CVE-2020-28097

medium

Description

The vgacon subsystem in the Linux kernel before 5.8.10 mishandles software scrollback. There is a vgacon_scrolldelta out-of-bounds read, aka CID-973c096f6a85.

References

https://github.com/torvalds/linux/commit/973c096f6a85e5b5f2a295126ba6928d9a6afd45

https://seclists.org/oss-sec/2020/q3/176

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.10

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=973c096f6a85e5b5f2a295126ba6928d9a6afd45

https://security.netapp.com/advisory/ntap-20210805-0001/

Details

Source: MITRE

Published: 2021-06-24

Updated: 2022-04-06

Type: CWE-125

Risk Information

CVSS v2

Base Score: 3.6

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

Impact Score: 4.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 5.9

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

Impact Score: 5.2

Exploitability Score: 0.7

Severity: MEDIUM