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Ubuntu 22.04 LTS: USN-6725-2 Critical: Linux Kernel Denial Of Service

ubuntu
Calendar Grey April 16, 2024
Dist Ubuntu Esm H88
Multiple vulnerabilities identified in the Ubuntu Linux kernel addressed in the recent advisory. Upgrade immediately to improve your system's security.
Several security issues were fixed in the Linux kernel.

Summary

Several security issues were fixed in the Linux kernel.

Software Description:

- linux-aws: Linux kernel for Amazon Web Services (AWS) systems

- linux-aws-5.15: Linux kernel for Amazon Web Services (AWS) systems

Details:

Chih-Yen Chang discovered that the KSMBD implementation in the Linux kernel

did not properly validate certain data structure fields when parsing lease

contexts, leading to an out-of-bounds read vulnerability. A remote attacker

could use this to cause a denial of service (system crash) or possibly

expose sensitive information. (CVE-2023-1194)

Quentin Minster discovered that a race condition existed in the KSMBD

implementation in the Linux kernel, leading to a use-after-free

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

service (system crash) or possibly execute arbitrary code. (CVE-2023-32254)

It was discovered that a race condition existed in the KSMBD implementation

in the Linux kernel when handling session connectio...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service security issue critical ubuntu linux kernel aws

Update Instructions

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

Ubuntu 22.04 LTS:
   linux-image-5.15.0-1057-aws     5.15.0-1057.63
   linux-image-aws-lts-22.04       5.15.0.1057.58

Ubuntu 20.04 LTS:
   linux-image-5.15.0-1057-aws     5.15.0-1057.63~20.04.1
   linux-image-aws                 5.15.0.1057.63~20.04.1

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-6725-2

https://ubuntu.com/security/notices/USN-6725-1

CVE-2023-1194, CVE-2023-32254, CVE-2023-32258, CVE-2023-38427,

CVE-2023-38430, CVE-2023-38431, CVE-2023-3867, CVE-2023-46838,

CVE-2023-52340, CVE-2023-52429, CVE-2023-52436, CVE-2023-52438,

CVE-2023-52439, CVE-2023-52441, CVE-2023-52442, CVE-2023-52443,

CVE-2023-52444, CVE-2023-52445, CVE-2023-52448, CVE-2023-52449,

CVE-2023-52451, CVE-2023-52454, CVE-2023-52456, CVE-2023-52457,

CVE-2023-52458, CVE-2023-52462, CVE-2023-52463, CVE-2023-52464,

CVE-2023-52467, CVE-2023-52469, CVE-2023-52470, CVE-2023-52480,

CVE-2023-52609, CVE-2023-52610, CVE-2023-52612, CVE-2024-22705,

CVE-2024-23850, CVE-2024-23851, CVE-2024-24860, CVE-2024-26586,

CVE-2024-26589, CVE-2024-26591, CVE-2024-26597, CVE-2024-26598,

CVE-2024-26631, CVE-2024-26633

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6725-2

Topics%20covered

Topics Covered

security advisory denial of service security issue critical ubuntu linux kernel aws

Package Information

https://launchpad.net/ubuntu/+source/linux-aws/5.15.0-1057.63
https://launchpad.net/ubuntu/+source/linux-aws-5.15/5.15.0-1057.63~20.04.1

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