#VU55034 Uncontrolled Memory Allocation in systemd - CVE-2021-33910
Published: July 20, 2021 / Updated: July 21, 2021
Vulnerability identifier: #VU55034
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:P/U:Clear
CVE-ID: CVE-2021-33910
CWE-ID: CWE-789
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerable software:
systemd
systemd
Software vendor:
Freedesktop.org
Freedesktop.org
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to stack exhaustion within the basic/unit-name.c in systemd. A local user can crash the systemd (PID 1) and cause a kernel panic.
Remediation
Install updates from vendor's website.