USN-1798-1: Linux kernel (EC2) vulnerabilities
First published: Tue Apr 09 2013(Updated: )
Mathias Krause discovered several errors in the Linux kernel's xfrm_user implementation. A local attacker could exploit these flaws to examine parts of kernel memory. (CVE-2012-6537) Mathias Krause discovered information leak in the Linux kernel's compat ioctl interface. A local user could exploit the flaw to examine parts of kernel stack memory (CVE-2012-6539) Mathias Krause discovered an information leak in the Linux kernel's getsockopt for IP_VS_SO_GET_TIMEOUT. A local user could exploit this flaw to examine parts of kernel stack memory. (CVE-2012-6540) Emese Revfy discovered that in the Linux kernel signal handlers could leak address information across an exec, making it possible to by pass ASLR (Address Space Layout Randomization). A local user could use this flaw to by pass ASLR to reliably deliver an exploit payload that would otherwise be stopped (by ASLR). (CVE-2013-0914) A memory use after free error was discover in the Linux kernel's tmpfs filesystem. A local user could exploit this flaw to gain privileges or cause a denial of service (system crash). (CVE-2013-1767) Mateusz Guzik discovered a race in the Linux kernel's keyring. A local user could exploit this flaw to cause a denial of service (system crash). (CVE-2013-1792)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-2.6.32-351-ec2 | <2.6.32-351.63 | 2.6.32-351.63 |
| Ubuntu gir1.2-packagekitglib-1.0 | =10.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2012-6537
- https://ubuntu.com/security/CVE-2012-6539
- https://ubuntu.com/security/CVE-2012-6540
- https://ubuntu.com/security/CVE-2013-0914
- https://ubuntu.com/security/CVE-2013-1767
- https://ubuntu.com/security/CVE-2013-1792
- https://ubuntu.com/security/notices/USN-1648-1
- https://ubuntu.com/security/notices/USN-1644-1
- https://ubuntu.com/security/notices/USN-1649-1
- https://ubuntu.com/security/notices/USN-1645-1
- https://ubuntu.com/security/notices/USN-1792-1
- https://ubuntu.com/security/notices/USN-1646-1
- https://ubuntu.com/security/notices/USN-1647-1
- https://ubuntu.com/security/notices/USN-1652-1
- https://ubuntu.com/security/notices/USN-1599-1
- https://ubuntu.com/security/notices/USN-1610-1
- https://ubuntu.com/security/notices/USN-1788-1
- https://ubuntu.com/security/notices/USN-1794-1
- https://ubuntu.com/security/notices/USN-1793-1
- https://ubuntu.com/security/notices/USN-1796-1
- https://ubuntu.com/security/notices/USN-1795-1
- https://ubuntu.com/security/notices/USN-1797-1
- https://ubuntu.com/security/notices/USN-1787-1
- https://launchpad.net/ubuntu/+source/linux-ec2/2.6.32-351.63
- https://ubuntu.com/security/notices/USN-1798-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-1798-1?
The severity of USN-1798-1 is categorized as high due to the potential for local attackers to exploit memory leak vulnerabilities.
How do I fix USN-1798-1?
To fix USN-1798-1, you should upgrade your kernel to version 2.6.32-351.63 or later.
What systems are affected by USN-1798-1?
USN-1798-1 affects Ubuntu 10.04 systems with the linux-image-2.6.32-351-ec2 package.
What vulnerabilities are addressed in USN-1798-1?
USN-1798-1 addresses an information leak in the xfrm_user implementation and compat ioctl interface.
Is USN-1798-1 exploitable remotely?
No, USN-1798-1 is not exploitable remotely; it requires local access to the system.
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