USN-2415-1: Linux kernel vulnerability
25 November 2014
The system could be made to deny write access to files.
Releases
Packages
- linux - Linux kernel
Details
Don Bailey discovered a flaw in the LZO decompress algorithm used by the
Linux kernel. An attacker could exploit this flaw to cause a denial of
service (memory corruption or OOPS). (CVE-2014-4608)
Andy Lutomirski discovered that the Linux kernel was not checking the
CAP_SYS_ADMIN when remounting filesystems to read-only. A local user could
exploit this flaw to cause a denial of service (loss of writability).
(CVE-2014-7975)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 10.04
-
linux-image-2.6.32-68-386
-
2.6.32-68.135
-
linux-image-2.6.32-68-powerpc
-
2.6.32-68.135
-
linux-image-2.6.32-68-powerpc64-smp
-
2.6.32-68.135
-
linux-image-2.6.32-68-generic-pae
-
2.6.32-68.135
-
linux-image-2.6.32-68-versatile
-
2.6.32-68.135
-
linux-image-2.6.32-68-generic
-
2.6.32-68.135
-
linux-image-2.6.32-68-sparc64
-
2.6.32-68.135
-
linux-image-2.6.32-68-virtual
-
2.6.32-68.135
-
linux-image-2.6.32-68-server
-
2.6.32-68.135
-
linux-image-2.6.32-68-ia64
-
2.6.32-68.135
-
linux-image-2.6.32-68-sparc64-smp
-
2.6.32-68.135
-
linux-image-2.6.32-68-preempt
-
2.6.32-68.135
-
linux-image-2.6.32-68-powerpc-smp
-
2.6.32-68.135
-
linux-image-2.6.32-68-lpia
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2.6.32-68.135
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
Related notices
- USN-2416-1: linux-image-2.6.32-372-ec2, linux-ec2
- USN-2419-1: linux-image-3.13.0-40-generic-lpae, linux-lts-trusty, linux-image-3.13.0-40-generic
- USN-2286-1: linux-image-3.8.0-44-generic, linux-lts-raring
- USN-2421-1: linux-image-3.16.0-25-powerpc-e500mc, linux-image-3.16.0-25-lowlatency, linux-image-3.16.0-25-powerpc-smp, linux, linux-image-3.16.0-25-powerpc64-emb, linux-image-3.16.0-25-generic-lpae, linux-image-3.16.0-25-generic, linux-image-3.16.0-25-powerpc64-smp
- USN-2417-1: linux-image-3.2.0-72-generic, linux-image-3.2.0-72-powerpc64-smp, linux-image-3.2.0-72-highbank, linux-image-3.2.0-72-omap, linux-image-3.2.0-72-virtual, linux, linux-image-3.2.0-72-powerpc-smp, linux-image-3.2.0-72-generic-pae
- USN-2289-1: linux-image-3.11.0-26-generic, linux-image-3.11.0-26-generic-lpae, linux
- USN-2420-1: linux-image-3.13.0-40-powerpc-e500mc, linux-image-extra-3.13.0-40-generic, linux-image-3.13.0-40-generic-lpae, linux-image-3.13.0-40-generic, linux-image-3.13.0-40-powerpc64-emb, linux-image-3.13.0-40-powerpc-smp, linux-image-3.13.0-40-powerpc64-smp, linux, linux-image-3.13.0-40-powerpc-e500, linux-image-3.13.0-40-lowlatency
- USN-2418-1: linux-image-3.2.0-1456-omap4, linux-ti-omap4