USN-1673-1: Linux kernel (OMAP4) vulnerability
First published: Wed Dec 19 2012(Updated: )
Dmitry Monakhov reported a race condition flaw the Linux ext4 filesystem that can expose stale data. An unprivileged user could exploit this flaw to cause an information leak. (CVE-2012-4508) A flaw was discovered in the Linux kernel's handling of new hot-plugged memory. An unprivileged local user could exploit this flaw to cause a denial of service by crashing the system. (CVE-2012-5517) An information leak was discovered in the Linux kernel's /dev/dvb device. A local user could exploit this flaw to obtain sensitive information from the kernel's stack memory. (CVE-2013-1928)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-3.5.0-216-omap4 | <3.5.0-216.23 | 3.5.0-216.23 |
| Ubuntu gir1.2-packagekitglib-1.0 | =12.10 |
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Reference Links
- https://ubuntu.com/security/CVE-2012-4508
- https://ubuntu.com/security/CVE-2012-5517
- https://ubuntu.com/security/CVE-2013-1928
- https://ubuntu.com/security/notices/USN-1644-1
- https://ubuntu.com/security/notices/USN-1719-1
- https://ubuntu.com/security/notices/USN-1900-1
- https://ubuntu.com/security/notices/USN-1645-1
- https://ubuntu.com/security/notices/USN-1704-1
- https://ubuntu.com/security/notices/USN-1671-1
- https://ubuntu.com/security/notices/USN-1720-1
- https://ubuntu.com/security/notices/USN-1726-1
- https://ubuntu.com/security/notices/USN-1899-1
- https://ubuntu.com/security/notices/USN-1679-1
- https://ubuntu.com/security/notices/USN-1678-1
- https://ubuntu.com/security/notices/USN-1670-1
- https://ubuntu.com/security/notices/USN-1677-1
- https://ubuntu.com/security/notices/USN-1669-1
- https://ubuntu.com/security/notices/USN-1648-1
- https://ubuntu.com/security/notices/USN-1649-1
- https://ubuntu.com/security/notices/USN-1829-1
- https://ubuntu.com/security/notices/USN-1824-1
- https://ubuntu.com/security/notices/USN-1652-1
- https://launchpad.net/ubuntu/+source/linux-ti-omap4/3.5.0-216.23
- https://ubuntu.com/security/notices/USN-1673-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-1673-1?
The severity of USN-1673-1 is considered medium due to the potential information leak it presents.
How do I fix USN-1673-1?
To fix USN-1673-1, upgrade to the patched version of the linux-image-3.5.0-216-omap4 package.
Who is affected by USN-1673-1?
USN-1673-1 affects unprivileged users running Ubuntu 12.10 with the specific kernel version below 3.5.0-216.23.
What causes the flaw in USN-1673-1?
The flaw in USN-1673-1 is caused by a race condition in the Linux ext4 filesystem that can expose stale data.
Can an attacker exploit USN-1673-1 remotely?
No, USN-1673-1 requires local unprivileged access to exploit the information leak.
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