CVE-2023-53304

EPSS 0.15%
Veröffentlicht 16.09.2025 16:11:44
Zuletzt bearbeitet 14.01.2026 19:16:23
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netfilter: nft_set_rbtree: fix overlap expiration walk

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nft_set_rbtree: fix overlap expiration walk

The lazy gc on insert that should remove timed-out entries fails to release
the other half of the interval, if any.

Can be reproduced with tests/shell/testcases/sets/0044interval_overlap_0
in nftables.git and kmemleak enabled kernel.

Second bug is the use of rbe_prev vs. prev pointer.
If rbe_prev() returns NULL after at least one iteration, rbe_prev points
to element that is not an end interval, hence it should not be removed.

Lastly, check the genmask of the end interval if this is active in the
current generation.

Betroffene Produkte Warnungen 0 Metriken 3 CWE 1 Referenzen 10

NVD 11 VulnDex Vulnerability Enrichment 7

Daten sind bereitgestellt durch National Vulnerability Database (NVD)

Linux ≫ Linux Kernel Version >= 5.10.166 < 5.10.190

Linux ≫ Linux Kernel Version >= 5.15.91 < 5.15.124

Linux ≫ Linux Kernel Version >= 6.1.9 < 6.1.43

Linux ≫ Linux Kernel Version >= 6.2.1 < 6.4.8

Linux ≫ Linux Kernel Version6.2 Update-

Linux ≫ Linux Kernel Version6.2 Updaterc6

Linux ≫ Linux Kernel Version6.2 Updaterc7

Linux ≫ Linux Kernel Version6.2 Updaterc8

Linux ≫ Linux Kernel Version6.5 Updaterc1

Linux ≫ Linux Kernel Version6.5 Updaterc2

Linux ≫ Linux Kernel Version6.5 Updaterc3

VulnDex Vulnerability Enrichment

Diese Information steht angemeldeten Benutzern zur Verfügung.

Zu dieser CVE wurde keine Warnung gefunden.

EPSS Metriken
Typ	Quelle	Score	Percentile
EPSS	FIRST.org	0.15%	0.041

CVSS Metriken
Quelle	Base Score	Exploit Score	Impact Score	Vector String
nvd@nist.gov	5.5	1.8	3.6	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0	5.5	1.8	3.6	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H