CVE-2020-28097 Information

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.

CVSS Vector

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

Reference

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/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.9