Vulnerability identifier: #VU87591
Vulnerability risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-399
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
OpenBSD
Operating systems & Components /
Operating system
Vendor: OpenBSD
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to vmm(4) does not restore GDTR limits properly on Intel (VMX) CPUs within the vcpu_run_vmx() function in sys/arch/amd64/amd64/vmm_machdep.c. A local user can perform a denial of service (DoS) attack.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
OpenBSD: 7.4
External links
http://www.openbsd.org/errata74.html#014
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.