Ubuntu 12.04 LTS / 14.04 LTS / 14.10 / 15.04 : thunderbird vulnerabilities (USN-2673-1) (Logjam)

Ubuntu Security Notice (C) 2015-2016 Canonical, Inc. / NASL script (C) 2015-2016 Tenable Network Security, Inc.


Synopsis :

The remote Ubuntu host is missing a security-related patch.

Description :

Karthikeyan Bhargavan discovered that NSS incorrectly handled state
transitions for the TLS state machine. If a remote attacker were able
to perform a man-in-the-middle attack, this flaw could be exploited to
skip the ServerKeyExchange message and remove the forward-secrecy
property. (CVE-2015-2721)

Bob Clary, Christian Holler, Bobby Holley, and Andrew McCreight
discovered multiple memory safety issues in Thunderbird. If a user
were tricked in to opening a specially crafted website in a browsing
context, an attacker could potentially exploit these to cause a denial
of service via application crash, or execute arbitrary code with the
privileges of the user invoking Thunderbird. (CVE-2015-2724)

Ronald Crane discovered multiple security vulnerabilities. If a user
were tricked in to opening a specially crafted website in a browsing
context, an attacker could potentially exploit these to cause a denial
of service via application crash, or execute arbitrary code with the
privileges of the user invoking Thunderbird. (CVE-2015-2734,
CVE-2015-2735, CVE-2015-2736, CVE-2015-2737, CVE-2015-2738,
CVE-2015-2739, CVE-2015-2740)

Matthew Green discovered a DHE key processing issue in NSS where a
MITM could force a server to downgrade TLS connections to 512-bit
export-grade cryptography. An attacker could potentially exploit this
to impersonate the server. (CVE-2015-4000).

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.

Solution :

Update the affected thunderbird package.

Risk factor :

Critical / CVSS Base Score : 10.0
(CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 7.4
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Ready to Amp Up Your Nessus Experience?

Get Nessus Professional to scan unlimited IPs, run compliance checks & more

Buy Nessus Professional Now