CVE-2022-21504

Severity: low (CVSS 2.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2022-06-14 · updated 2026-06-17
Weakness: CWE-416

Description

The code in UEK6 U3 was missing an appropiate file descriptor count to be missing. This resulted in a use count error that allowed a file descriptor to a socket to be closed and freed while it was still in use by another portion of the kernel. An attack with local access can operate on the socket, and cause a denial of service. CVSS 3.1 Base Score 5.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).

Affected products

Oracle Corporation Oracle Linux: 7, 8

References

https://github.com/oracle/linux-uek/commit/49c68f5f892d8c2be00e0a89ff2a035422c03b59
https://github.com/oracle/linux-uek/commit/49c68f5f892d8c2be00e0a89ff2a035422c03b59

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