Vulnerability identifier: #VU64261

Vulnerability risk: Low

CVSSv3.1: 5.4 [CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1789

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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

The vulnerability exists due to NULL pointer dereference in kvm_mmu_invpcid_gva. A local attacker can trigger vulnerability to perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

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External links
http://francozappa.github.io/about-bias/
http://kb.cert.org/vuls/id/647177/
http://bugzilla.redhat.com/show_bug.cgi?id=2090723

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Q & A

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.