Cryptographic issues in expat - CVE-2012-6702
Published: June 16, 2016 / Updated: August 3, 2020
Vulnerability identifier: #VU33052
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2012-6702
CWE-ID: CWE-310
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: libexpat.org
Affected software:
expat
expat
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to manipulate data.
Expat, when used in a parser that has not called XML_SetHashSalt or passed it a seed of 0, makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms via vectors involving use of the srand function.
How to mitigate CVE-2012-6702
Install update from vendor's website.
Sources
- http://www.debian.org/security/2016/dsa-3597
- http://www.openwall.com/lists/oss-security/2016/06/03/8
- http://www.openwall.com/lists/oss-security/2016/06/04/1
- http://www.securityfocus.com/bid/91483
- http://www.ubuntu.com/usn/USN-3010-1
- https://security.gentoo.org/glsa/201701-21
- https://source.android.com/security/bulletin/2016-11-01.html
- https://www.tenable.com/security/tns-2016-20