PT-2023-5552 · Linux+5 · Linux Kernel+5

Ga_Ryo + 1 · Published 2023-01-20 · Updated 2026-03-13 · CVE-2023-39191

Positive Technologies (AI Summary)

CVSS v3.1

8.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux Kernel (affected versions not specified)

Description The issue is related to an improper input validation flaw in the eBPF subsystem of the Linux kernel. This flaw occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. As a result, an attacker with CAP BPF privileges may be able to escalate privileges and execute arbitrary code in the context of the kernel.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2024-14046

ALT-PU-2024-6818

AZL-31150

BDU:2023-06203

CVE-2023-39191

ECHO-FFFA-184D-8E08

OPENSUSE-SU-2023_4343-1

OPENSUSE-SU-2023_4375-1

OPENSUSE-SU-2023_4414-1

RHSA-2023:6583

RHSA-2023_6583

RHSA-2024:0381

RHSA-2024:0439

RHSA-2024:0448

SUSE-SU-2023:4343-1

SUSE-SU-2023:4375-1

SUSE-SU-2023:4414-1

SUSE-SU-2024:0986-1

SUSE-SU-2024:0995-1

SUSE-SU-2024:1023-1

SUSE-SU-2024:1039-1

SUSE-SU-2024:1045-1

SUSE-SU-2024:1097-1

ZDI-23-1489

Affected Products

Alt Linux

Debian

Linux Kernel

Red Hat

Red Os

Suse

References · 96

• https://zerodayinitiative.com/advisories/ZDI-CAN-19399 · Patch
• https://zerodayinitiative.com/advisories/ZDI-23-1489 · Security Note
• https://access.redhat.com/errata/RHSA-2024:0439 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2023-39191 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-39191 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/703523 · Security Note
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2023-39191 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-39191 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2023-39191 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2024:0381 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=2226783 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:1039-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-39191 · Security Note
• https://access.redhat.com/errata/RHSA-2023:6583 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2024:0448 · Vendor Advisory