USN-2395-1: Linux kernel vulnerabilities
First published: Thu Oct 30 2014(Updated: )
Nadav Amit reported that the KVM (Kernel Virtual Machine) mishandles noncanonical addresses when emulating instructions that change the rip (Instruction Pointer). A guest user with access to I/O or the MMIO can use this flaw to cause a denial of service (system crash) of the guest. (CVE-2014-3647) A flaw was discovered with the handling of the invept instruction in the KVM (Kernel Virtual Machine) subsystem of the Linux kernel. An unprivileged guest user could exploit this flaw to cause a denial of service (system crash) on the guest. (CVE-2014-3646) Lars Bull reported a race condition in the PIT (programmable interrupt timer) emulation in the KVM (Kernel Virtual Machine) subsystem of the Linux kernel. A local guest user with access to PIT i/o ports could exploit this flaw to cause a denial of service (crash) on the host. (CVE-2014-3611) Lars Bull and Nadav Amit reported a flaw in how KVM (the Kernel Virtual Machine) handles noncanonical writes to certain MSR registers. A privileged guest user can exploit this flaw to cause a denial of service (kernel panic) on the host. (CVE-2014-3610) A bounds check error was discovered in the driver for the Logitech Unifying receivers and devices. A physically proximate attacker could exploit this flaw to to cause a denial of service (invalid kfree) or to execute arbitrary code. (CVE-2014-3182) Raphael Geissert reported a NULL pointer dereference in the Linux kernel's CIFS client. A remote CIFS server could cause a denial of service (system crash) or possibly have other unspecified impact by deleting IPC$ share during resolution of DFS referrals. (CVE-2014-7145)
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| ubuntu/linux-image-3.13.0-39-generic | <3.13.0-39.66 | 3.13.0-39.66 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-39-generic-lpae | <3.13.0-39.66 | 3.13.0-39.66 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-39-lowlatency | <3.13.0-39.66 | 3.13.0-39.66 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-39-powerpc-e500 | <3.13.0-39.66 | 3.13.0-39.66 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-39-powerpc-e500mc | <3.13.0-39.66 | 3.13.0-39.66 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-39-powerpc-smp | <3.13.0-39.66 | 3.13.0-39.66 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-39-powerpc64-emb | <3.13.0-39.66 | 3.13.0-39.66 |
| Ubuntu 22.04 LTS | =14.04 | |
| All of | ||
| ubuntu/linux-image-3.13.0-39-powerpc64-smp | <3.13.0-39.66 | 3.13.0-39.66 |
| Ubuntu 22.04 LTS | =14.04 |
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Reference Links
- https://ubuntu.com/security/CVE-2014-3182
- https://ubuntu.com/security/CVE-2014-3610
- https://ubuntu.com/security/CVE-2014-3611
- https://ubuntu.com/security/CVE-2014-3646
- https://ubuntu.com/security/CVE-2014-3647
- https://ubuntu.com/security/CVE-2014-7145
- https://ubuntu.com/security/notices/USN-2376-1
- https://ubuntu.com/security/notices/USN-2377-1
- https://ubuntu.com/security/notices/USN-2394-1
- https://ubuntu.com/security/notices/USN-2491-1
- https://ubuntu.com/security/notices/USN-2462-1
- https://ubuntu.com/security/notices/USN-2396-1
- https://ubuntu.com/security/notices/USN-2417-1
- https://ubuntu.com/security/notices/USN-2418-1
- https://launchpad.net/ubuntu/+source/linux/3.13.0-39.66
- https://ubuntu.com/security/notices/USN-2395-1 (Advisory)
Child vulnerabilities
(Contains the following vulnerabilities)
Frequently Asked Questions
What is the severity of USN-2395-1?
USN-2395-1 is classified as having a high severity due to the potential for denial of service attacks.
How do I fix USN-2395-1?
To fix USN-2395-1, you should update to the linux-image package version 3.13.0-39.66 or later.
Which versions of Ubuntu are affected by USN-2395-1?
USN-2395-1 affects Ubuntu 14.04 with specific kernel package versions.
What vulnerability does USN-2395-1 address?
USN-2395-1 addresses vulnerabilities in the KVM that mishandles noncanonical addresses leading to system crashes.
Who reported the vulnerability associated with USN-2395-1?
The vulnerability associated with USN-2395-1 was reported by Nadav Amit.
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