containerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overflow (and resultant out-of-bounds heap access) for index_bytes, if an untrusted overlaybd blob from a registry is used in a scenario with multiple over…

{
                    "defaultStatus": "unknown",
                    "product": "overlaybd",
                    "repo": "https://github.com/containerd/overlaybd",
                    "vendor": "containerd",
                    "versions": [
                        {
                            "lessThanOrEqual": "1.0.18",
                            "status": "affected",
                            "version": "0",
                            "versionType": "semver"
                        }
                    ]
                }