CVE-2020-27830 Information

Description

A vulnerability was found in Linux Kernel where in the spk_ttyio_receive_buf2() function it would dereference spk_ttyio_synth without checking whether it is NULL or not and may lead to a NULL-ptr deref crash.

CVSS Vector

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

Reference

https://bugzilla.redhat.com/show_bug.cgi?id=1919900 http://www.openwall.com/lists/oss-security/2020/12/08/1 http://www.openwall.com/lists/oss-security/2020/12/08/4 https://www.debian.org/security/2021/dsa-4843 https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html https://security.netapp.com/advisory/ntap-20210625-0004/

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5