Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2023-6931

Severity CVSS v4.0:
Pending analysis
Type:
CWE-787 Out-of-bounds Write
Publication date:
19/12/2023
Last modified:
13/02/2025

Description

A heap out-of-bounds write vulnerability in the Linux kernel&amp;#39;s Performance Events system component can be exploited to achieve local privilege escalation.<br /> <br /> A perf_event&amp;#39;s read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group().<br /> <br /> We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x
7.80
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.3 (including) 6.7 (excluding)
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools