DEBIAN-CVE-2009-2408

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2009-2408
Published: 30 Jul 2009, 19:30
Last modified:28 Apr 2026, 20:04

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
5.9 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

30 Jul 2009, 19:30
Published
Vulnerability first disclosed
28 Apr 2026, 20:04
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Systems

  • debian•nss

    < 3.12.3-1 | < 3.12.3-1 | < 3.12.3-1 | < 3.12.3-1

References (1)