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Ubuntu 22.04 LTS USN-5616-1 Critical: Linux Kernel Denial of Service

ubuntu
Calendar Grey September 16, 2022
Dist Ubuntu Esm H88
Numerous significant vulnerabilities in the Linux kernel addressed in Ubuntu 22.04. Ensure your system is updated for protection.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-intel-iotg: Linux kernel for Intel IoT platforms

Details:

Asaf Modelevsky discovered that the Intel(R) 10GbE PCI Express (ixgbe)

Ethernet driver for the Linux kernel performed insufficient control flow

management. A local attacker could possibly use this to cause a denial

of service. (CVE-2021-33061)

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP

implementation in the Linux kernel did notprovide sufficient

randomization when calculating port offsets. An attacker could possibly

use this to expose sensitive information. (CVE-2022-1012, CVE-2022-32296)

Norbert Slusarek discovered that a race condition existed in the perf

subsystem in the Linux kernel, resulting in a use-after-free

vulnerability. A privileged local attacker could use this to cause a

denial of service (system crash) or possibly execute arbitrary code.

(CVE-2022-1729)

Qiuhao Li, Gaoning...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service system update ubuntu security flaws linux kernel intel iotg

Update Instructions

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

Ubuntu 22.04 LTS:
   linux-image-5.15.0-1015-intel-iotg  5.15.0-1015.20
   linux-image-intel-iotg          5.15.0.1015.16

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-5616-1

CVE-2021-33061, CVE-2022-1012, CVE-2022-1729, CVE-2022-1852,

CVE-2022-1943, CVE-2022-1973, CVE-2022-2503, CVE-2022-2873,

CVE-2022-2959, CVE-2022-32296

Severity
critical
Lowest
Low
Medium
High
Critical

September 16, 2022

Topics%20covered

Topics Covered

security advisory denial of service system update ubuntu security flaws linux kernel intel iotg

Package Information

https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1015.20

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