Ubuntu 10.04 LTS / 10.10 : linux, linux-ec2 vulnerabilities (USN-1054-1)

Ubuntu Security Notice (C) 2011-2013 Canonical, Inc. / NASL script (C) 2011-2013 Tenable Network Security, Inc.


Synopsis :

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

Description :

Gleb Napatov discovered that KVM did not correctly check certain
privileged operations. A local attacker with access to a guest kernel
could exploit this to crash the host system, leading to a denial of
service. (CVE-2010-0435)

Dan Rosenberg discovered that the Linux kernel TIPC implementation
contained multiple integer signedness errors. A local attacker could
exploit this to gain root privileges. (CVE-2010-3859)

Dan Rosenberg discovered that the Linux kernel X.25 implementation
incorrectly parsed facilities. A remote attacker could exploit this to
crash the kernel, leading to a denial of service. (CVE-2010-3873)

Dan Rosenberg discovered that the CAN protocol on 64bit systems did
not correctly calculate the size of certain buffers. A local attacker
could exploit this to crash the system or possibly execute arbitrary
code as the root user. (CVE-2010-3874)

Vasiliy Kulikov discovered that kvm did not correctly clear memory. A
local attacker could exploit this to read portions of the kernel
stack, leading to a loss of privacy. (CVE-2010-3881)

Dan Rosenberg discovered that IPC structures were not correctly
initialized on 64bit systems. A local attacker could exploit this to
read kernel stack memory, leading to a loss of privacy.
(CVE-2010-4073)

Dan Rosenberg discovered that the ivtv V4L driver did not correctly
initialize certian structures. A local attacker could exploit this to
read kernel stack memory, leading to a loss of privacy.
(CVE-2010-4079)

Dan Rosenberg discovered that the semctl syscall did not correctly
clear kernel memory. A local attacker could exploit this to read
kernel stack memory, leading to a loss of privacy. (CVE-2010-4083)

Dan Rosenberg discovered that the socket filters did not correctly
initialize structure memory. A local attacker could create malicious
filters to read portions of kernel stack memory, leading to a loss of
privacy. (CVE-2010-4158)

Dan Rosenberg discovered that the Linux kernel L2TP implementation
contained multiple integer signedness errors. A local attacker could
exploit this to to crash the kernel, or possibly gain root privileges.
(CVE-2010-4160)

Dan Rosenberg discovered that certain iovec operations did not
calculate page counts correctly. A local attacker could exploit this
to crash the system, leading to a denial of service. (CVE-2010-4162)

Dan Rosenberg discovered multiple flaws in the X.25 facilities
parsing. If a system was using X.25, a remote attacker could exploit
this to crash the system, leading to a denial of service.
(CVE-2010-4164)

Steve Chen discovered that setsockopt did not correctly check MSS
values. A local attacker could make a specially crafted socket call to
crash the system, leading to a denial of service. (CVE-2010-4165)

Dave Jones discovered that the mprotect system call did not correctly
handle merged VMAs. A local attacker could exploit this to crash the
system, leading to a denial of service. (CVE-2010-4169)

Dan Rosenberg discovered that the RDS protocol did not correctly check
ioctl arguments. A local attacker could exploit this to crash the
system, leading to a denial of service. (CVE-2010-4175)

Brad Spengler discovered that the kernel did not correctly account for
userspace memory allocations during exec() calls. A local attacker
could exploit this to consume all system memory, leading to a denial
of service. (CVE-2010-4243)

Vegard Nossum discovered that memory garbage collection was not
handled correctly for active sockets. A local attacker could exploit
this to allocate all available kernel memory, leading to a denial of
service. (CVE-2010-4249)

It was discovered that named pipes did not correctly handle certain
fcntl calls. A local attacker could exploit this to crash the system,
leading to a denial of service. (CVE-2010-4256)

Nelson Elhage discovered that the kernel did not correctly handle
process cleanup after triggering a recoverable kernel bug. If a local
attacker were able to trigger certain kinds of kernel bugs, they could
create a specially crafted process to gain root privileges.
(CVE-2010-4258).

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
Public Exploit Available : true