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CVE-2023-39189

Date: October 9, 2023

A flaw was found in the Netfilter subsystem in the Linux kernel. The nfnl_osf_add_callback function did not validate the user mode controlled opt_num field. This flaw allows a local privileged (CAP_NET_ADMIN) attacker to trigger an out-of-bounds read, leading to a crash or information disclosure.

Language: C

Severity Score

Related Resources (8)

https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
https://access.redhat.com/errata/RHSA-2024:2394
https://access.redhat.com/security/cve/CVE-2023-39189
https://access.redhat.com/errata/RHSA-2024:3138
https://access.redhat.com/errata/RHSA-2024:2950
https://nvd.nist.gov/vuln/detail/CVE-2023-39189
https://bugzilla.redhat.com/show_bug.cgi?id=2226777
https://www.mend.io/vulnerability-database/CVE-2023-39189

Severity Score

Weakness Type (CWE)

Out-of-bounds Read

CWE-125

CVSS v3.1

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

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