USN-1881-1: Linux kernel vulnerabilities

Published Jun 14, 2013
·
Updated

Andy Lutomirski discover an error in the Linux kernel's credential handling on unix sockets. A local user could exploit this flaw to gain administrative privileges. (CVE-2013-1979) 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) An information leak was discovered in the Linux kernel's tkill and tgkill system calls when used from compat processes. A local user could exploit this flaw to examine potentially sensitive kernel memory. (CVE-2013-2141) A flaw was discovered in the Linux kernel's perf events subsystem for Intel Sandy Bridge and Ivy Bridge processors. A local user could exploit this flaw to cause a denial of service (system crash). (CVE-2013-2146) An information leak was discovered in the Linux kernel's crypto API. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3076) An information leak was discovered in the Linux kernel's rcvmsg path for ATM (Asynchronous Transfer Mode). A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3222) An information leak was discovered in the Linux kernel's recvmsg path for ax25 address family. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3223) An information leak was discovered in the Linux kernel's recvmsg path for the bluetooth address family. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3224) An information leak was discovered in the Linux kernel's bluetooth rfcomm protocol support. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3225) An information leak was discovered in the Linux kernel's CAIF protocol implementation. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3227) An information leak was discovered in the Linux kernel's IRDA (infrared) support subsystem. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3228) An information leak was discovered in the Linux kernel's s390 - z/VM support. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3229) An information leak was discovered in the Linux kernel's l2tp (Layer Two Tunneling Protocol) implementation. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3230) An information leak was discovered in the Linux kernel's llc (Logical Link Layer 2) support. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3231) An information leak was discovered in the Linux kernel's receive message handling for the netrom address family. A local user could exploit this flaw to obtain sensitive information from the kernel's stack memory. (CVE-2013-3232) An information leak was discovered in the Linux kernel's nfc (near field communication) support. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3233) An information leak was discovered in the Linux kernel's Rose X.25 protocol layer. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3234) An information leak was discovered in the Linux kernel's TIPC (Transparent Inter Process Communication) protocol implementation. A local user could exploit this flaw to examine potentially sensitive information from the kernel's stack memory. (CVE-2013-3235)

Affected Software

10 affected componentsFixes available
All of the following
ubuntu/linux-image-3.5.0-34-highbank<3.5.0-34.55
3.5.0-34.55
Ubuntu Ubuntu=12.10
All of the following
ubuntu/linux-image-3.5.0-34-powerpc-smp<3.5.0-34.55
3.5.0-34.55
Ubuntu Ubuntu=12.10
All of the following
ubuntu/linux-image-3.5.0-34-omap<3.5.0-34.55
3.5.0-34.55
Ubuntu Ubuntu=12.10
All of the following
ubuntu/linux-image-3.5.0-34-generic<3.5.0-34.55
3.5.0-34.55
Ubuntu Ubuntu=12.10
All of the following
ubuntu/linux-image-3.5.0-34-powerpc64-smp<3.5.0-34.55
3.5.0-34.55
Ubuntu Ubuntu=12.10

Event History

Jun 14, 2013
Advisory Published
via Ubuntu·12:00 AM

Frequently Asked Questions

1

What is the severity of USN-1881-1?

USN-1881-1 is considered to have a high severity due to the potential for local users to gain administrative privileges.

2

How do I fix USN-1881-1?

To fix USN-1881-1, you should upgrade to the specified Linux kernel version 3.5.0-34.55.

3

Who is affected by USN-1881-1?

USN-1881-1 affects users of Ubuntu 12.10 running specific kernel versions.

4

What vulnerabilities are addressed in USN-1881-1?

USN-1881-1 addresses vulnerabilities including CVE-2013-1979, which involves credential handling errors in the Linux kernel.

5

Can a remote attacker exploit USN-1881-1?

No, USN-1881-1 can only be exploited by local users, not remote attackers.

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