Ubuntu Security Notice 2095-1 - Pageexec reported a bug in the Linux kernel's recvmsg syscall when called from code using the x32 ABI. An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or gain administrator privileges.
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Ubuntu Security Notice USN-2095-1
January 31, 2014
linux-lts-saucy vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
Summary:
The system could be made to crash or run programs as an administrator.
Software Description:
- linux-lts-saucy: Linux hardware enablement kernel from Saucy
Details:
Pageexec reported a bug in the Linux kernel's recvmsg syscall when called
from code using the x32 ABI. An unprivileged local user could exploit this
flaw to cause a denial of service (system crash) or gain administrator
privileges.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
linux-image-3.11.0-15-generic 3.11.0-15.25~precise1
linux-image-3.11.0-15-generic-lpae 3.11.0-15.25~precise1
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2095-1
CVE-2014-0038
Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-saucy/3.11.0-15.25~precise1