- Vulnerability/
- USN-1689-1
USN-1689-1: Linux kernel vulnerabilities
First published: Tue Jan 15 2013(Updated: )
Jon Howell reported a flaw in the Linux kernel's KVM (Kernel-based virtual machine) subsystem's handling of the XSAVE feature. On hosts, using qemu userspace, without the XSAVE feature an unprivileged local attacker could exploit this flaw to crash the system. (CVE-2012-4461) A flaw was discovered in the Linux kernel's handling of script execution when module loading is enabled. A local attacker could exploit this flaw to cause a leak of kernel stack contents. (CVE-2012-4530)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-3.0.0-30-server | <3.0.0-30.47 | 3.0.0-30.47 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-30-powerpc-smp | <3.0.0-30.47 | 3.0.0-30.47 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-30-virtual | <3.0.0-30.47 | 3.0.0-30.47 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-30-powerpc64-smp | <3.0.0-30.47 | 3.0.0-30.47 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-30-powerpc | <3.0.0-30.47 | 3.0.0-30.47 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-30-generic-pae | <3.0.0-30.47 | 3.0.0-30.47 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-30-omap | <3.0.0-30.47 | 3.0.0-30.47 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-30-generic | <3.0.0-30.47 | 3.0.0-30.47 |
| Ubuntu 22.04 LTS | =11.10 |
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Reference Links
- https://ubuntu.com/security/CVE-2012-4461
- https://ubuntu.com/security/CVE-2012-4530
- https://ubuntu.com/security/notices/USN-1696-1
- https://ubuntu.com/security/notices/USN-1704-1
- https://ubuntu.com/security/notices/USN-1688-1
- https://ubuntu.com/security/notices/USN-1699-1
- https://ubuntu.com/security/notices/USN-1700-1
- https://ubuntu.com/security/notices/USN-1683-1
- https://ubuntu.com/security/notices/USN-1698-1
- https://ubuntu.com/security/notices/USN-1684-1
- https://ubuntu.com/security/notices/USN-1691-1
- https://launchpad.net/ubuntu/+source/linux/3.0.0-30.47
- https://ubuntu.com/security/notices/USN-1689-1 (Advisory)
Frequently Asked Questions
What is the severity of USN-1689-1?
The severity of USN-1689-1 is critical due to the potential for local unprivileged attackers to crash the system.
How do I fix USN-1689-1?
To fix USN-1689-1, you should update to the kernel version 3.0.0-30.47 or later.
What systems are affected by USN-1689-1?
USN-1689-1 affects Ubuntu 11.10 running the kernel versions prior to 3.0.0-30.47.
What kind of attack can exploit USN-1689-1?
USN-1689-1 can be exploited by an unprivileged local attacker to crash the system.
Is there a workaround for USN-1689-1?
There is no recommended workaround for USN-1689-1; updating the kernel is the only safe resolution.
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