First published: Mon May 21 2012(Updated: )
A flaw was found in the Linux kernel's KVM (Kernel Virtual Machine) virtual cpu setup. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. (CVE-2012-1601) Steve Grubb reported a flaw with Linux fscaps (file system base capabilities) when used to increase the permissions of a process. For application on which fscaps are in use a local attacker can disable address space randomization to make attacking the process with raised privileges easier. (CVE-2012-2123) A flaw was found in how the Linux kernel passed the replacement session keyring to a child process. An unprivileged local user could exploit this flaw to cause a denial of service (panic). (CVE-2012-2745)
Affected Software | Affected Version | How to fix |
---|---|---|
All of | ||
ubuntu/linux-image-3.2.0-24-generic-pae | <3.2.0-24.38 | 3.2.0-24.38 |
Ubuntu Libksba8 | =12.04 | |
All of | ||
ubuntu/linux-image-3.2.0-24-powerpc64-smp | <3.2.0-24.38 | 3.2.0-24.38 |
Ubuntu Libksba8 | =12.04 | |
All of | ||
ubuntu/linux-image-3.2.0-24-generic | <3.2.0-24.38 | 3.2.0-24.38 |
Ubuntu Libksba8 | =12.04 | |
All of | ||
ubuntu/linux-image-3.2.0-24-virtual | <3.2.0-24.38 | 3.2.0-24.38 |
Ubuntu Libksba8 | =12.04 | |
All of | ||
ubuntu/linux-image-3.2.0-24-omap | <3.2.0-24.38 | 3.2.0-24.38 |
Ubuntu Libksba8 | =12.04 | |
All of | ||
ubuntu/linux-image-3.2.0-24-powerpc-smp | <3.2.0-24.38 | 3.2.0-24.38 |
Ubuntu Libksba8 | =12.04 |
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(Contains the following vulnerabilities)
The severity of USN-1448-1 is categorized as high due to the potential for denial of service.
To fix USN-1448-1, users should upgrade to the recommended package version 3.2.0-24.38.
USN-1448-1 affects Ubuntu 12.04 with various Linux kernel packages including linux-image-3.2.0-24-generic-pae.
USN-1448-1 identifies a denial of service vulnerability that can be exploited by an unprivileged local user.
The vulnerability in USN-1448-1 was reported by Steve Grubb.