CVE-2023-5972

Kernel: the nfta_inner_num and nfta_expr_name netlink attributes accessed without checking its presence in nft_inner.c

Description

A null pointer dereference flaw was found in the nft_inner.c functionality of netfilter in the Linux kernel. This issue could allow a local user to crash the system or escalate their privileges on the system.

Category

7.0
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.01%
Third-Party Advisory redhat.com
Affected: n/a kernel
Affected: Red Hat Red Hat Enterprise Linux 6
Affected: Red Hat Red Hat Enterprise Linux 7
Affected: Red Hat Red Hat Enterprise Linux 7
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: Fedora Fedora
Published at:
Updated at:

References

Link Tags
https://access.redhat.com/security/cve/CVE-2023-5972 third party advisory vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=2248189 patch issue tracking
https://github.com/torvalds/linux/commit/505ce0630ad5d31185695f8a29dde8d29f28faa7 patch
https://github.com/torvalds/linux/commit/52177bbf19e6e9398375a148d2e13ed492b40b80 patch

Frequently Asked Questions

What is the severity of CVE-2023-5972?
CVE-2023-5972 has been scored as a high severity vulnerability.
How to fix CVE-2023-5972?
To fix CVE-2023-5972, 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-2023-5972 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-5972 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-2023-5972?
CVE-2023-5972 affects n/a kernel, Red Hat Red Hat Enterprise Linux 6, Red Hat Red Hat Enterprise Linux 7, Red Hat Red Hat Enterprise Linux 7, 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, Fedora Fedora.
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