CVE-2023-52433

2024-02-2000:00:00

ubuntu.com

linux kernel

netfilter

nft_set_rbtree

sync gc

new elements

transaction

expired elements

commit

fix

vulnerability

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

10.5%

JSON

In the Linux kernel, the following vulnerability has been resolved:
netfilter: nft_set_rbtree: skip sync GC for new elements in this
transaction New elements in this transaction might expired before such
transaction ends. Skip sync GC for such elements otherwise commit path
might walk over an already released object. Once transaction is finished,
async GC will collect such expired element.

Notes

Author	Note
	Priority reason: Reported by Google kCTF
rodrigo-zaiden	the commit 2ee52ae94baabf7ee09cf2a8d854b990dac5d0e4 was considered one of the fix commits for CVE-2023-4244, as a follow up commit.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux< anyUNKNOWN
ubuntu22.04noarchlinux< anyUNKNOWN
ubuntu23.10noarchlinux< anyUNKNOWN
ubuntu24.04noarchlinux< anyUNKNOWN
ubuntu20.04noarchlinux-aws< anyUNKNOWN
ubuntu22.04noarchlinux-aws< anyUNKNOWN
ubuntu23.10noarchlinux-aws< anyUNKNOWN
ubuntu24.04noarchlinux-aws< anyUNKNOWN
ubuntu20.04noarchlinux-aws-5.15< anyUNKNOWN
ubuntu22.04noarchlinux-aws-6.5< anyUNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux	< any	UNKNOWN
ubuntu	22.04	noarch	linux	< any	UNKNOWN
ubuntu	23.10	noarch	linux	< any	UNKNOWN
ubuntu	24.04	noarch	linux	< any	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	23.10	noarch	linux-aws	< any	UNKNOWN
ubuntu	24.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< any	UNKNOWN
ubuntu	22.04	noarch	linux-aws-6.5	< any	UNKNOWN