CVE-2023-6176

Kernel: local dos vulnerability in scatterwalk_copychunks

Description

A null pointer dereference flaw was found in the Linux kernel API for the cryptographic algorithm scatterwalk functionality. This issue occurs when a user constructs a malicious packet with specific socket configuration, which could allow a local user to crash the system or escalate their privileges on the system.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 8
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 9
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 9
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/errata/RHSA-2024:2394 vendor advisory
https://access.redhat.com/errata/RHSA-2024:2950 vendor advisory
https://access.redhat.com/errata/RHSA-2024:3138 vendor advisory
https://access.redhat.com/security/cve/CVE-2023-6176 third party advisory vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2219359 issue tracking
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cfaa80c91f6f99b9342b6557f0f0e1143e434066 patch mailing list
http://packetstormsecurity.com/files/177029/Kernel-Live-Patch-Security-Notice-LSN-0100-1.html

Frequently Asked Questions

What is the severity of CVE-2023-6176?
CVE-2023-6176 has been scored as a medium severity vulnerability.
How to fix CVE-2023-6176?
To fix CVE-2023-6176, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-6176 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-6176 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-6176?
CVE-2023-6176 affects Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 8, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 9, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 9.
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