Privilege escalation in runc



Published: 2022-05-12
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-29162
CWE-ID CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software
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runc
Server applications / Virtualization software

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU63090

Risk: Medium

CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-29162

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

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 - 1.1.1


CPE2.3 External links

http://github.com/opencontainers/runc/releases/tag/v1.1.2

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.



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