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CVE-2023-6931

Public on 2023-12-19
Modified on 2024-02-02
Description

A heap out-of-bounds write vulnerability in the Linux kernel's Performance Events system component can be exploited to achieve local privilege escalation.

A perf_event's read_size can overflow, leading to an heap out-of-bounds increment or write in perf_read_group().

We recommend upgrading past commit 382c27f4ed28f803b1f1473ac2d8db0afc795a1b.

Severity
Important
See what this means
CVSS v3 Base Score
7.8
See breakdown
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2024-02-01 19:33 ALAS-2024-1912
Amazon Linux 2 - Core kernel 2024-02-01 19:57 ALAS2-2024-2443
Amazon Linux 2 - Kernel-5.10 Extra kernel 2024-01-05 21:40 ALAS2KERNEL-5.10-2024-045
Amazon Linux 2 - Kernel-5.10 Extra kernel 2024-01-19 02:20 ALAS2KERNEL-5.10-2024-047
Amazon Linux 2 - Kernel-5.15 Extra kernel 2024-01-05 21:40 ALAS2KERNEL-5.15-2024-033
Amazon Linux 2 - Kernel-5.15 Extra kernel 2024-01-19 02:20 ALAS2KERNEL-5.15-2024-035
Amazon Linux 2 - Kernel-5.4 Extra kernel 2024-01-03 23:00 ALAS2KERNEL-5.4-2024-057
Amazon Linux 2023 kernel 2024-01-19 01:31 ALAS2023-2024-488

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H