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Ubuntu 13.10: USN-2289-1 Moderate - Linux Kernel Security Issues

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Calendar Grey July 17, 2014
Scroller Ubuntu
On February 12, 2021, numerous vulnerabilities in the Linux kernel within Fedora were addressed through important patches. Key information outlined.
Several security issues were fixed in the kernel.

Summary

Several security issues were fixed in the kernel.

Software Description:

- linux: Linux kernel

Details:

Sasha Levin reported a flaw in the Linux kernel's point-to-point protocol

(PPP) when used with the Layer Two Tunneling Protocol (L2TP). A local user

could exploit this flaw to gain administrative privileges. (CVE-2014-4943)

Michael S. Tsirkin discovered an information leak in the Linux kernel's

segmentation of skbs when using the zerocopy feature of vhost-net. A local

attacker could exploit this flaw to gain potentially sensitive information

from kernel memory. (CVE-2014-0131)

A flaw was discovered in the Linux kernel's audit subsystem when auditing

certain syscalls. A local attacker could exploit this flaw to obtain

potentially sensitive single-bit values from kernel memory or cause a

denial of service (OOPS). (CVE-2014-3917)

A flaw was discovered in the Linux kernel's implementation of user

namespaces with respect to inode permissions. A local user c...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service information leak Ubuntu kernel system update administrative privileges

Update Instructions

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

Ubuntu 13.10:
  linux-image-3.11.0-26-generic   3.11.0-26.45
  linux-image-3.11.0-26-generic-lpae  3.11.0-26.45

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

https://ubuntu.com/security/notices/USN-2289-1

CVE-2014-0131, CVE-2014-3917, CVE-2014-4014, CVE-2014-4608,

CVE-2014-4611, CVE-2014-4943

Severity
important
Lowest
Low
Medium
High
Critical

July 17, 2014

Topics%20covered

Topics Covered

security advisory denial of service information leak Ubuntu kernel system update administrative privileges

Package Information

https://launchpad.net/ubuntu/+source/linux/3.11.0-26.45

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