CVE-2023-1838
Public on 2023-04-05
Modified on 2024-04-22
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
CVSS v3 Base Score
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 |