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 severity
Important
CVSS v3 Base Score
7.1
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 1 kernel 2023-04-27 ALAS-2023-1735 Fixed
Amazon Linux 2 - Core kernel 2023-04-27 ALAS2-2023-2027 Fixed
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-06-04 ALAS2KERNEL-5.10-2022-014 Fixed
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-06-29 ALAS2KERNEL-5.15-2023-023 Fixed
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-06-04 ALAS2KERNEL-5.4-2022-026 Fixed
Amazon Linux 2023 kernel Not Affected

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