Gpg4win gpg2.exe certificate denial of service

gpg4win-gpg2-dos (53908) The risk level is classified as MediumMedium Risk

Description:

Gpg4win is vulnerable to a denial of service, caused by an error in gpg2.exe. By persuading a victim to import a specially-crafted certificate containing an overly long signature, a remote attacker could exploit this vulnerability to cause the application to crash.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.9
  Exploitability: Functional
  Remediation Level: Unavailable
  Report Confidence: Uncorroborated

Consequences:

Denial of Service

Remedy:

No remedy available as of May 1, 2013.

References:

  • Gpg4win Web site: Gpg4win.
  • Packet Storm Web Site: GPG2/Kleopatra version 2.0.11 malformed certificate proof of concept crash exploit.
  • BID-36781: Kleopatra Malformed Certificate Remote Denial of Service Vulnerability
  • CVE-2009-3805: gpg2.exe in Gpg4win 2.0.1, as used in KDE Kleopatra 2.0.11, allows remote attackers to cause a denial of service (application crash) via a long certificate signature.
  • OSVDB ID: 59410: Gpg4win in KDE Kleopatra gpg2.exe Certificate Signature Remote DoS

Platforms Affected:

  • Gpg4win Gpg4win 2.0.1

Reported:

Oct 22, 2009

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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