USN-2355-1: Linux kernel (EC2) vulnerabilities

Ubuntu Security Notice USN-2355-1


23rd September, 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


Chris Evans reported an flaw in the Linux kernel's handling of iso9660

(compact disk filesystem) images. An attacker who can mount a custom

iso9660 image either via a CD/DVD drive or a loopback mount could cause a

denial of service (system crash or reboot). (CVE-2014-5471)


Chris Evans reported an flaw in the Linux kernel's handling of iso9660

(compact disk filesystem) images. An attacker who can mount a custom

iso9660 image, with a self-referential CL entry, either via a CD/DVD drive

or a loopback mount could cause a denial of service (unkillable mount

process). (CVE-2014-5472)


Update instructions


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



Ubuntu 10.04 LTS:

linux-image-2.6.32-370-ec2 2.6.32-370.86


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-2014-5471, CVE-2014-5472






from Ubuntu Security Notices http://bit.ly/1r6mjnk