CVE-2017-12998

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Source
https://cve.org/CVERecord?id=CVE-2017-12998
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12998.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2017-12998
Downstream
Related
Published
2017-09-14T06:29:01.043Z
Modified
2026-03-15T22:14:22.216696Z
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 IS-IS parser in tcpdump before 4.9.2 has a buffer over-read in print-isoclns.c:isisprintextdipreach().

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
979dcefd7b259e9e233f77fe1c5312793bfd948f
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "4.9.1"
        }
    ]
}

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-2017-12998.json"
vanir_signatures 
[
    {
        "signature_version": "v1",
        "target": {
            "file": "print-isoclns.c",
            "function": "isis_print_extd_ip_reach"
        },
        "source": "https://github.com/the-tcpdump-group/tcpdump/commit/979dcefd7b259e9e233f77fe1c5312793bfd948f",
        "deprecated": false,
        "digest": {
            "function_hash": "4700251838482651931333855815825044859",
            "length": 2097.0
        },
        "id": "CVE-2017-12998-3029c6d8",
        "signature_type": "Function"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "print-isoclns.c"
        },
        "source": "https://github.com/the-tcpdump-group/tcpdump/commit/979dcefd7b259e9e233f77fe1c5312793bfd948f",
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "316813098404573189331629809169371758446",
                "35480589520905794696450125076201941446",
                "64094114878927935827241812548677571668",
                "129605050368975718814600418391387225143"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2017-12998-52adde6e",
        "signature_type": "Line"
    }
]