CVE Vulnerabilities

CVE-2015-2721

Published: Jul 06, 2015 | Modified: Sep 12, 2023
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N
RedHat/V2
RedHat/V3
Ubuntu

Mozilla Network Security Services (NSS) before 3.19, as used in Mozilla Firefox before 39.0, Firefox ESR 31.x before 31.8 and 38.x before 38.1, Thunderbird before 38.1, and other products, does not properly determine state transitions for the TLS state machine, which allows man-in-the-middle attackers to defeat cryptographic protection mechanisms by blocking messages, as demonstrated by removing a forward-secrecy property by blocking a ServerKeyExchange message, aka a SMACK SKIP-TLS issue.

Affected Software

Name Vendor Start Version End Version
Ubuntu_linux Canonical 12.04 12.04
Suse_linux_enterprise_server Novell 12.0 12.0
Suse_linux_enterprise_server Novell 11 11
Debian_linux Debian 8.0 8.0
Debian_linux Debian 7.0 7.0
Ubuntu_linux Canonical 14.10 14.10
Ubuntu_linux Canonical 14.04 14.04
Suse_linux_enterprise_desktop Novell 12.0 12.0
Ubuntu_linux Canonical 15.04 15.04
Suse_linux_enterprise_software_development_kit Novell 12.0 12.0

References