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Sid 1-2260

Message

SERVER-MAIL VRFY overflow attempt

Summary

Buffer overflow in Sendmail 5.79 to 8.12.7 allows remote attackers to execute arbitrary code via certain formatted address fields, related to sender and recipient header comments as processed by the crackaddr function of headers.c.

Impact

CVSS base score 10.0 CVSS impact score 10.0 CVSS exploitability score 10.0 confidentialityImpact COMPLETE integrityImpact COMPLETE availabilityImpact COMPLETE

CVE-2003-0161:

CVSS base score 10.0

CVSS impact score 10.0

CVSS exploitability score 10.0

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

Detailed information

CVE-2003-0161: The prescan() function in the address parser (parseaddr.c) in Sendmail before 8.12.9 does not properly handle certain conversions from char and int types, which can cause a length check to be disabled when Sendmail misinterprets an input value as a special "NOCHAR" control value, allowing attackers to cause a denial of service and possibly execute arbitrary code via a buffer overflow attack using messages, a different vulnerability than CVE-2002-1337.

Affected systems

  • sendmail sendmail 2.6
  • sendmail sendmail 2.6.1
  • sendmail sendmail 2.6.2
  • sendmail sendmail 3.0
  • sendmail sendmail 3.0.1
  • sendmail sendmail 3.0.2
  • sendmail sendmail 3.0.3
  • sendmail sendmail 8.9.0
  • sendmail sendmail 8.9.1
  • sendmail sendmail 8.9.2
  • sendmail sendmail 8.9.3
  • sendmail sendmail 8.10
  • sendmail sendmail 8.10.1
  • sendmail sendmail 8.10.2
  • sendmail sendmail 8.11.0
  • sendmail sendmail 8.11.1
  • sendmail sendmail 8.11.2
  • sendmail sendmail 8.11.3
  • sendmail sendmail 8.11.4
  • sendmail sendmail 8.11.5
  • sendmail sendmail 8.11.6
  • sendmail sendmail 8.12
  • sendmail sendmail 8.12.0
  • sendmail sendmail 8.12.1
  • sendmail sendmail 8.12.2
  • sendmail sendmail 8.12.3
  • sendmail sendmail 8.12.4
  • sendmail sendmail 8.12.5
  • sendmail sendmail 8.12.6
  • sendmail sendmail 8.12.7
  • sendmail sendmail 8.12.8
  • sendmail sendmail_switch 2.1
  • sendmail sendmail_switch 2.1.1
  • sendmail sendmail_switch 2.1.2
  • sendmail sendmail_switch 2.1.3
  • sendmail sendmail_switch 2.1.4
  • sendmail sendmail_switch 2.1.5
  • sendmail sendmail_switch 2.2
  • sendmail sendmail_switch 2.2.1
  • sendmail sendmail_switch 2.2.2
  • sendmail sendmail_switch 2.2.3
  • sendmail sendmail_switch 2.2.4
  • sendmail sendmail_switch 2.2.5
  • sendmail sendmail_switch 3.0
  • sendmail sendmail_switch 3.0.1
  • sendmail sendmail_switch 3.0.2
  • sendmail sendmail_switch 3.0.3
  • compaq tru64 4.0b
  • compaq tru64 4.0d
  • compaq tru64 4.0dpk9bl17
  • compaq tru64 4.0f
  • compaq tru64 4.0fpk6bl17
  • compaq tru64 4.0fpk7bl18
  • compaq tru64 4.0g
  • compaq tru64 4.0gpk3bl17
  • compaq tru64 5.0
  • compaq tru64 5.0pk4bl17
  • compaq tru64 5.0pk4bl18
  • compaq tru64 5.0a
  • compaq tru64 5.0apk3bl17
  • compaq tru64 5.0f
  • compaq tru64 5.1
  • compaq tru64 5.1pk3bl17
  • compaq tru64 5.1pk4bl18
  • compaq tru64 5.1pk5bl19
  • compaq tru64 5.1pk6bl20
  • compaq tru64 5.1a
  • compaq tru64 5.1apk1bl1
  • compaq tru64 5.1apk2bl2
  • compaq tru64 5.1apk3bl3
  • compaq tru64 5.1b
  • compaq tru64 5.1bpk1bl1
  • hp hp-ux 10.00
  • hp hp-ux 10.01
  • hp hp-ux 10.08
  • hp hp-ux 10.09
  • hp hp-ux 10.10
  • hp hp-ux 10.16
  • hp hp-ux 10.20
  • hp hp-ux 10.24
  • hp hp-ux 10.26
  • hp hp-ux 10.30
  • hp hp-ux 10.34
  • hp hp-ux 11.00
  • hp hp-ux 11.0.4
  • hp hp-ux 11.11
  • hp hp-ux 11.20
  • hp hp-ux 11.22
  • hp hp-uxseries700 10.20
  • hp hp-uxseries800 10.20
  • hp sis *
  • sun solaris 2.4
  • sun solaris 2.5
  • sun solaris 2.5.1
  • sun solaris 2.6
  • sun solaris 7.0
  • sun solaris 8.0
  • sun solaris 9.0

Ease of attack

CVE-2003-0161:

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

False positives

None known

False negatives

None known

Corrective action

Upgrade to the latest non-affected version of the software.

Apply the appropriate vendor supplied patches.

Contributors

  • Talos research team.
  • This document was generated from data supplied by the national vulnerability database, a product of the national institute of standards and technology.
  • For more information see nvd.

Additional References