Gentoo Linux Security Advisory GLSA 200603-07 – Chris Moore discovered a buffer overflow in a special class of lexicographical scanners generated by flex. Only scanners generated by grammars which use either REJECT, or rules with a variable trailing context might be at risk. Versions less than 2.5.33-r1 are affected.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/44567/glsa-200603-07.txt
Source: https://packetstormsecurity.com/files/44567/Gentoo-Linux-Security-Advisory-200603-7.html