svn733-0ubuntu4.3 | UNKNOWN |
ubuntu | 12.10 | noarch | libjpeg-turbo | < 1.2.1-0ubuntu2.12.10.1 | UNKNOWN |
ubuntu | 13.04 | noarch | libjpeg-turbo | < 1.2.1-0ubuntu2.13.04.1 | UNKNOWN |
ubuntu | 13.10 | noarch | libjpeg-turbo | < 1.3.0-0ubuntu1.1 | UNKNOWN |
ubuntu | 10.04 | noarch | libjpeg6b | < 6b-15ubuntu1.1 | UNKNOWN |
ubuntu | 12.04 | noarch | libjpeg6b | < 6b1-2ubuntu1.1 | UNKNOWN |
lists.grok.org.uk/pipermail/full-disclosure/2013-November/092015.html
launchpad.net/bugs/cve/CVE-2013-6630
nvd.nist.gov/vuln/detail/CVE-2013-6630
security-tracker.debian.org/tracker/CVE-2013-6630
ubuntu.com/security/notices/USN-2052-1
ubuntu.com/security/notices/USN-2053-1
ubuntu.com/security/notices/USN-2060-1
www.cve.org/CVERecord?id=CVE-2013-6630