Ubuntu 12.04 LTS / 14.04 LTS / 14.10 / 15.04 : nbd vulnerabilities (USN-2676-1)

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 :

It was discovered that NBD incorrectly handled IP address matching. A
remote attacker could use this issue with an IP address that has a
partial match and bypass access restrictions. This issue only affected
Ubuntu 12.04 LTS. (CVE-2013-6410)

Tuomas Rasanen discovered that NBD incorrectly handled wrong export
names and closed connections during negotiation. A remote attacker
could use this issue to cause NBD to crash, resulting in a denial of
service. This issue only affected Ubuntu 12.04 LTS. (CVE-2013-7441)

Tuomas Rasanen discovered that NBD incorrectly handled signals. A
remote attacker could use this issue to cause NBD to crash, resulting
in a denial of service. (CVE-2015-0847).

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 nbd-server package.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 6.4
(CVSS2#E:F/RL:OF/RC:ND)
Public Exploit Available : true

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 84958 ()

Bugtraq ID: 64002
74557
74808

CVE ID: CVE-2013-6410
CVE-2013-7441
CVE-2015-0847

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