libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in...

Vulnerability Description

libxml2 20904-GITv2.9.4-16-g0741801 is vulnerable to a heap-based buffer over-read in the xmlDictAddString function in dict.c. This vulnerability causes programs that use libxml2, such as PHP, to crash. This vulnerability exists because of an incomplete fix for CVE-2016-1839.

References

• http://www.securityfocus.com/bid/98568
• http://www.debian.org/security/2017/dsa-3952
• https://security.gentoo.org/glsa/201711-01
• http://www.openwall.com/lists/oss-security/2017/05/15/1
• https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
• https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E