Home / mailings [USN-1805-1] Linux kernel vulnerabilities
Posted on 19 April 2013
Ubuntu Security==========================
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Ubuntu Security Notice USN-1805-1
April 19, 2013
linux vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 10.04 LTS
Summary:
Several security issues were fixed in the kernel.
Software Description:
- linux: Linux kernel
Details:
Mathias Krause discovered an information leak in the Linux kernel's
getsockname implementation for Logical Link Layer (llc) sockets. A local
user could exploit this flaw to examine some of the kernel's stack memory=
=2E
(CVE-2012-6542)
Mathias Krause discovered information leaks in the Linux kernel's Bluetoo=
th
Logical Link Control and Adaptation Protocol (L2CAP) implementation. A
local user could exploit these flaws to examine some of the kernel's stac=
k
memory. (CVE-2012-6544)
Mathias Krause discovered information leaks in the Linux kernel's Bluetoo=
th
RFCOMM protocol implementation. A local user could exploit these flaws to=
examine parts of kernel memory. (CVE-2012-6545)
Mathias Krause discovered information leaks in the Linux kernel's
Asynchronous Transfer Mode (ATM) networking stack. A local user could
exploit these flaws to examine some parts of kernel memory. (CVE-2012-654=
6)
Mathias Krause discovered an information leak in the Linux kernel's UDF
file system implementation. A local user could exploit this flaw to exami=
ne
some of the kernel's heap memory. (CVE-2012-6548)
Andrew Jones discovered a flaw with the xen_iret function in Linux kernel=
's
Xen virtualizeation. In the 32-bit Xen paravirt platform an unprivileged
guest OS user could exploit this flaw to cause a denial of service (crash=
the system) or gain guest OS privilege. (CVE-2013-0228)
An information leak was discovered in the Linux kernel's Bluetooth stack
when HIDP (Human Interface Device Protocol) support is enabled. A local
unprivileged user could exploit this flaw to cause an information leak fr=
om
the kernel. (CVE-2013-0349)
A flaw was discovered in the Edgeort USB serial converter driver when the=
device is disconnected while it is in use. A local user could exploit thi=
s
flaw to cause a denial of service (system crash). (CVE-2013-1774)
Andrew Honig discovered a flaw in guest OS time updates in the Linux
kernel's KVM (Kernel-based Virtual Machine). A privileged guest user coul=
d
exploit this flaw to cause a denial of service (crash host system) or
potential escalate privilege to the host kernel level. (CVE-2013-1796)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 10.04 LTS:
linux-image-2.6.32-46-386 2.6.32-46.108
linux-image-2.6.32-46-generic 2.6.32-46.108
linux-image-2.6.32-46-generic-pae 2.6.32-46.108
linux-image-2.6.32-46-ia64 2.6.32-46.108
linux-image-2.6.32-46-lpia 2.6.32-46.108
linux-image-2.6.32-46-powerpc 2.6.32-46.108
linux-image-2.6.32-46-powerpc-smp 2.6.32-46.108
linux-image-2.6.32-46-powerpc64-smp 2.6.32-46.108
linux-image-2.6.32-46-preempt 2.6.32-46.108
linux-image-2.6.32-46-server 2.6.32-46.108
linux-image-2.6.32-46-sparc64 2.6.32-46.108
linux-image-2.6.32-46-sparc64-smp 2.6.32-46.108
linux-image-2.6.32-46-versatile 2.6.32-46.108
linux-image-2.6.32-46-virtual 2.6.32-46.108
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1805-1
CVE-2012-6542, CVE-2012-6544, CVE-2012-6545, CVE-2012-6546,
CVE-2012-6548, CVE-2013-0228, CVE-2013-0349, CVE-2013-1774,
CVE-2013-1796
Package Information:
https://launchpad.net/ubuntu/+source/linux/2.6.32-46.108
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