CVE-2022-42432

kernel: netfilter: nfnetlink_osf: uninitialized variable information disclosure vulnerability

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Severity

Low

Red Hat Product Security

5.1

CVSS 3.1

Review impact separately from score.

Published · September 22, 2022

Updated · October 15, 2026

Description

A flaw was found in the nft_osf_eval function in the netfilter subsystem of the Linux kernel. This issue results from the lack of proper initialization of memory prior to accessing it, and could allow a local privileged user to leak stale kernel stack data to userspace.

Statement

Red Hat Enterprise Linux 6, 7 and 8 are not affected by this flaw as they did not include support for Netfilter OSF over nfnetlink (CONFIG_NETFILTER_NETLINK_OSF).

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L

CWE-457 · Use of Uninitialized Variable