{"id":"CVE-2024-40635","aliases":["GHSA-265r-hfxg-fhmg","GO-2025-3528"],"url":"https://o3.security/vulnerability/CVE-2024-40635","summary":"containerd has an integer overflow in User ID handling","details":"### Impact\nA bug was found in containerd 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.\n\n### Patches\nThis bug has been fixed in the following containerd versions: \n\n* 2.0.4 (Fixed in https://github.com/containerd/containerd/commit/1a43cb6a1035441f9aca8f5666a9b3ef9e70ab20)\n* 1.7.27 (Fixed in https://github.com/containerd/containerd/commit/05044ec0a9a75232cad458027ca83437aae3f4da)\n* 1.6.38 (Fixed in https://github.com/containerd/containerd/commit/cf158e884cfe4812a6c371b59e4ea9bc4c46e51a)\n\nUsers should update to these versions to resolve the issue.\n\n### Workarounds\nEnsure that only trusted images are used and that only trusted users have permissions to import images.\n\n### Credits\nThe containerd project would like to thank [Benjamin Koltermann](https://github.com/p4ck3t0) and [emxll](https://github.com/emxll) for responsibly disclosing this issue in accordance with the [containerd security policy](https://github.com/containerd/project/blob/main/SECURITY.md).\n\n### References\n* https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-40635\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n* Open an issue in [containerd](https://github.com/containerd/containerd/issues/new/choose)\n* Email us at [security@containerd.io](mailto:security@containerd.io)\n\nTo report a security issue in containerd:\n* [Report a new vulnerability](https://github.com/containerd/containerd/security/advisories/new)\n* Email us at [security@containerd.io](mailto:security@containerd.io)","published":"2025-03-17T21:32:37.894Z","modified":"2026-10-28T02:30:20.573280896Z","cvss":{"score":4.6,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N"},"epss":{"score":0.00294,"percentile":0.22084,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/containerd/containerd/v2","fixedVersion":"2.0.4"},{"ecosystem":"Go","name":"github.com/containerd/containerd","fixedVersion":"1.7.27"},{"ecosystem":"Go","name":"github.com/containerd/containerd","fixedVersion":"1.6.38"}],"fix":{"url":"https://github.com/containerd/containerd/commit/05044ec0a9a75232cad458027ca83437aae3f4da","label":"containerd/containerd@05044ec"},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00005.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/40xxx/CVE-2024-40635.json"},{"type":"ADVISORY","url":"https://github.com/containerd/containerd/security/advisories/GHSA-265r-hfxg-fhmg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-40635"},{"type":"FIX","url":"https://github.com/containerd/containerd/commit/05044ec0a9a75232cad458027ca83437aae3f4da"},{"type":"FIX","url":"https://github.com/containerd/containerd/commit/1a43cb6a1035441f9aca8f5666a9b3ef9e70ab20"},{"type":"FIX","url":"https://github.com/containerd/containerd/commit/cf158e884cfe4812a6c371b59e4ea9bc4c46e51a"},{"type":"PACKAGE","url":"https://github.com/containerd/containerd"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:30:20.573280896Z"}}