CVE-2024-40635 MEDIUM

CVE-2024-40635: containerd has an integer overflow in User ID handling

Vendor Containerd
Product containerd
Weakness CWE-190
Published March 17, 2025
Last update May 4, 2025

CVSS base score

4.6/10
Attack vector Local
Attack complexity Low
Privileges required High
User interaction None
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N

What the vulnerability does

01Description

containerd is an open-source container runtime. A bug was found in containerd prior to versions 1.6.38, 1.7.27, and 2.0.4 where containers launched with a User set as a `UID:GID` larger than the maximum 32-bit signed integer can cause an overflow condition where the container ultimately runs as root (UID 0). This could cause unexpected behavior for environments that require containers to run as a non-root user. This bug has been fixed in containerd 1.6.38, 1.7.27, and 2.04. As a workaround, ensure that only trusted images are used and that only trusted users have permissions to import images.

Key dates

02Disclosure timeline

March 17, 2025 CVE published
May 4, 2025 Record updated