Mandriva Linux Security Advisory 2009-157 – Off-by-one error in the inflate function in Zlib.xs in Compress::Raw::Zlib Perl module before 2.017, as used in AMaViS, SpamAssassin, and possibly other products, allows context-dependent attackers to cause a denial of service (hang or crash) via a crafted zlib compressed stream that triggers a heap-based buffer overflow, as exploited in the wild by Trojan.Downloader-71014 in June 2009. This update provides fixes for this vulnerability.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/79452/MDVSA-2009-157.txt
Source: https://packetstormsecurity.com/files/79452/Mandriva-Linux-Security-Advisory-2009-157.html