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CVE-2006-6235: A "stack overwrite" vulnerability in GnuPG (gpg) 1.x before 1.4.6, 2.x before 2.0.2, and 1.9.0 through…

CVE-2006-6235 has a CVSS v2 base score of 10.0 (the maximum on that scale) and NVD lists 9 affected products, including GNU Privacy Guard. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

A "stack overwrite" vulnerability in GnuPG (gpg) 1.x before 1.4.6, 2.x before 2.0.2, and 1.9.0 through 1.9.95 allows attackers to execute arbitrary code via crafted OpenPGP packets that cause GnuPG to dereference a function pointer from deallocated stack memory.

Severity breakdown

CVSS v2.0 10.0: AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access vector: Network. Exploitable remotely over the network.
  • Access complexity: Low. No special conditions are required.
  • Authentication: None. No authentication is needed.
  • Confidentiality impact: Complete. Total information disclosure.
  • Integrity impact: Complete. Total loss of integrity.
  • Availability impact: Complete. Total shutdown of the component.

Affected products

  • GNU Privacy Guard: 1.2.4; 1.2.5; 1.2.6; 1.2.7; 1.3.3; 1.3.4; 1.4; 1.4.1; 1.4.2; 1.4.2.1; 1.4.2.2; 1.4.3
  • Gpg4win: 1.0.7
  • Red Hat Enterprise Linux: 4.0
  • Red Hat Enterprise Linux Desktop: 3.0; 4.0
  • Red Hat Fedora Core: core_5.0; core6
  • Red Hat Linux Advanced Workstation: 2.1
  • Rpath Linux: 1
  • Slackware Linux: 11.0
  • Ubuntu Linux: 5.10; 6.06

References