UBUNTU-CVE-2014-6272

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UBUNTU-CVE-2014-6272

Summary:

Details: 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.

References: https://ubuntu.com/security/CVE-2014-6272, http://archives.seul.org/libevent/users/Jan-2015/msg00011.html, http://archives.seul.org/libevent/users/Jan-2015/msg00012.html, http://archives.seul.org/libevent/users/Jan-2015/msg00013.html, https://ubuntu.com/security/notices/USN-2477-1, https://www.cve.org/CVERecord?id=CVE-2014-6272