USN-1787-1: Linux kernel vulnerabilities
First published: Tue Apr 02 2013(Updated: )
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-3.0.0-32-powerpc64-smp | <3.0.0-32.51 | 3.0.0-32.51 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-32-omap | <3.0.0-32.51 | 3.0.0-32.51 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-32-generic | <3.0.0-32.51 | 3.0.0-32.51 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-32-server | <3.0.0-32.51 | 3.0.0-32.51 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-32-powerpc-smp | <3.0.0-32.51 | 3.0.0-32.51 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-32-virtual | <3.0.0-32.51 | 3.0.0-32.51 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-32-powerpc | <3.0.0-32.51 | 3.0.0-32.51 |
| Ubuntu 22.04 LTS | =11.10 | |
| All of | ||
| ubuntu/linux-image-3.0.0-32-generic-pae | <3.0.0-32.51 | 3.0.0-32.51 |
| Ubuntu 22.04 LTS | =11.10 |
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Reference Links
- 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-1788-1
- https://ubuntu.com/security/notices/USN-1794-1
- https://ubuntu.com/security/notices/USN-1793-1
- https://ubuntu.com/security/notices/USN-1798-1
- https://ubuntu.com/security/notices/USN-1796-1
- https://ubuntu.com/security/notices/USN-1792-1
- https://ubuntu.com/security/notices/USN-1795-1
- https://ubuntu.com/security/notices/USN-1797-1
- https://launchpad.net/ubuntu/+source/linux/3.0.0-32.51
- https://ubuntu.com/security/notices/USN-1787-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-1787-1?
The severity of USN-1787-1 is classified as medium due to the potential for address information leakage.
How do I fix USN-1787-1?
To fix USN-1787-1, update the Linux kernel to version 3.0.0-32.51 or later.
What systems are affected by USN-1787-1?
USN-1787-1 affects Ubuntu 11.10 running specific versions of the Linux kernel.
How does USN-1787-1 impact ASLR?
USN-1787-1 allows local users to bypass ASLR, which can lead to exploit payload delivery.
Who discovered the vulnerability in USN-1787-1?
The vulnerability in USN-1787-1 was discovered by Emese Revfy.
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