Ubuntu Security Notice 2354-1 - 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). 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). Various other issues were also addressed.
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Ubuntu Security Notice USN-2354-1
September 23, 2014
linux vulnerabilities
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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: Linux kernel
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 versions:
Ubuntu 10.04 LTS:
linux-image-2.6.32-66-386 2.6.32-66.132
linux-image-2.6.32-66-generic 2.6.32-66.132
linux-image-2.6.32-66-generic-pae 2.6.32-66.132
linux-image-2.6.32-66-ia64 2.6.32-66.132
linux-image-2.6.32-66-lpia 2.6.32-66.132
linux-image-2.6.32-66-powerpc 2.6.32-66.132
linux-image-2.6.32-66-powerpc-smp 2.6.32-66.132
linux-image-2.6.32-66-powerpc64-smp 2.6.32-66.132
linux-image-2.6.32-66-preempt 2.6.32-66.132
linux-image-2.6.32-66-server 2.6.32-66.132
linux-image-2.6.32-66-sparc64 2.6.32-66.132
linux-image-2.6.32-66-sparc64-smp 2.6.32-66.132
linux-image-2.6.32-66-versatile 2.6.32-66.132
linux-image-2.6.32-66-virtual 2.6.32-66.132
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:
http://www.ubuntu.com/usn/usn-2354-1
CVE-2014-5471, CVE-2014-5472
Package Information:
https://launchpad.net/ubuntu/+source/linux/2.6.32-66.132