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.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://www.tenable.com/security/tns-2016-20 | third party advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1344251 | patch third party advisory issue tracking |
| http://www.ubuntu.com/usn/USN-3013-1 | third party advisory vendor advisory |
| http://www.securityfocus.com/bid/91528 | third party advisory vdb entry |
| https://sourceforge.net/p/expat/code_git/ci/f0bec73b018caa07d3e75ec8dd967f3785d71bde | third party advisory patch |
| https://security.gentoo.org/glsa/201701-21 | third party advisory vendor advisory |
| https://kc.mcafee.com/corporate/index?page=content&id=SB10365 | third party advisory |