PT-2009-4834 · Mozilla+1 · Firefox+4

Dan Kaminsky + 1 · Published 2009-07-30 · Updated 2024-02-14 · CVE-2009-2408

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Mozilla Network Security Services (NSS) versions prior to 3.12.3 Firefox versions prior to 3.0.13 Thunderbird versions prior to 2.0.0.23 SeaMonkey versions prior to 1.1.18

Description The issue arises from improper handling of a '0' character in a domain name within the subject's Common Name (CN) field of an X.509 certificate. This allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority.

Recommendations For Mozilla Network Security Services (NSS) versions prior to 3.12.3, update to version 3.12.3 or later. For Firefox versions prior to 3.0.13, update to version 3.0.13 or later. For Thunderbird versions prior to 2.0.0.23, update to version 2.0.0.23 or later. For SeaMonkey versions prior to 1.1.18, update to version 1.1.18 or later.

Fix

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2009-2408

DSA-1874-1

DSA-2025-1

RHSA-2009:1184

RHSA-2009:1186

RHSA-2009:1190

RHSA-2009:1207

RHSA-2009:1432

RHSA-2009_1184

RHSA-2009_1186

Affected Products

Firefox

Network Security Services

Red Hat

Seamonkey

Thunderbird

References · 42

• http://secunia.com/advisories/36125 · Vendor Advisory
• http://novell.com/linux/security/advisories/2009_48_firefox.html · Vendor Advisory
• http://mozilla.org/security/announce/2009/mfsa2009-42.html · Vendor Advisory
• http://secunia.com/advisories/36088 · Vendor Advisory
• http://mandriva.com/security/advisories?name=MDVSA-2009:197 · Vendor Advisory
• http://debian.org/security/2009/dsa-1874 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2009-2408 · Security Note
• http://secunia.com/advisories/36157 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-03444 · Security Note
• http://mandriva.com/security/advisories?name=MDVSA-2009:217 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2009-2408 · Vendor Advisory
• https://bdu.fstec.ru/vul/2015-03443 · Security Note
• http://secunia.com/advisories/36139 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00004.html · Vendor Advisory
• https://usn.ubuntu.com/810-2 · Vendor Advisory