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CVE-2021-38160

Public on 2021-08-07
Modified on 2023-01-30
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.

Severity
Important
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CVSS v3 Base Score
7.8
See breakdown
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2021-09-30 19:25 ALAS-2021-1539
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-01-20 23:43 ALAS2KERNEL-5.10-2022-004
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-01-20 19:03 ALAS2KERNEL-5.4-2022-006

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C
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 CVSSv2 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H