CVE-2020-35508

medium

Description

A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.

References

https://github.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a948

https://bugzilla.redhat.com/show_bug.cgi?id=1902724

https://security.netapp.com/advisory/ntap-20210513-0006/

Details

Source: MITRE

Published: 2021-03-26

Updated: 2022-08-05

Type: CWE-362

Risk Information

CVSS v2

Base Score: 4.4

Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3

Base Score: 4.5

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

Impact Score: 3.4

Exploitability Score: 1

Severity: MEDIUM