CVE-2020-35508

moderate-risk

Published 2021-03-26

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.

Do I need to act?

0.05% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.5/10 Medium

LOCAL / HIGH complexity

Affected Products (20)

Linux Kernel

Enterprise Linux

A700S Firmware

Brocade Fabric Operating System Firmware

Fas8300 Firmware

Fas8700 Firmware

Aff A400 Firmware

H300S Firmware

H500S Firmware

H700S Firmware

H300E Firmware

H500E Firmware

H700E Firmware

H410S Firmware

H410C Firmware

Affected Vendors

Redhat Linux Netapp

References (6)

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

Patch https://github.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a94...

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

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

Patch https://github.com/torvalds/linux/commit/b4e00444cab4c3f3fec876dc0cccc8cbb0d1a94...

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

/ 100

moderate-risk

Severity 12/34 · Low

Exploitability 0/34 · Minimal

Exposure 21/34 · High