CVE Vulnerability

CVE-2020-27830

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.

2.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1919900 Issue Tracking Patch
http://www.openwall.com/lists/oss-security/2020/12/08/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/12/08/4 Mailing List Third Party Advisory
https://www.debian.org/security/2021/dsa-4843 Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/02/msg00018.html Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20210625-0004/ Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Information

Published : 2021-05-13 03:15

Updated : 2021-09-07 09:59

NVD link : CVE-2020-27830

Mitre link : CVE-2020-27830

Products Affected
No products.
CWE
CWE-476