CVE-2017-12893

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2017-12893
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12893.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2017-12893
Downstream
DEBIAN (1)
MGASA (1)
openSUSE (1)
RHEA (1)
SUSE (2)
UBUNTU (1)
Related
openSUSE (1)
SUSE (2)
Published
2017-09-14T06:29:00Z
Modified
2026-10-24T14:02:19Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

The SMB/CIFS parser in tcpdump before 4.9.2 has a buffer over-read in smbutil.c:name_len().

Database specific 
{
    "unresolved_ranges": [
        {
            "cpes": [
                "cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "range": [
                        {
                            "last_affected": "4.9.1"
                        }
                    ],
                    "source": "CPE_RANGE"
                }
            ],
            "vendor_product": "tcpdump:tcpdump"
        }
    ]
}
References

Affected packages

Git / github.com/the-tcpdump-group/tcpdump

Affected ranges

Type
GIT
Repo
https://github.com/the-tcpdump-group/tcpdump
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
993a67c8e648bc8b19881e29a60f41273cfbee7b
Fixed
6f5ba2b651cd9d4b7fa8ee5c4f94460645877c45
Database specific
Show details 
{
    "extracted_events": [
        {
            "cpe": "cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*",
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "last_affected": "4.9.1"
                }
            ],
            "source": "CPE_RANGE"
        },
        {
            "range": [
                {
                    "fixed": "6f5ba2b651cd9d4b7fa8ee5c4f94460645877c45"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

tcpdump-3.*
tcpdump-3.5.1
tcpdump-3.6.1
tcpdump-3.7.1
tcpdump-3.8-bp
tcpdump-4.*
tcpdump-4.5.0
tcpdump-4.6.0
tcpdump-4.6.0-bp
tcpdump-4.7.0-bp
tcpdump-4.9.0
tcpdump-4.9.0-bp
tcpdump-4.9.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12893.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "89528569757786183979898013357952063915",
                "95936024836004477637226364277217972178",
                "256302665990413636940166956872632110133",
                "59029088198345276848708742558307582191"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2017-12893-18713554",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/the-tcpdump-group/tcpdump/commit/6f5ba2b651cd9d4b7fa8ee5c4f94460645877c45",
        "target": {
            "file": "smbutil.c"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "254543148971284822015752960748193495829",
            "length": 472
        },
        "id": "CVE-2017-12893-219e922b",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/the-tcpdump-group/tcpdump/commit/6f5ba2b651cd9d4b7fa8ee5c4f94460645877c45",
        "target": {
            "file": "smbutil.c",
            "function": "name_len"
        }
    }
]
vanir_signatures_modified 
"2026-10-24T14:02:19Z"