Cryptographic issues in libexpat expat



Published: 2016-06-16 | Updated: 2020-08-03
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2012-6702
CWE-ID CWE-310
Exploitation vector Network
Public exploit N/A
Vulnerable software
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expat
Universal components / Libraries / Libraries used by multiple products

Vendor libexpat.org

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Cryptographic issues

EUVDB-ID: #VU33052

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2012-6702

CWE-ID: CWE-310 - Cryptographic Issues

Exploit availability: No

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

expat: 2.0.0 - 2.1.1


CPE2.3 External links

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
http://security.gentoo.org/glsa/201701-21
http://source.android.com/security/bulletin/2016-11-01.html
http://www.tenable.com/security/tns-2016-20

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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