#VU83383 Improper handling of exceptional conditions in Linux kernel - CVE-2023-5090

Vulnerability identifier: #VU83383

Vulnerability risk: Low

CVSSv4.0: 4.3 [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-2023-5090

CWE-ID: CWE-755

Exploitation vector: Local

Exploit availability: No

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

Vendor: Linux Foundation

Description

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

The vulnerability exists due to improper handling of errors within the svm_set_x2apic_msr_interception() function in KVM. A local user can send specially crafted input and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 6.6 rc1 - 6.6 rc6

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External links
https://access.redhat.com/security/cve/CVE-2023-5090
https://bugzilla.redhat.com/show_bug.cgi?id=2248122

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?