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Review reviewHigh

CVE-2022-49919

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: release flow rule object from commit path No need to postpone this to the commit release path, since no packets are walking over this object, this is accessed from control plane only. This helped uncovered UAF triggered by races with the netlink notifier.

CVSS
7
EPSS
0.15%
4.77% percentile
CISA KEV
Not listed
Published
2025.05.02
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.15%
Technical severityCVSS 7

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: release flow rule object from commit path No need to postpone this to the commit release path, since no packets are walking over this object, this is accessed from control plane only. This helped uncovered UAF triggered by races with the netlink notifier.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 5b8d63489c3b701eb2a76f848ec94d8cbc9373b9 < 74fd5839467054cd9c4d050614d3ee8788386171, >= 330c0c6cd2150a2d7f47af16aa590078b0d2f736 < b2d7a92aff0fbd93c29d2aa6451fb99f050e2c4e, >= e33d9bd563e71f6c6528b96008d65524a459c4dc < 6044791b7be707fd0e709f26e961a446424e5051, >= 9dd732e0bdf538b1b76dc7c157e2b5e560ff30d3 < 4ab6f96444e936f5e4a936d5c0bc948144bcded3, >= 9dd732e0bdf538b1b76dc7c157e2b5e560ff30d3 < 26b5934ff4194e13196bedcba373cd4915071d0e, >= 80de9ea1f5b808a6601e91111fae601df2b26369, >= ab9f34a30c23f656e76f4c5b83125a4e7b53c86e, >= 5.4.198 < 5.4.224, >= 5.10.122 < 5.10.154, >= 5.15.47 < 5.15.78, >= 5.17.15 < 5.18, >= 5.18.4 < 5.19, >= 5.19, >= 5.18.4 < 6.0.8, 6.1
Fixed versions
5.4.224, 5.10.154, 5.15.78, 5.18, 6.0.8

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-362, CWE-416
CVE-2022-49919 — Linux Linux, linux kernel | SECUFOCUS NOW