XXE attack in expat - CVE-2016-4472

 

XXE attack in expat - CVE-2016-4472

Published: May 7, 2018


Vulnerability identifier: #VU12378
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2016-4472
CWE-ID: CWE-611
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: libexpat.org
Affected software:
expat

Detailed vulnerability description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to the overflow protection in Expat is removed by compilers with certain optimization settings. A remote attacker can supply specially crafted XML data and cause the service to crash.

The vulnerability exists due to incomplete fix for CVE-2015-1283 and CVE-2015-2716.

How to mitigate CVE-2016-4472

Install update from vendor's website.

Sources