SB2016061605 - Cryptographic issues in libexpat expat
Published: June 16, 2016 Updated: August 3, 2020
Security Bulletin ID
SB2016061605
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Cryptographic issues (CVE-ID: CVE-2012-6702)
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.
Remediation
Install update from vendor's website.
References
- 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