- Vulnerability/
- USN-2017-1
USN-2017-1: Linux kernel vulnerabilities
First published: Fri Nov 08 2013(Updated: )
A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service by creating a large number of files with names that have the same CRC32 hash value. (CVE-2012-5374) A denial of service flaw was discovered in the Btrfs file system in the Linux kernel. A local user could cause a denial of service (prevent file creation) for a victim, by creating a file with a specific CRC32C hash value in a directory important to the victim. (CVE-2012-5375) Dan Carpenter discovered an information leak in the HP Smart Array and Compaq SMART2 disk-array driver in the Linux kernel. A local user could exploit this flaw to obtain sensitive information from kernel memory. (CVE-2013-2147)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-3.2.0-56-generic-pae | <3.2.0-56.86 | 3.2.0-56.86 |
| Ubuntu 22.04 LTS | =12.04 | |
| All of | ||
| ubuntu/linux-image-3.2.0-56-omap | <3.2.0-56.86 | 3.2.0-56.86 |
| Ubuntu 22.04 LTS | =12.04 | |
| All of | ||
| ubuntu/linux-image-3.2.0-56-powerpc-smp | <3.2.0-56.86 | 3.2.0-56.86 |
| Ubuntu 22.04 LTS | =12.04 | |
| All of | ||
| ubuntu/linux-image-3.2.0-56-powerpc64-smp | <3.2.0-56.86 | 3.2.0-56.86 |
| Ubuntu 22.04 LTS | =12.04 | |
| All of | ||
| ubuntu/linux-image-3.2.0-56-generic | <3.2.0-56.86 | 3.2.0-56.86 |
| Ubuntu 22.04 LTS | =12.04 | |
| All of | ||
| ubuntu/linux-image-3.2.0-56-highbank | <3.2.0-56.86 | 3.2.0-56.86 |
| Ubuntu 22.04 LTS | =12.04 | |
| All of | ||
| ubuntu/linux-image-3.2.0-56-virtual | <3.2.0-56.86 | 3.2.0-56.86 |
| Ubuntu 22.04 LTS | =12.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2012-5374
- https://ubuntu.com/security/CVE-2012-5375
- https://ubuntu.com/security/CVE-2013-2147
- https://ubuntu.com/security/notices/USN-1947-1
- https://ubuntu.com/security/notices/USN-1946-1
- https://ubuntu.com/security/notices/USN-2018-1
- https://ubuntu.com/security/notices/USN-1944-1
- https://ubuntu.com/security/notices/USN-1945-1
- https://ubuntu.com/security/notices/USN-2023-1
- https://ubuntu.com/security/notices/USN-2020-1
- https://ubuntu.com/security/notices/USN-1999-1
- https://ubuntu.com/security/notices/USN-1994-1
- https://ubuntu.com/security/notices/USN-1996-1
- https://ubuntu.com/security/notices/USN-2016-1
- https://ubuntu.com/security/notices/USN-2015-1
- https://ubuntu.com/security/notices/USN-2050-1
- https://ubuntu.com/security/notices/USN-1997-1
- https://launchpad.net/ubuntu/+source/linux/3.2.0-56.86
- https://ubuntu.com/security/notices/USN-2017-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-2017-1?
The severity of USN-2017-1 is classified as a denial of service vulnerability affecting the Btrfs file system in the Linux kernel.
How do I fix USN-2017-1?
To fix USN-2017-1, update your Linux kernel to version 3.2.0-56.86 or higher.
What systems are affected by USN-2017-1?
USN-2017-1 affects Ubuntu 12.04 systems running the Linux kernel packages such as linux-image-3.2.0-56-generic.
Can a remote attacker exploit USN-2017-1?
No, USN-2017-1 is a local denial of service vulnerability, meaning only local users can exploit it.
What is the root cause of USN-2017-1?
The root cause of USN-2017-1 is a flaw in the Btrfs file system that allows local users to create a large number of files with duplicate CRC32 hash values, leading to denial of service.
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