Review reviewHigh

CVE-2024-27397

Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, linux kernel

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: use timestamp to check for set element timeout Add a timestamp field at the beginning of the transaction, store it in the nftables per-netns area. Update set backend .insert, .deactivate and sync gc path to use the timestamp, this avoids that an element expires while control plane transaction is still unfinished. .lookup and .update, which are used from packet path, still use the current time to check if the element has expired. And .get path and dump also since this runs lockless under rcu read size l...

CVSS
7
EPSS
0.26%
18.1% percentile
CISA KEV
Not listed
Published
2024.05.15
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.26%
Technical severityCVSS 7

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: use timestamp to check for set element timeout Add a timestamp field at the beginning of the transaction, store it in the nftables per-netns area. Update set backend .insert, .deactivate and sync gc path to use the timestamp, this avoids that an element expires while control plane transaction is still unfinished. .lookup and .update, which are used from packet path, still use the current time to check if the element has expired. And .get path and dump also since this runs lockless under rcu read size l...

Affected product and versions

Product
Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, linux kernel
Affected versions
>= c3e1b005ed1cc068fc9d454a6e745830d55d251d < f8dfda798650241c1692058713ca4fef8e429061, >= c3e1b005ed1cc068fc9d454a6e745830d55d251d < eaf1a29ea5d7dba8e84e9e9f3b3f47d0cd540bfe, >= c3e1b005ed1cc068fc9d454a6e745830d55d251d < 7b17de2a71e56c10335b565cc7ad238e6d984379, >= c3e1b005ed1cc068fc9d454a6e745830d55d251d < 0d40e8cb1d1f56a994cdd2e015af622fdca9ed4d, >= c3e1b005ed1cc068fc9d454a6e745830d55d251d < b45176b869673417ace338b87cf9cdb66e2eeb01, >= c3e1b005ed1cc068fc9d454a6e745830d55d251d < 7fa2e2960fff8322ce2ded57b5f8e9cbc450b967, >= c3e1b005ed1cc068fc9d454a6e745830d55d251d < 383182db8d58c4237772ba0764cded4938a235c3, >= c3e1b005ed1cc068fc9d454a6e745830d55d251d < 7395dfacfff65e9938ac0889dafa1ab01e987d15, >= 4.1, >= 4.1 < 4.19.320, >= 4.20 < 5.4.282, >= 5.5 < 5.10.224, >= 5.11 < 5.15.165, >= 5.16 < 6.1.97, >= 6.2 < 6.6.84, >= 6.7 < 6.7.5, 6.8
Fixed versions
4.19.320, 5.4.282, 5.10.224, 5.15.165, 6.1.97, 6.6.84, 6.7.5

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, SIMATIC S7-1500 TM MFP - GNU/Linux subsystem, 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-416