Stack-based buffer overflow in the flattenIncrementally function in flatten.c in xcftools 1.0.4, as reachable from the (1) xcf2pnm and (2) xcf2png utilities, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a crafted image that causes a conversion to a location "above or to the left of the canvas." NOTE: some of these details are obtained from third party information.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=533361 | patch |
| http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050542.html | vendor advisory |
| http://www.securityfocus.com/bid/43883 | vdb entry |
| http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050562.html | vendor advisory |
| http://osvdb.org/55187 | vdb entry |
| http://www.vupen.com/english/advisories/2009/1638 | vdb entry vendor advisory |
| http://secunia.com/advisories/35397 | third party advisory vendor advisory |
| http://lists.fedoraproject.org/pipermail/package-announce/2010-November/050526.html | vendor advisory |