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CVE-2023-4147

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

7.8

Related Resources (16)

Url: https://www.debian.org/security/2023/dsa-5492

Url: https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html

Url: https://www.debian.org/security/2023/dsa-5480

Url: https://nvd.nist.gov/vuln/detail/CVE-2023-4147

Url: https://access.redhat.com/security/cve/CVE-2023-4147

Url: https://access.redhat.com/errata/RHSA-2023:5093

Url: https://bugzilla.redhat.com/show_bug.cgi?id=2225239

Url: https://access.redhat.com/errata/RHSA-2023:7382

Url: https://access.redhat.com/errata/RHSA-2023:5091

Url: https://access.redhat.com/errata/RHSA-2023:7389

Url: https://access.redhat.com/errata/RHSA-2023:7411

Url: https://access.redhat.com/errata/RHSA-2023:5069

Url: https://security.netapp.com/advisory/ntap-20231020-0006/

Url: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=0ebc1064e4874d5987722a2ddbc18f94aa53b211

Url: https://www.spinics.net/lists/stable/msg671573.html

Url: https://www.mend.io/vulnerability-database/CVE-2023-4147

Severity Score

7.8

Weakness Type (CWE)

Use After Free

CWE-416

CVSS v3.1

Base Score:	7.8
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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