USN-2065-1: Linux kernel (EC2) vulnerabilities

Ubuntu Security Notice USN-2065-1

3rd January, 2014

linux-ec2 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-ec2 - Linux kernel for EC2

Details

Stephan Mueller reported an error in the Linux kernel's ansi cprng random

number generator. This flaw makes it easier for a local attacker to break

cryptographic protections. (CVE-2013-4345)

A flaw was discovered in the Linux kernel's IP Virtual Server (IP_VS)

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

flaw to gain additional administrative privileges. (CVE-2013-4588)

Nico Golde and Fabian Yamaguchi reported a flaw in the Linux kernel's

debugfs filesystem. An administrative local user could exploit this flaw to

cause a denial of service (OOPS). (CVE-2013-6378)

Nico Golde reported a flaw in the Linux kernel's userspace IO (uio) driver.

A local user could exploit this flaw to cause a denial of service (memory

corruption) or possibly gain privileges. (CVE-2013-6763)

Update instructions

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

Ubuntu 10.04 LTS:

linux-image-2.6.32-360-ec2 2.6.32-360.73

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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-2013-4345, CVE-2013-4588, CVE-2013-6378, CVE-2013-6763

via Ubuntu Security Notices http://www.ubuntu.com/usn/usn-2065-1/