PT-2022-4764 · Linux+8 · Linux Kernel+8
Hangyu Hua
+1
·
Published
2022-06-02
·
Updated
2025-05-05
·
CVE-2022-36879
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions through 5.18.14
Description
An issue was discovered in the Linux kernel where the
xfrm expand policies function in net/xfrm/xfrm policy.c can cause a refcount to be dropped twice, potentially leading to a denial of service. This issue can be exploited by a remote attacker.Recommendations
For Linux kernel versions through 5.18.14, as a temporary workaround, consider disabling the
xfrm expand policies function until a patch is available. Restrict access to the net/xfrm/xfrm policy.c module to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Improper Resource Release
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Astra Linux
Centos
Linuxmint
Linux Kernel
Red Hat
Red Os
Suse
Ubuntu