Ubuntu Security Notice 2271-1 - Andy Lutomirski discovered a flaw with the Linux kernel's ptrace syscall on x86_64 processors. An attacker could exploit this flaw to cause a denial of service (System Crash) or potential gain administrative privileges.
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Ubuntu Security Notice USN-2271-1
July 05, 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:
Andy Lutomirski discovered a flaw with the Linux kernel's ptrace syscall on
x86_64 processors. An attacker could exploit this flaw to cause a denial of
service (System Crash) or potential gain administrative privileges.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
linux-image-3.11.0-24-generic 3.11.0-24.42~precise1
linux-image-3.11.0-24-generic-lpae 3.11.0-24.42~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-2271-1
CVE-2014-4699
Package Information:
https://launchpad.net/ubuntu/+source/linux-lts-saucy/3.11.0-24.42~precise1