CVE-2020-35508

Medium

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.

Package Linux Kernel
Published 2021-03-26
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

4.5

out of 10
Medium
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

Weakness type

CWE-665

CVE-2020-35508 is classified as CWE-665

See CWE-665 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2020-35508 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2020-35508?

    CVE-2020-35508 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.5 out of 10 . CVE-2020-35508 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2020-35508?

    CVE-2020-35508 has a CVSS score of 4.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L .

  • Is there a patch available for CVE-2020-35508?

    No patch is currently available for CVE-2020-35508. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2020-35508 actively exploited?

    No — CVE-2020-35508 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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