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CVE-2023-1838

Public on 2023-04-05
Modified on 2024-01-12
Description

A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the system, and could even lead to a kernel information leak problem.

Severity
Important
See what this means
CVSS v3 Base Score
7.1
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2023-04-27 16:19 ALAS-2023-1735
Amazon Linux 2 - Core kernel 2023-04-27 18:37 ALAS2-2023-2027
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-06-04 00:05 ALAS2KERNEL-5.10-2022-014
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-06-29 23:20 ALAS2KERNEL-5.15-2023-023
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-06-04 00:07 ALAS2KERNEL-5.4-2022-026

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
NVD CVSSv3 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H