Mandriva Linux Security Advisory 2011-009 - Stack-based buffer overflow in gif2png.c in gif2png 2.5.3 and earlier might allow context-dependent attackers to execute arbitrary code via a long command-line argument, as demonstrated by a CGI program that launches gif2png. Buffer overflow in gif2png.c in gif2png 2.5.3 and earlier might allow context-dependent attackers to cause a denial of service (application crash) or have unspecified other impact via a GIF file that contains many images, leading to long extensions such as.p100 for PNG output files, as demonstrated by a CGI program that launches gif2png, a different vulnerability than CVE-2009-5018.
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