USN-1938-1: Linux kernel vulnerabilities

Published Sep 5, 2013
·
Updated

Vasily Kulikov discovered a flaw in the Linux Kernel's perf tool that allows specified to be run as root. A local could exploit this flaw to run commands as root when using the perf tool. user could exploit this (CVE-2013-1060) A flaw was discovered in the Xen subsystem of the Linux kernel when it provides read-only access to a disk that supports TRIM or SCSI UNMAP to a guest OS. A privileged user in the guest OS could exploit this flaw to destroy data on the disk, even though the guest OS should not be able to write to the disk. (CVE-2013-2140) A flaw was discovered in the Linux kernel when an IPv6 socket is used to connect to an IPv4 destination. An unprivileged local user could exploit this flaw to cause a denial of service (system crash). (CVE-2013-2232) An information leak was discovered in the IPSec keysocket implementation in the Linux kernel. An local user could exploit this flaw to examine potentially sensitive information in kernel memory. (CVE-2013-2234) Hannes Frederic Sowa discovered a flaw in setsockopt UDPCORK option in the Linux kernel's IPv6 stack. A local user could exploit this flaw to cause a denial of service (system crash). (CVE-2013-4162) Hannes Frederic Sowa discovered a flaw in the IPv6 subsystem of the Linux kernel when the IPV6MTU setsockopt option has been specified in combination with the UDPCORK option. A local user could exploit this flaw to cause a denial of service (system crash). (CVE-2013-4163)

Affected Software

2 affected componentsFixes available
All of the following
ubuntu/linux-image-3.8.0-30-generic<3.8.0-30.44
3.8.0-30.44
Ubuntu Ubuntu=13.04

Event History

Sep 5, 2013
Advisory Published
via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of USN-1938-1?

The severity of USN-1938-1 is considered high due to the potential for local users to execute commands as root.

2

How do I fix USN-1938-1?

To fix USN-1938-1, update your Linux kernel to version 3.8.0-30.44 or higher.

3

What software is affected by USN-1938-1?

USN-1938-1 affects the linux-image-3.8.0-30-generic package on Ubuntu 13.04.

4

Is USN-1938-1 related to CVE-2013-1060?

Yes, USN-1938-1 addresses the vulnerability associated with CVE-2013-1060.

5

Can a remote attacker exploit USN-1938-1?

No, USN-1938-1 can only be exploited by local users on the affected system.

Contact

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