#VU63584 Improper Resource Shutdown or Release in Linux kernel - CVE-2021-28715

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Main Vulnerability Database Vulnerabilities #VU63584

#VU63584 Improper Resource Shutdown or Release in Linux kernel - CVE-2021-28715

Published: May 24, 2022


Vulnerability identifier: #VU63584
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-28715
CWE-ID: CWE-404
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Linux kernel
Software vendor:
Linux Foundation

Description

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

The vulnerability exists due to incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is ready to process them. A remote user can use a UDP connection on a fast interface to trigger resource exhaustion and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links