Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other unspecified impact via “insanely large inputs” to the (1) evbuffer_add, (2) evbuffer_expand, or (3) bufferevent_write function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier has been SPLIT per ADT3 due to different affected versions. See CVE-2015-6525 for the functions that are only affected in 2.0 and later.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-6272
Reference (s):
- https://puppet.com/security/cve/CVE-2014-6272
- DEBIAN:DSA-3119
- URL: http://www.debian.org/security/2015/dsa-3119
- MLIST:[Libevent-users] 20150105 Advisory: integer overflow in evbuffers for Libevent <= 1.4.14b,2.0.21,2.1.4-alpha [CVE-2014-6272]
- URL: http://archives.seul.org/libevent/users/Jan-2015/msg00010.html