- Vulnerability/
- USN-1425-1
USN-1425-1: Linux kernel vulnerabilities
First published: Tue Apr 24 2012(Updated: )
Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. (CVE-2011-4347) Stephan Bärwolf discovered a flaw in the KVM (kernel-based virtual machine) subsystem of the Linux kernel. A local unprivileged user can crash use this flaw to crash VMs causing a deny of service. (CVE-2012-0045) A flaw was discovered in the Linux kernel's cifs file system. An unprivileged local user could exploit this flaw to crash the system leading to a denial of service. (CVE-2012-1090) H. Peter Anvin reported a flaw in the Linux kernel that could crash the system. A local user could exploit this flaw to crash the system. (CVE-2012-1097) Tetsuo Handa reported a flaw in the OOM (out of memory) killer of the Linux kernel. A local unprivileged user can exploit this flaw to cause system unstability and denial of services. (CVE-2012-4398)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-2.6.32-41-server | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-preempt | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-ia64 | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-generic-pae | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-386 | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-generic | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-powerpc | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-sparc64 | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-sparc64-smp | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-powerpc-smp | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-virtual | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-powerpc64-smp | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-versatile | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 | |
| All of | ||
| ubuntu/linux-image-2.6.32-41-lpia | <2.6.32-41.88 | 2.6.32-41.88 |
| Ubuntu 22.04 LTS | =10.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2011-4347
- https://ubuntu.com/security/CVE-2012-0045
- https://ubuntu.com/security/CVE-2012-1090
- https://ubuntu.com/security/CVE-2012-1097
- https://ubuntu.com/security/CVE-2012-4398
- https://ubuntu.com/security/notices/USN-1440-1
- https://ubuntu.com/security/notices/USN-1421-1
- https://ubuntu.com/security/notices/USN-1433-1
- https://ubuntu.com/security/notices/USN-1422-1
- https://ubuntu.com/security/notices/USN-1431-1
- https://ubuntu.com/security/notices/USN-1426-1
- https://ubuntu.com/security/notices/USN-1446-1
- https://ubuntu.com/security/notices/USN-1432-1
- https://ubuntu.com/security/notices/USN-1458-1
- https://launchpad.net/ubuntu/+source/linux/2.6.32-41.88
- https://ubuntu.com/security/notices/USN-1425-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-1425-1?
The severity of USN-1425-1 is categorized as a denial of service risk due to permission checking flaws in the Linux kernel.
How do I fix USN-1425-1?
To fix USN-1425-1, update your system to Linux kernel version 2.6.32-41.88 or later.
Which systems are affected by USN-1425-1?
USN-1425-1 affects Ubuntu 10.04 systems running specific versions of the Linux kernel.
What causes the USN-1425-1 vulnerability?
The USN-1425-1 vulnerability is caused by flawed permission checks for device assignment requests in the KVM ioctl.
Can a remote attacker exploit USN-1425-1?
No, USN-1425-1 is a local vulnerability that requires a local user to exploit it, leading to a denial of service.
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