CVE-2020-8648

high

Description

There is a use-after-free vulnerability in the Linux kernel through 5.5.2 in the n_tty_receive_buf_common function in drivers/tty/n_tty.c.

References

https://bugzilla.kernel.org/show_bug.cgi?id=206361

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html

https://usn.ubuntu.com/4344-1/

https://usn.ubuntu.com/4345-1/

https://usn.ubuntu.com/4342-1/

https://usn.ubuntu.com/4346-1/

https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html

https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html

https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html

https://www.debian.org/security/2020/dsa-4698

https://security.netapp.com/advisory/ntap-20200924-0004/

Details

Source: MITRE

Published: 2020-02-06

Updated: 2022-07-28

Type: CWE-416

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: 7.1

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

Impact Score: 5.2

Exploitability Score: 1.8

Severity: HIGH