A denial of service flaw exists in the parsing of DNS responses in libevent, specifically in the handling of label pointers. Versions 1.2 and 1.2a are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/54518/libevent-dos.txt
Source: https://packetstormsecurity.com/files/54518/libevent-dos.txt.html