CVE-2020-8648 Information

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.

CVSS Vector

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

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html https://bugzilla.kernel.org/show_bug.cgi?id=206361 https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html https://security.netapp.com/advisory/ntap-20200924-0004/ https://usn.ubuntu.com/4342-1/ https://usn.ubuntu.com/4344-1/ https://usn.ubuntu.com/4345-1/ https://usn.ubuntu.com/4346-1/ https://www.debian.org/security/2020/dsa-4698

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

7.1