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Ubuntu 22.04 LTS USN-6516-1 Critical: Kernel Denial of Service Issues

ubuntu
Calendar Grey November 27, 2023
Dist Ubuntu Esm H88
Essential update for the Ubuntu community addressing critical kernel fixes and vulnerabilities to combat security threats.
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

- linux-intel-iotg-5.15: Linux kernel for Intel IoT platforms

Details:

Ivan D Barrera, Christopher Bednarz, Mustafa Ismail, and Shiraz Saleem

discovered that the InfiniBand RDMA driver in the Linux kernel did not

properly check for zero-length STAG or MR registration. A remote attacker

could possibly use this to execute arbitrary code. (CVE-2023-25775)

Yu Hao and Weiteng Chen discovered that the Bluetooth HCI UART driver in

the Linux kernel contained a race condition, leading to a null pointer

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

denial of service (system crash). (CVE-2023-31083)

Yu Hao discovered that the UBI driver in the Linux kernel did not properly

check for MTD with zero erasesize during device attachment. A local

privileged attacker could use this to cause a denial of service (system

...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow kernel ubuntu intel iot

Update Instructions

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

Ubuntu 22.04 LTS:
   linux-image-5.15.0-1045-intel-iotg  5.15.0-1045.51
   linux-image-intel-iotg          5.15.0.1045.45

Ubuntu 20.04 LTS:
   linux-image-5.15.0-1045-intel-iotg  5.15.0-1045.51~20.04.1
   linux-image-intel               5.15.0.1045.51~20.04.35
   linux-image-intel-iotg          5.15.0.1045.51~20.04.35

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

CVE-2023-25775, CVE-2023-31083, CVE-2023-31085, CVE-2023-3772,

CVE-2023-45871

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6516-1

Topics%20covered

Topics Covered

security advisory denial of service buffer overflow kernel ubuntu intel iot

Package Information

https://launchpad.net/ubuntu/+source/linux-intel-iotg/5.15.0-1045.51
https://launchpad.net/ubuntu/+source/linux-intel-iotg-5.15/5.15.0-1045.51~20.04.1

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