CVE-2020-27830medium
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.
References
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
Details
Source: MITRE
Published: 2021-05-13
Updated: 2021-09-07
Type: CWE-476
Risk Information
CVSS v2
Base Score: 2.1
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P
Impact Score: 2.9
Exploitability Score: 3.9
Severity: LOW
CVSS v3
Base Score: 5.5
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM