What’s Vulnerable › Vulnerabilities

CVE-2012-6702

• Severity: medium (CVSS 5.9 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2016-06-16 · updated 2026-06-16
• Weakness: CWE-310

Description

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.

Affected products

• Canonical Ubuntu Linux: 12.04, 14.04, 15.10, 16.04
• Debian Linux: 8.0
• Android: 4.4.4, 5.0.2, 5.1.1, 6.0, 6.0.1
• libexpat project libexpat: before 2.2.0 — fixed in 2.2.0

How to fix

Upgrade to a fixed version: libexpat project libexpat 2.2.0. Check the vendor advisory for mitigations.

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
• 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

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