National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-2721 Detail

Description

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.

Source:  MITRE
Description Last Modified:  07/05/2015

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 4.3 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00033.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00034.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html
http://rhn.redhat.com/errata/RHSA-2015-1185.html
http://rhn.redhat.com/errata/RHSA-2015-1664.html
http://www.debian.org/security/2015/dsa-3324 Third Party Advisory
http://www.debian.org/security/2015/dsa-3336 Third Party Advisory
http://www.mozilla.org/security/announce/2015/mfsa2015-71.html Vendor Advisory
http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html Third Party Advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html Third Party Advisory
http://www.securityfocus.com/bid/75541
http://www.securityfocus.com/bid/83398
http://www.securityfocus.com/bid/91787 Third Party Advisory
http://www.securitytracker.com/id/1032783
http://www.securitytracker.com/id/1032784
http://www.ubuntu.com/usn/USN-2656-1
http://www.ubuntu.com/usn/USN-2656-2
http://www.ubuntu.com/usn/USN-2672-1
http://www.ubuntu.com/usn/USN-2673-1 Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1086145 Exploit Issue Tracking VDB Entry Vendor Advisory
https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/NSS_3.19_release_notes Release Notes
https://security.gentoo.org/glsa/201512-10
https://security.gentoo.org/glsa/201701-46
https://smacktls.com Technical Description

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:11:sp4:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*
Configuration 2
AND
OR
cpe:2.3:a:mozilla:network_security_services:3.19:*:*:*:*:*:*:*
OR
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*    versions up to (including) 38.1.0
cpe:2.3:a:mozilla:firefox_esr:31.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.1.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.1.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.3.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.4:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.5:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.5.1:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.5.2:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.5.3:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.6.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:31.7.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:38.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*    versions up to (including) 38.0.1
Configuration 3
OR
cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*
cpe:2.3:o:oracle:vm_server:3.2:*:*:*:*:*:*:*

Denotes Vulnerable Software
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Change History

19 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-2721
NVD Published Date:
07/05/2015
NVD Last Modified:
01/04/2018