#VU85991 Security features bypass in runc - CVE-2024-21626
Published: February 1, 2024 / Updated: April 19, 2024
Vulnerability identifier: #VU85991
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber
CVE-ID: CVE-2024-21626
CWE-ID: CWE-254
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
runc
runc
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to an internal file descriptor leak that can cause a newly-spawned container process (from runc exec) to have a working directory in the host filesystem namespace or a malicious image to allow a container process to gain access to the host filesystem through runc run. A remote attacker can trick the victim into loading a malicious image to bypass sandbox restrictions and execute arbitrary code on the host OS.
Remediation
Install updates from vendor's website.