CVE-2017-12997

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Source
https://cve.org/CVERecord?id=CVE-2017-12997
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-12997.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2017-12997
Downstream
Related
Published
2017-09-14T06:29:00Z
Modified
2026-07-08T12:06:18Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

The LLDP parser in tcpdump before 4.9.2 could enter an infinite loop due to a bug in print-lldp.c:lldp_private_8021_print().

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
34cec721d39c76be1e0a600829a7b17bdfb832b6
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:tcpdump:tcpdump:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "4.9.1"
        }
    ],
    "source":  [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

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-2017-12997.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "function_hash":  "1885717028255664028988507052205420652",
            "length":  5871
        },
        "id":  "CVE-2017-12997-58ea8a65",
        "signature_type":  "Function",
        "signature_version":  "v1",
        "source":  "https://github.com/the-tcpdump-group/tcpdump/commit/34cec721d39c76be1e0a600829a7b17bdfb832b6",
        "target":  {
            "file":  "print-lldp.c",
            "function":  "lldp_private_8021_print"
        }
    },
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
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            ],
            "threshold":  0.9
        },
        "id":  "CVE-2017-12997-a06a8984",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/the-tcpdump-group/tcpdump/commit/34cec721d39c76be1e0a600829a7b17bdfb832b6",
        "target":  {
            "file":  "print-lldp.c"
        }
    }
]
vanir_signatures_modified 
"2026-07-08T12:06:18Z"