Quantum Secular Labs / Blog / Advisories

CVE-2003-0694: Sendmail: Buffer overflow

CVE-2003-0694 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Sendmail, along with 17 other products in NVD’s configuration data. 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

The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code via buffer overflow attacks, as demonstrated using the parseaddr function in parseaddr.c.

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

  • Sendmail: 2.6; 2.6.1; 2.6.2; 3.0; 3.0.1; 3.0.2; 3.0.3; 8.8.8; 8.9.0; 8.9.1; 8.9.2; 8.9.3
  • Sendmail Advanced Message Server: 1.2; 1.3
  • Sendmail Pro: 8.9.2; 8.9.3
  • Sendmail Switch: 2.1; 2.1.1; 2.1.2; 2.1.3; 2.1.4; 2.1.5; 2.2; 2.2.1; 2.2.2; 2.2.3; 2.2.4; 2.2.5
  • Sgi Irix: 6.5.15; 6.5.16; 6.5.17f; 6.5.17m; 6.5.18f; 6.5.18m; 6.5.19f; 6.5.19m; 6.5.20f; 6.5.20m; 6.5.21f; 6.5.21m
  • Apple Mac OS X: 10.2; 10.2.1; 10.2.2; 10.2.3; 10.2.4; 10.2.5; 10.2.6
  • Apple Mac OS X Server: 10.2; 10.2.1; 10.2.2; 10.2.3; 10.2.4; 10.2.5; 10.2.6
  • Compaq Tru64: 4.0f; 4.0f_pk6_bl17; 4.0f_pk7_bl18; 4.0f_pk8_bl22; 4.0g; 4.0g_pk3_bl17; 4.0g_pk4_bl22; 5.1; 5.1_pk3_bl17; 5.1_pk4_bl18; 5.1_pk5_bl19; 5.1_pk6_bl20
  • Freebsd: 3.0 releng; 4.0 releng; 4.3 release_p38; 4.3 releng; 4.4 release_p42; 4.4 releng; 4.5 release_p32; 4.5 releng; 4.6 release_p20; 4.6 releng; 4.7 release_p17; 4.7 releng
  • Gentoo Linux: 0.5; 0.7; 1.1a; 1.2; 1.4 rc1; 1.4 rc2; 1.4 rc3
  • HP Ux: 11.00; 11.0.4; 11.11; 11.22
  • IBM AIX: 4.3.3; 5.1; 5.2
  • Netbsd: 1.4.3; 1.5; 1.5.1; 1.5.2; 1.5.3; 1.6; 1.6 beta; 1.6.1
  • Sun Solaris: 2.6; 7.0; 8.0; 9.0
  • Sunos: all versions listed by NVD; 5.7; 5.8

References