USN-2466-1: Linux kernel vulnerabilities
First published: Tue Jan 13 2015(Updated: )
A null pointer dereference flaw was discovered in the the Linux kernel's SCTP implementation when ASCONF is used. A remote attacker could exploit this flaw to cause a denial of service (system crash) via a malformed INIT chunk. (CVE-2014-7841) A race condition with MMIO and PIO transactions in the KVM (Kernel Virtual Machine) subsystem of the Linux kernel was discovered. A guest OS user could exploit this flaw to cause a denial of service (guest OS crash) via a specially crafted application. (CVE-2014-7842) Miloš Prchlík reported a flaw in how the ARM64 platform handles a single byte overflow in __clear_user. A local user could exploit this flaw to cause a denial of service (system crash) by reading one byte beyond a /dev/zero page boundary. (CVE-2014-7843) A stack buffer overflow was discovered in the ioctl command handling for the Technotrend/Hauppauge USB DEC devices driver. A local user could exploit this flaw to cause a denial of service (system crash) or possibly gain privileges. (CVE-2014-8884)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-3.13.0-44-generic | <3.13.0-44.73 | 3.13.0-44.73 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-44-generic-lpae | <3.13.0-44.73 | 3.13.0-44.73 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-44-lowlatency | <3.13.0-44.73 | 3.13.0-44.73 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-44-powerpc-e500 | <3.13.0-44.73 | 3.13.0-44.73 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-44-powerpc-e500mc | <3.13.0-44.73 | 3.13.0-44.73 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-44-powerpc-smp | <3.13.0-44.73 | 3.13.0-44.73 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-44-powerpc64-emb | <3.13.0-44.73 | 3.13.0-44.73 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-44-powerpc64-smp | <3.13.0-44.73 | 3.13.0-44.73 |
| Ubuntu 22.04 LTS | =14.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2014-7841
- https://ubuntu.com/security/CVE-2014-7842
- https://ubuntu.com/security/CVE-2014-7843
- https://ubuntu.com/security/CVE-2014-8884
- https://ubuntu.com/security/notices/USN-2468-1
- https://ubuntu.com/security/notices/USN-2442-1
- https://ubuntu.com/security/notices/USN-2467-1
- https://ubuntu.com/security/notices/USN-2465-1
- https://ubuntu.com/security/notices/USN-2443-1
- https://ubuntu.com/security/notices/USN-2441-1
- https://ubuntu.com/security/notices/USN-2444-1
- https://ubuntu.com/security/notices/USN-2464-1
- https://ubuntu.com/security/notices/USN-2463-1
- https://launchpad.net/ubuntu/+source/linux/3.13.0-44.73
- https://ubuntu.com/security/notices/USN-2466-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-2466-1?
USN-2466-1 is classified as a denial of service vulnerability that could lead to system crashes.
How do I fix USN-2466-1?
To fix USN-2466-1, upgrade to linux-image-3.13.0-44.73 or a later version.
Is my system affected by USN-2466-1?
USN-2466-1 affects Ubuntu version 14.04 with specific linux-image packages.
What vulnerability does USN-2466-1 relate to?
USN-2466-1 is related to CVE-2014-7841, which involves a null pointer dereference in the SCTP implementation.
Can USN-2466-1 be exploited remotely?
Yes, a remote attacker can exploit USN-2466-1 by sending a malformed INIT chunk to cause a denial of service.
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