SARA / Free Tools / CVE / CVE-2023-6679

CVE-2023-6679 — A null pointer dereference vulnerability was found in dpll_pin_parent_pin_set()

A null pointer dereference vulnerability was found in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.c in the Digital Phase Locked Loop (DPLL) subsystem in the Linux kernel. This issue could be exploited to trigger a denial of service.

CVSS
5.5 MEDIUM
EPSS
0.01% (top 98.20%)
CWE
CWE-476
Published
2023-12-11T18:31:28.840Z
Last modified
2025-11-21T06:23:16.249Z
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

01What is this vulnerability?

A null pointer dereference vulnerability was found in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.c in the Digital Phase Locked Loop (DPLL) subsystem in the Linux kernel. This issue could be exploited to trigger a denial of service.

02Affected products

VendorProductVersions
Red HatRed Hat Enterprise Linux 90:5.14.0-362.18.1.el9_3
Red HatRed Hat Enterprise Linux 90:5.14.0-362.18.1.el9_3
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support0:5.14.0-284.48.1.el9_2
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support0:5.14.0-284.48.1.rt14.333.el9_2
Red HatRed Hat Enterprise Linux 6unspecified
Red HatRed Hat Enterprise Linux 7unspecified
Red HatRed Hat Enterprise Linux 7unspecified
Red HatRed Hat Enterprise Linux 8unspecified
Red HatRed Hat Enterprise Linux 8unspecified
Red HatRed Hat Enterprise Linux 9unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

Want this in your SOAR or SIEM?
SARA's API returns EPSS, CVSS, KEV, and an analyst-grade summary in one call.
Read the API reference →