CVE-2020-27784

Medium

A vulnerability was found in the Linux kernel, where accessing a deallocated instance in printer_ioctl() printer_ioctl() tries to access of a printer_dev instance. However, use-after-free arises because it had been freed by gprinter_free().

Package Linux Kernel
Published 2022-09-01
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

5.5

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

Weakness type

CWE-201

CVE-2020-27784 is classified as CWE-201

See CWE-201 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2020-27784 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-2020-27784?

    CVE-2020-27784 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2020-27784 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2020-27784?

    CVE-2020-27784 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H .

  • Is there a patch available for CVE-2020-27784?

    No patch is currently available for CVE-2020-27784. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

  • Is CVE-2020-27784 actively exploited?

    No — CVE-2020-27784 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.