USN-2977-1: Linux kernel (Vivid HWE) vulnerability
Ubuntu Security Notice USN-2977-1
16th May, 2016
linux-lts-vivid vulnerability
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 14.04 LTS
Summary
The system could be made to crash or run programs as an administrator.
Software description
- linux-lts-vivid
– Linux hardware enablement kernel from Vivid for Trusty
Details
Philip Pettersson discovered that the Linux kernel's ASN.1 DER decoder did
not properly process certificate files with tags of indefinite length. A
local unprivileged attacker could use this to cause a denial of service
(system crash) or possibly execute arbitrary code with administrative
privileges.
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 14.04 LTS:
-
linux-image-3.19.0-59-powerpc64-smp
3.19.0-59.66~14.04.1
-
linux-image-3.19.0-59-lowlatency
3.19.0-59.66~14.04.1
-
linux-image-3.19.0-59-powerpc64-emb
3.19.0-59.66~14.04.1
-
linux-image-3.19.0-59-powerpc-smp
3.19.0-59.66~14.04.1
-
linux-image-3.19.0-59-powerpc-e500mc
3.19.0-59.66~14.04.1
-
linux-image-3.19.0-59-generic-lpae
3.19.0-59.66~14.04.1
-
linux-image-3.19.0-59-generic
3.19.0-59.66~14.04.1
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.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-vivid, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
References
Source: USN-2977-1: Linux kernel (Vivid HWE) vulnerability
