CVE-2022-36879

Name: CVE-2022-36879
Creator: NVD / NIST
Published: 2022-07-27T04:15:10.74+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.30%

Last modified Jun 17, 2026

CVE-2022-36879 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.. EPSS estimates a 0.30% chance of exploitation in the next 30 days.

Description

An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.

Metrics

CVSS 3.1

5.5/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.30%

21.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	<= 5.18.14
Debian	Debian Linux	10.0
Debian	Debian Linux	11.0
Netapp	A700s Firmware	All versions
Netapp	Active Iq Unified Manager	All versions
Netapp	E-Series Santricity Os Controller	>= 11.0, <= 11.50.2
Netapp	Hci Bootstrap Os	All versions
Netapp	Aff 8300 Firmware	All versions
Netapp	Fas 8300 Firmware	All versions
Netapp	Aff 8700 Firmware	All versions
Netapp	Fas 8700 Firmware	All versions
Netapp	Aff A400 Firmware	All versions
Netapp	Fas A400 Firmware	All versions
Netapp	Aff A250 Firmware	All versions
Netapp	Fas A250 Firmware	All versions
Netapp	Fas 500f Firmware	All versions
Netapp	Aff 500f Firmware	All versions
Netapp	H300s Firmware	All versions
Netapp	H500s Firmware	All versions
Netapp	H700s Firmware	All versions
Netapp	H410s Firmware	All versions
Netapp	H410c Firmware	All versions
Netapp	H610c Firmware	All versions
Netapp	H610s Firmware	All versions
Netapp	H615c Firmware	All versions

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=f85daf0e725358be78dfd208dea5fd665d8cb901Mailing List, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/f85daf0e725358be78dfd208dea5fd665d8cb901Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00011.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220901-0007/Third Party Advisory
https://www.debian.org/security/2022/dsa-5207Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=f85daf0e725358be78dfd208dea5fd665d8cb901Mailing List, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/f85daf0e725358be78dfd208dea5fd665d8cb901Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/09/msg00011.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.htmlMailing List, Third Party Advisory
https://security.netapp.com/advisory/ntap-20220901-0007/Third Party Advisory
https://www.debian.org/security/2022/dsa-5207Third Party Advisory

Timeline

Published: Jul 27, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-36879?

An issue was discovered in the Linux kernel through 5.18.14. xfrm_expand_policies in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice.

How severe is CVE-2022-36879?

CVE-2022-36879 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.30% probability of exploitation in the next 30 days.

How do I fix CVE-2022-36879?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-36879?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST