USN-2128-1: Linux kernel vulnerabilities

Ubuntu Security Notice USN-2128-1

5th March, 2014

linux vulnerabilities

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

An information leak was discovered in the Linux kernel when inotify is used

to monitor the /dev/ptmx device. A local user could exploit this flaw to

discover keystroke timing and potentially discover sensitive information

like password length. (CVE-2013-0160)

Vasily Kulikov reported a flaw in the Linux kernel's implementation of

ptrace. An unprivileged local user could exploit this flaw to obtain

sensitive information from kernel memory. (CVE-2013-2929)

Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu

function of the Kernel Virtual Machine (KVM) subsystem. A local user could

exploit this flaw to gain privileges on the host machine. (CVE-2013-4587)

Andrew Honig reported a flaw in the apic_get_tmcct function of the Kernel

Virtual Machine (KVM) subsystem if the Linux kernel. A guest OS user could

exploit this flaw to cause a denial of service or host OS system crash.

(CVE-2013-6367)

Nico Golde and Fabian Yamaguchi reported a flaw in the driver for Adaptec

AACRAID scsi raid devices in the Linux kernel. A local user could use this

flaw to cause a denial of service or possibly other unspecified impact.

(CVE-2013-6380)

Nico Golde and Fabian Yamaguchi reported buffer underflow errors in the

implementation of the XFS filesystem in the Linux kernel. A local user with

CAP_SYS_ADMIN could exploit these flaw to cause a denial of service (memory

corruption) or possibly other unspecified issues. (CVE-2013-6382)

Evan Huus reported a buffer overflow in the Linux kernel's radiotap header

parsing. A remote attacker could cause a denial of service (buffer over-

read) via a specially crafted header. (CVE-2013-7027)

An information leak was discovered in the recvfrom, recvmmsg, and recvmsg

systemcalls when used with ISDN sockets in the Linux kernel. A local user

could exploit this leak to obtain potentially sensitive information from

kernel memory. (CVE-2013-7266)

An information leak was discovered in the recvfrom, recvmmsg, and recvmsg

systemcalls when used with apple talk sockets in the Linux kernel. A local

user could exploit this leak to obtain potentially sensitive information

from kernel memory. (CVE-2013-7267)

An information leak was discovered in the recvfrom, recvmmsg, and recvmsg

systemcalls when used with ipx protocol sockets in the Linux kernel. A

local user could exploit this leak to obtain potentially sensitive

information from kernel memory. (CVE-2013-7268)

An information leak was discovered in the recvfrom, recvmmsg, and recvmsg

systemcalls when used with the netrom address family in the Linux kernel. A

local user could exploit this leak to obtain potentially sensitive

information from kernel memory. (CVE-2013-7269)

An information leak was discovered in the recvfrom, recvmmsg, and recvmsg

systemcalls when used with packet address family sockets in the Linux

kernel. A local user could exploit this leak to obtain potentially

sensitive information from kernel memory. (CVE-2013-7270)

An information leak was discovered in the recvfrom, recvmmsg, and recvmsg

systemcalls when used with x25 protocol sockets in the Linux kernel. A

local user could exploit this leak to obtain potentially sensitive

information from kernel memory. (CVE-2013-7271)

An information leak was discovered in the Linux kernel's SIOCWANDEV ioctl

call. A local user with the CAP_NET_ADMIN capability could exploit this

flaw to obtain potentially sensitive information from kernel memory.

(CVE-2014-1444)

An information leak was discovered in the wanxl ioctl function the the

Linux kernel. A local user could exploit this flaw to obtain potentially

sensitive information from kernel memory. (CVE-2014-1445)

An information leak was discovered in the Linux kernel's hamradio YAM

driver for AX.25 packet radio. A local user with the CAP_NET_ADMIN

capability could exploit this flaw to obtain sensitive information from

kernel memory. (CVE-2014-1446)

Matthew Thode reported a denial of service vulnerability in the Linux

kernel when SELinux support is enabled. A local user with the CAP_MAC_ADMIN

capability (and the SELinux mac_admin permission if running in enforcing

mode) could exploit this flaw to cause a denial of service (kernel crash).

(CVE-2014-1874)

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 10.04 LTS:

linux-image-2.6.32-57-powerpc-smp 2.6.32-57.119

linux-image-2.6.32-57-versatile 2.6.32-57.119

linux-image-2.6.32-57-server 2.6.32-57.119

linux-image-2.6.32-57-powerpc64-smp 2.6.32-57.119

linux-image-2.6.32-57-lpia 2.6.32-57.119

linux-image-2.6.32-57-386 2.6.32-57.119

linux-image-2.6.32-57-generic-pae 2.6.32-57.119

linux-image-2.6.32-57-sparc64-smp 2.6.32-57.119

linux-image-2.6.32-57-preempt 2.6.32-57.119

linux-image-2.6.32-57-sparc64 2.6.32-57.119

linux-image-2.6.32-57-ia64 2.6.32-57.119

linux-image-2.6.32-57-virtual 2.6.32-57.119

linux-image-2.6.32-57-generic 2.6.32-57.119

linux-image-2.6.32-57-powerpc 2.6.32-57.119

To update your system, please follow these instructions: http://bit.ly/1aJDvTw.

After a standard system update you need to reboot your computer to make

all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have

been given a new version number, which requires you to recompile and

reinstall all third party kernel modules you might have installed. If

you use linux-restricted-modules, you have to update that package as

well to get modules which work with the new kernel version. Unless you

manually uninstalled the standard kernel metapackages (e.g. linux-generic,

linux-server, linux-powerpc), a standard system upgrade will automatically

perform this as well.

References

CVE-2013-0160, CVE-2013-2929, CVE-2013-4587, CVE-2013-6367, CVE-2013-6380, CVE-2013-6382, CVE-2013-7027, CVE-2013-7266, CVE-2013-7267, CVE-2013-7268, CVE-2013-7269, CVE-2013-7270, CVE-2013-7271, CVE-2014-1444, CVE-2014-1445, CVE-2014-1446, CVE-2014-1874

via Ubuntu Security Notices http://bit.ly/1eZD4JQ