#VU63090 Permissions, Privileges, and Access Controls in runc - CVE-2022-29162

Vulnerability identifier: #VU63090

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-29162

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
runc
Server applications / Virtualization software

Vendor: Linux Foundation

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to containers are incorrectly started with non-empty inheritable Linux process capabilities, which leads to security restrictions bypass and privilege escalation.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

runc: 1.1.0 rc.1 - 1.1.1

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External links
https://github.com/opencontainers/runc/releases/tag/v1.1.2

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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