#VU67511 Use-after-free in Linux kernel - CVE-2020-27784

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Main Vulnerability Database Vulnerabilities #VU67511

#VU67511 Use-after-free in Linux kernel - CVE-2020-27784

Published: September 20, 2022


Vulnerability identifier: #VU67511
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-27784
CWE-ID: CWE-416
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error when accessing a deallocated instance in printer_ioctl(). A local user can trigger a use-after-free error and crash the kernel.



Remediation

Install updates from vendor's website.

External links