CVE-2021-3997

A flaw was found in systemd. An uncontrolled recursion in systemd-tmpfiles may lead to a denial of service at boot time when too many nested directories are created in /tmp.

References

Affected packages

Git / github.com/systemd/systemd

Affected ranges

Type: GIT
Repo: https://github.com/systemd/systemd
Events: Introduced

1742aae2aa8cd33897250d6fcfbe10928e43eb2f

Fixed

617c67a039b25139e5516aa48931c7024c6f8dc5

Database specific

vanir_signatures

[
    {
        "deprecated": false,
        "source": "https://github.com/systemd/systemd/commit/617c67a039b25139e5516aa48931c7024c6f8dc5",
        "id": "CVE-2021-3997-0191928f",
        "target": {
            "file": "src/core/bpf-lsm.c",
            "function": "lsm_bpf_supported"
        },
        "digest": {
            "function_hash": "185979649040454291352028384744579284254",
            "length": 1126.0
        },
        "signature_type": "Function",
        "signature_version": "v1"
    },
    {
        "deprecated": false,
        "source": "https://github.com/systemd/systemd/commit/617c67a039b25139e5516aa48931c7024c6f8dc5",
        "id": "CVE-2021-3997-0291008d",
        "target": {
            "file": "src/core/bpf-lsm.c"
        },
        "digest": {
            "line_hashes": [
                "232824255401767527882159588300249583897",
                "139541591999350747288877596287582325781",
                "48873728193042033972757482948885216072",
                "279905846686783546131062549597754248093",
                "40943845109007403552630436406116122814",
                "179031166932765664448266696954928194792"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line",
        "signature_version": "v1"
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-3997.json"