Secunia Security Advisory – Slackware has issued an update for libpng. This fixes a vulnerability, which can be exploited by malicious people to cause a DoS (Denial of Service), disclose potentially sensitive information, or potentially compromise an application using the library.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/65916/sa30009.txt
Source: https://packetstormsecurity.com/files/65916/Secunia-Security-Advisory-30009.html