CVE-2021-38160

high

Description

** DISPUTED ** In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE: the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the length validation was added solely for robustness in the face of anomalous host OS behavior.

References

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4

https://github.com/torvalds/linux/commit/d00d8da5869a2608e97cfede094dfc5e11462a46

https://access.redhat.com/security/cve/cve-2021-38160

https://security.netapp.com/advisory/ntap-20210902-0010/

https://www.debian.org/security/2021/dsa-4978

https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html

https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html

Details

Source: MITRE

Published: 2021-08-07

Updated: 2022-01-01

Type: CWE-120

Risk Information

CVSS v2

Base Score: 7.2

Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH