CVEvulnerability

CVE-2009-2408

5.9 MEDIUM Published 2009-07-30 Modified 2026-06-16 Official page ↗
Status
Modified
Published
2009-07-30
Last modified
2026-06-16
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
CVSS 2.0 ([email protected])
6.8 MEDIUM — AV:N/AC:M/Au:N/C:P/I:P/A:P
Weaknesses
CWE-295

Description

Mozilla Network Security Services (NSS) before 3.12.3, Firefox before 3.0.13, Thunderbird before 2.0.0.23, and SeaMonkey before 1.1.18 do not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority. NOTE: this was originally reported for Firefox before 3.5.

Affected configurations

• mozilla firefox (< 3.0.13) • mozilla network security services (< 3.12.3) • mozilla seamonkey (< 1.1.18) • mozilla thunderbird (< 2.0.0.23) • opensuse opensuse (>= 10.3 <= 11.1) • suse linux enterprise 10.0 • suse linux enterprise 11.0 • suse linux enterprise server 9 • debian debian linux 5.0 • canonical ubuntu linux 8.04 • canonical ubuntu linux 8.10 • canonical ubuntu linux 9.04

Related

Weakness · CWE (1)

  • CWE-295 Improper Certificate Validation weakness

Referenced by CWE · observed example (2)

  • CWE-295 Improper Certificate Validation weakness
  • CWE-297 Improper Validation of Certificate with Host Mismatch weakness

References