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.
:information_source: This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.
CVE-2020-35508 - Medium Severity Vulnerability
Vulnerable Library - linuxlinux-4.1.52
The Linux Kernel
Library home page: https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/?wsslib=linux
Found in HEAD commit: 32145daf0c96b012284199f23418243e0168269f
Found in base branch: master
Vulnerable Source Files (1)
/kernel/fork.c
Vulnerability Details
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.
Publish Date: 2021-03-26
URL: CVE-2020-35508
CVSS 3 Score Details (4.5)
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Local - Attack Complexity: High - Privileges Required: Low - User Interaction: None - Scope: Unchanged - Impact Metrics: - Confidentiality Impact: Low - Integrity Impact: Low - Availability Impact: Low
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: https://www.linuxkernelcves.com/cves/CVE-2020-35508
Release Date: 2021-03-26
Fix Resolution: v4.4.242, v4.9.242, v4.14.205, v4.19.156, v5.4.76, v5.9.7, v5.10-rc3
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