CVE-2021-47186

high

Description

In the Linux kernel, the following vulnerability has been resolved: tipc: check for null after calling kmemdup kmemdup can return a null pointer so need to check for it, otherwise the null key will be dereferenced later in tipc_crypto_key_xmit as can be seen in the trace [1]. [1] https://syzkaller.appspot.com/bug?id=bca180abb29567b189efdbdb34cbf7ba851c2a58

References

https://git.kernel.org/stable/c/a7d91625863d4ffed63b993b5e6dc1298b6430c9

https://git.kernel.org/stable/c/9404c4145542c23019a80ab1bb2ecf73cd057b10

https://git.kernel.org/stable/c/3e6db079751afd527bf3db32314ae938dc571916

Details

Source: Mitre, NVD

Published: 2024-04-10

Updated: 2024-07-08

Risk Information

CVSS v2

Base Score: 4.6

Vector: CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High