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Ubuntu 14.04 LTS USN-6460-1 Critical: Kernel Denial of Service Fixes

ubuntu
Calendar Grey October 30, 2023
Dist Ubuntu Esm H88
The newest updates for Ubuntu focus on fixing significant flaws in the Linux kernel, improving both the security and reliability of the operating system.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux: Linux kernel

Details:

It was discovered that the IPv6 implementation in the Linux kernel

contained a high rate of hash collisions in connection lookup table. A

remote attacker could use this to cause a denial of service (excessive CPU

consumption). (CVE-2023-1206)

It was discovered that the Broadcom FullMAC USB WiFi driver in the Linux

kernel did not properly perform data buffer size validation in some

situations. A physically proximate attacker could use this to craft a

malicious USB device that when inserted, could cause a denial of service

(system crash) or possibly expose sensitive information. (CVE-2023-1380)

Gwangun Jung discovered that the Quick Fair Queueing scheduler

implementation in the Linux kernel contained an out-of-bounds write

vulnerability. A local attacker could use this to cause a denial of service

(system crash) or possibly execute arbitrary code. (C...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu kernel system crash security issues

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   linux-image-3.13.0-194-generic  3.13.0-194.245
   linux-image-3.13.0-194-lowlatency  3.13.0-194.245
   linux-image-generic             3.13.0.194.204
   linux-image-generic-lts-trusty  3.13.0.194.204
   linux-image-lowlatency          3.13.0.194.204
   linux-image-server              3.13.0.194.204
   linux-image-virtual             3.13.0.194.204

After a standard system update you need to reboot your computer to make
all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.

References

https://ubuntu.com/security/notices/USN-6460-1

CVE-2023-1206, CVE-2023-1380, CVE-2023-31436, CVE-2023-35001,

CVE-2023-42752, CVE-2023-42755, CVE-2023-4623

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6460-1

Topics%20covered

Topics Covered

security advisory denial of service critical Ubuntu kernel system crash security issues

Package Information

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