VULNERABILITY INTELLIGENCE

CVE-2020-35508

CVSS score4.5 MEDIUM
EPSS probability0.22%
CISA KEVNot currently listed
Published2021-03-26
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

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.

Weakness classification

  • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
  • CWE-665: Improper Initialization

Primary references