Ubuntu Security Notice (C) 2011-2014 Canonical, Inc. / NASL script (C) 2011-2014 Tenable Network Security, Inc.
The remote Ubuntu host is missing one or more security-related patches.
Ryan Sweat discovered that the kernel incorrectly handled certain VLAN
packets. On some systems, a remote attacker could send specially
crafted traffic to crash the system, leading to a denial of service.
Timo Warns discovered that the EFI GUID partition table was not
correctly parsed. A physically local attacker that could insert
mountable devices could exploit this to crash the system or possibly
gain root privileges. (CVE-2011-1776)
Vasiliy Kulikov and Dan Rosenberg discovered that ecryptfs did not
correctly check the origin of mount points. A local attacker could
exploit this to trick the system into unmounting arbitrary mount
points, leading to a denial of service. (CVE-2011-1833)
Dan Rosenberg discovered that the IPv4 diagnostic routines did not
correctly validate certain requests. A local attacker could exploit
this to consume CPU resources, leading to a denial of service.
Dan Rosenberg discovered that the Bluetooth stack incorrectly handled
certain L2CAP requests. If a system was using Bluetooth, a remote
attacker could send specially crafted traffic to crash the system or
gain root privileges. (CVE-2011-2497)
Fernando Gont discovered that the IPv6 stack used predictable fragment
identification numbers. A remote attacker could exploit this to
exhaust network resources, leading to a denial of service.
Mauro Carvalho Chehab discovered that the si4713 radio driver did not
correctly check the length of memory copies. If this hardware was
available, a local attacker could exploit this to crash the system or
gain root privileges. (CVE-2011-2700)
Herbert Xu discovered that certain fields were incorrectly handled
when Generic Receive Offload (CVE-2011-2723)
The performance counter subsystem did not correctly handle certain
counters. A local attacker could exploit this to crash the system,
leading to a denial of service. (CVE-2011-2918)
Time Warns discovered that long symlinks were incorrectly handled on
Be filesystems. A local attacker could exploit this with a malformed
Be filesystem and crash the system, leading to a denial of service.
Darren Lavender discovered that the CIFS client incorrectly handled
certain large values. A remote attacker with a malicious server could
exploit this to crash the system or possibly execute arbitrary code as
the root user. (CVE-2011-3191)
Gideon Naim discovered a flaw in the Linux kernel's handling VLAN 0
frames. An attacker on the local network could exploit this flaw to
cause a denial of service. (CVE-2011-3593).
Update the affected packages.
Risk factor :
Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 8.7
Public Exploit Available : false
Family: Ubuntu Local Security Checks
Nessus Plugin ID: 56466 ()
Bugtraq ID: 4779648333484724880248804489074892949108491524925649295
CVE ID: CVE-2011-1576CVE-2011-1776CVE-2011-1833CVE-2011-2213CVE-2011-2497CVE-2011-2699CVE-2011-2700CVE-2011-2723CVE-2011-2918CVE-2011-2928CVE-2011-3191CVE-2011-3593
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