CVE-2020-8793

OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a combination of an untrusted search path in makemap.c and race conditions in the offline functionality in smtpd.c.

References

Affected packages

Git / github.com/opensmtpd/opensmtpd

Affected ranges

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

0 Unknown introduced commit / All previous commits are affected

Fixed

555d2121736acdd70453b24b94c8c2996d9ab5f9

Database specific

{
    "vanir_signatures": [
        {
            "signature_type": "Function",
            "target": {
                "function": "queue_fs_envelope_create",
                "file": "smtpd/queue_fs.c"
            },
            "source": "https://github.com/opensmtpd/opensmtpd/commit/555d2121736acdd70453b24b94c8c2996d9ab5f9",
            "id": "CVE-2020-8793-7da4040d",
            "signature_version": "v1",
            "deprecated": false,
            "digest": {
                "function_hash": "196875953881991152077236116624259068501",
                "length": 852.0
            }
        },
        {
            "signature_type": "Line",
            "target": {
                "file": "smtpd/queue_fs.c"
            },
            "source": "https://github.com/opensmtpd/opensmtpd/commit/555d2121736acdd70453b24b94c8c2996d9ab5f9",
            "id": "CVE-2020-8793-8fca902c",
            "signature_version": "v1",
            "deprecated": false,
            "digest": {
                "line_hashes": [
                    "242575823212615086944252627364996250139",
                    "191066550062516158912985716223257094754",
                    "166787329513173112996708886338970170939",
                    "256753418468187729585530898156176574718",
                    "273979709428202467439049274088971250784"
                ],
                "threshold": 0.9
            }
        }
    ]
}