CVE-2017-12997

9.8 CRITICAL
Published: September 14, 2017 Modified: December 04, 2025

Description

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().

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.tcpdump.org/tcpdump-changes.txt
Source: cve@mitre.org
Vendor Advisory
https://github.com/the-tcpdump-group/tcpdump/commit/34cec721d39c76be1e0a600829a7b17bdfb832b6
Source: cve@mitre.org
Issue Tracking Patch Third Party Advisory
http://www.debian.org/security/2017/dsa-3971
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securityfocus.com/bid/100914
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id/1039307
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.tcpdump.org/tcpdump-changes.txt
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
https://access.redhat.com/errata/RHEA-2018:0705
Source: af854a3a-2127-422b-91ae-364da2661108
https://github.com/the-tcpdump-group/tcpdump/commit/34cec721d39c76be1e0a600829a7b17bdfb832b6
Source: af854a3a-2127-422b-91ae-364da2661108
Issue Tracking Patch Third Party Advisory
https://security.gentoo.org/glsa/201709-23
Source: af854a3a-2127-422b-91ae-364da2661108
https://support.apple.com/HT208221
Source: af854a3a-2127-422b-91ae-364da2661108

16 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
1.5%
80th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

tcpdump