Ubuntu 14.04 LTS : linux-lts-utopic vulnerabilities (USN-2545-1)

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 :

A flaw was discovered in the automatic loading of modules in the
crypto subsystem of the Linux kernel. A local user could exploit this
flaw to load installed kernel modules, increasing the attack surface
and potentially using this to gain administrative privileges.
(CVE-2013-7421)

A flaw was discovered in the crypto subsystem when screening module
names for automatic module loading if the name contained a valid
crypto module name, eg. vfat(aes). A local user could exploit this
flaw to load installed kernel modules, increasing the attack surface
and potentially using this to gain administrative privileges.
(CVE-2014-9644)

Sun Baoliang discovered a use after free flaw in the Linux kernel's
SCTP (Stream Control Transmission Protocol) subsystem during INIT
collisions. A remote attacker could exploit this flaw to cause a
denial of service (system crash) or potentially escalate their
privileges on the system. (CVE-2015-1421)

Marcelo Leitner discovered a flaw in the Linux kernel's routing of
packets to too many different dsts/too fast. A remote attacker can
exploit this flaw to cause a denial of service (system crash).
(CVE-2015-1465).

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 :

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

Family: Ubuntu Local Security Checks

Nessus Plugin ID: 82072 ()

Bugtraq ID: 72320
72322
72356
72435

CVE ID: CVE-2013-7421
CVE-2014-9644
CVE-2015-1421
CVE-2015-1465

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