HTTP: M3U Malformed File Format
This signature detects attempts to exploit flaws in M3U files. M3U file type is primarily associated with 'MP3 Playlist File'. Standards are defined for representing a m3u file. Any deviation from it can be an indication of malicious activity. This kind of behavior is mostly noticeable from exploits created using Metasploit Framework.
Extended Description
Stack-based buffer overflow in Nullsoft Winamp 5.12 and 5.13 allows user-assisted attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted .m3u file that causes an incorrect strncpy function call when the player pauses or stops the file.
Affected Products
Nullsoft winamp
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Nullsoft
7.5
7.6