Quantum Secular Labs / Blog / Advisories

CVE-2006-5276: Snort: Buffer overflow

CVE-2006-5276 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Snort. 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

Stack-based buffer overflow in the DCE/RPC preprocessor in Snort before 2.6.1.3, and 2.7 before beta 2; and Sourcefire Intrusion Sensor; allows remote attackers to execute arbitrary code via crafted SMB traffic.

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

  • Snort: up to and including 2.6.1.2; 2.6.1; 2.6.1.1; 2.7_beta1
  • Sourcefire Intrusion Sensor: 4.1; 4.5; 4.6

References