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CVE-2023-4147

Good to know:

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Date: August 7, 2023

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.

Language: C

Severity Score

Related Resources (16)

https://www.debian.org/security/2023/dsa-5492
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
https://www.debian.org/security/2023/dsa-5480
https://nvd.nist.gov/vuln/detail/CVE-2023-4147
https://access.redhat.com/security/cve/CVE-2023-4147
https://access.redhat.com/errata/RHSA-2023:5093
https://bugzilla.redhat.com/show_bug.cgi?id=2225239
https://access.redhat.com/errata/RHSA-2023:7382
https://access.redhat.com/errata/RHSA-2023:5091
https://access.redhat.com/errata/RHSA-2023:7389
https://access.redhat.com/errata/RHSA-2023:7411
https://access.redhat.com/errata/RHSA-2023:5069
https://security.netapp.com/advisory/ntap-20231020-0006/
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ebc1064e4874d5987722a2ddbc18f94aa53b211
https://www.spinics.net/lists/stable/msg671573.html
https://www.mend.io/vulnerability-database/CVE-2023-4147

Severity Score

Weakness Type (CWE)

Use After Free

CWE-416

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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