GNU Gnash (GNU Flash player) sprite_definition::read() function code execution

gnuflash-sprite-code-execution (34148) The risk level is classified as HighHigh Risk

Description:

GNU Gnash could allow a remote attacker to execute arbitrary code on the system, caused by a memory corruption vulnerability in the sprite_definition::read() function. By persuading a victim to open a specially-crafted Flash (SWF) file, a remote attacker could exploit this vulnerability to execute arbitrary code on the system or cause the application to crash.

Platforms Affected:

  • GNU, Flash Player 0.7.2

Remedy:

No remedy available as of December 2007.

Consequences:

Gain Access

References:

  • GNU Gnash Bug #19774, URGENT: Out of bounds memory access (leading to arbitrary code execution) at http://savannah.gnu.org/bugs/?19774.
  • BID-23765: Gnash DefineSprite Tag Remote Code Execution Vulnerability
  • CVE-2007-2500: server/parser/sprite_definition.cpp in GNU Gnash (aka GNU Flash Player) 0.7.2 allows remote attackers to execute arbitrary code via a large number of SHOWFRAME elements within a DEFINESPRITE element, which triggers memory corruption and enables the attacker to call free with an arbitrary address, probably resultant from a buffer overflow.
  • FrSIRT/ADV-2007-1688: GNU Gnash sprite_definition::read() Function Remote Code Execution Vulnerability
  • FrSIRT/ADV-2008-0084: IBM HTTP Server for WebSphere z/OS Security Bypass Vulnerabilities
  • SECTRACK ID: 1018041: Gnash DEFINESPRITE Tag Lets Remote Users Execute Arbitrary Code
  • SUSE-SR:2007:013: SUSE Security Summary Report

Reported:

May 02, 2007

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