CVE-2022-40768: Medium severity Linux Linux kernel vulnerability

Published Sep 18, 2022
·
Updated

drivers/scsi/stex.c in the Linux kernel through 5.19.9 allows local users to obtain sensitive information from kernel memory because stexqueuecommandlck lacks a memset for the PASSTHRUCMD case.

Affected Software

6 affected componentsFixes available
Linux Linux kernel<=5.19.9
Fedoraproject Fedora=35
Fedoraproject Fedora=36
Fedoraproject Fedora=37
Debian Debian Linux=10.0
debian/linux
5.10.223-15.10.234-16.1.129-16.1.135-16.12.25-16.12.27-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1
  2. Upgrade

    Upgrade Linux kernel stex driver (drivers/scsi/stex.c) to a version that resolves this vulnerability.

    Fixed in 5.19.9

Event History

Sep 18, 2022
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·05:15 AM
RemedyDescriptionSeverityWeaknessAffected Software
Mar 28, 2024
Data Sourced
via Launchpad·12:43 AM
Description
Apr 28, 2025
Data Sourced
via Ubuntu·05:02 AM
RemedyDescriptionSeverityAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2022-40768?

CVE-2022-40768 is classified as a medium severity vulnerability affecting the Linux kernel.

2

How do I fix CVE-2022-40768?

To fix CVE-2022-40768, update your Linux kernel to version 5.19.10 or later.

3

Which versions of the Linux kernel are affected by CVE-2022-40768?

CVE-2022-40768 affects the Linux kernel versions up to and including 5.19.9.

4

Can CVE-2022-40768 allow unauthorized access to sensitive data?

Yes, CVE-2022-40768 can potentially allow local users to obtain sensitive information from kernel memory.

5

Is CVE-2022-40768 specific to any particular Linux distribution?

CVE-2022-40768 affects multiple distributions including Fedora 35, 36, 37 and Debian Linux 10.0.

Contact

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