CVE-2023-4147

high

Published 2023-09-12 · Modified 2023-09-14

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

8.0

Description

A use-after-free flaw was found in the Linux kernel’s Netfilter functionality when adding a rule with NFTA_RULE_CHAIN_ID. This flaw allows a local user to crash or escalate their privileges on the system.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

AlmaLinux Fixed 1 release

Version	Status	Fixed in
9	Fixed	`kernel-debug-devel-matched-5.14.0-284.30.1.el9_2.aarch64.rpm`

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`6.4.11-1`
sid	Fixed	`6.4.11-1`
forky	Fixed	`6.4.11-1`
bullseye	Fixed	`5.10.191-1`
bookworm	Fixed	`6.1.52-1`

Red Hat Fixed 1 release

Version	Status	Fixed in
9	Fixed	—

Rocky Linux Fixed 1 release

Version	Status	Fixed in
9	Fixed	—

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.