#VU85580 Permissions, Privileges, and Access Controls in CRI-O - CVE-2023-6476

Vulnerability identifier: #VU85580

Vulnerability risk: Medium

CVSSv4.0: 4.9 [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-2023-6476

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CRI-O
Server applications / Virtualization software

Vendor: CRI-O

Description

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

The vulnerability exists due to unchecked access to an experimental annotation. A remote user can use the cgroupv2 and perform a denial of service (DoS) attack by consuming all available memory resources.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CRI-O: 1.27.0 - 1.27.2, 1.28.0 - 1.28.2, 1.29.0

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External links
https://github.com/cri-o/cri-o/security/advisories/GHSA-p4rx-7wvg-fwrc

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.