Vulnerability CVE-2016-4472
Published: 2016-06-30

Description:
The overflow protection in Expat is removed by compilers with certain optimization settings, which allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via crafted XML data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1283 and CVE-2015-2716.

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Libexpat -> Expat 
Canonical -> Ubuntu linux 

 References:
http://www.securityfocus.com/bid/91528
http://www.ubuntu.com/usn/USN-3013-1
https://bugzilla.redhat.com/show_bug.cgi?id=1344251
https://security.gentoo.org/glsa/201701-21
https://sourceforge.net/p/expat/code_git/ci/f0bec73b018caa07d3e75ec8dd967f3785d71bde
https://www.tenable.com/security/tns-2016-20
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