Ubuntu 14.04 LTS : linux-lts-utopic vulnerabilities (USN-2797-1)

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


Synopsis :

The remote Ubuntu host is missing one or more security-related
patches.

Description :

It was discovered that the Linux kernel did not check if a new IPv6
MTU set by a user space application was valid. A remote attacker could
forge a route advertisement with an invalid MTU that a user space
daemon like NetworkManager would honor and apply to the kernel,
causing a denial of service. (CVE-2015-0272)

It was discovered that in certain situations, a directory could be
renamed outside of a bind mounted location. An attacker could use this
to escape bind mount containment and gain access to sensitive
information. (CVE-2015-2925)

Moein Ghasemzadeh discovered that the USB WhiteHEAT serial driver
contained hardcoded attributes about the USB devices. An attacker
could construct a fake WhiteHEAT USB device that, when inserted,
causes a denial of service (system crash). (CVE-2015-5257)

It was discovered that the SCTP protocol implementation in the Linux
kernel performed an incorrect sequence of protocol-initialization
steps. A local attacker could use this to cause a denial of service
(system crash). (CVE-2015-5283).

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 linux-image-3.16-generic,
linux-image-3.16-generic-lpae and / or linux-image-3.16-lowlatency
packages.

Risk factor :

Medium / CVSS Base Score : 6.9
(CVSS2#AV:L/AC:M/Au:N/C:C/I:C/A:C)
CVSS Temporal Score : 5.1
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 86787 ()

Bugtraq ID:

CVE ID: CVE-2015-0272
CVE-2015-2925
CVE-2015-5257
CVE-2015-5283

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