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Vulnerability record · CVE-2017-5342 · published 28 January 2017

CVE-2017-5342: Tcpdump memory buffer overflow vulnerability

Tcpdump · Tcpdump

In tcpdump before 4.9.0, a bug in multiple protocol parsers (Geneve, GRE, NSH, OTV, VXLAN and VXLAN GPE) could cause a buffer overflow in print-ether.c:ether_print().

9.8 CVSS 3.0 Critical EPSS 5.5% · top 7.5% CWE-119 · Memory buffer overflow
9.8CVSS 3.0 base score, v2 7.5
5.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
12References
17 Jun 2026Last modified by NVD

Description

In tcpdump before 4.9.0, a bug in multiple protocol parsers (Geneve, GRE, NSH, OTV, VXLAN and VXLAN GPE) could cause a buffer overflow in print-ether.c:ether_print().

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.debian.org/security/2017/dsa-3775
http://www.securityfocus.com/bid/95852 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037755
https://access.redhat.com/errata/RHSA-2017:1871
https://security.gentoo.org/glsa/201702-30
https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1494526.html
http://www.debian.org/security/2017/dsa-3775
http://www.securityfocus.com/bid/95852 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1037755
https://access.redhat.com/errata/RHSA-2017:1871
https://security.gentoo.org/glsa/201702-30
https://www.mail-archive.com/debian-bugs-dist%40lists.debian.org/msg1494526.html

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2018-10103Tcpdump improper input validation vulnerabilitytcpdump before 4.9.3 mishandles the printing of SMB data (issue 1 of 2).EPSS 4.1%9.8CVE-2018-10105Tcpdump improper input validation vulnerabilitytcpdump before 4.9.3 mishandles the printing of SMB data (issue 2 of 2).EPSS 3.9%9.8CVE-2017-13049Tcpdump out-of-bounds read vulnerabilityThe Rx protocol parser in tcpdump before 4.9.2 has a buffer over-read in print-rx.c:ubik_print().EPSS 3.4%9.8CVE-2017-13050Tcpdump out-of-bounds read vulnerabilityThe RPKI-Router parser in tcpdump before 4.9.2 has a buffer over-read in print-rpki-rtr.c:rpki_rtr_pdu_print().EPSS 4.6%9.8CVE-2017-13051Tcpdump out-of-bounds read vulnerabilityThe RSVP parser in tcpdump before 4.9.2 has a buffer over-read in print-rsvp.c:rsvp_obj_print().EPSS 3.7%9.8CVE-2017-13052Tcpdump out-of-bounds read vulnerabilityThe CFM parser in tcpdump before 4.9.2 has a buffer over-read in print-cfm.c:cfm_print().EPSS 3.4%9.8CVE-2017-13053Tcpdump out-of-bounds read vulnerabilityThe BGP parser in tcpdump before 4.9.2 has a buffer over-read in print-bgp.c:decode_rt_routing_info().EPSS 3.2%9.8CVE-2017-13054Tcpdump out-of-bounds read vulnerabilityThe LLDP parser in tcpdump before 4.9.2 has a buffer over-read in print-lldp.c:lldp_private_8023_print().EPSS 3.2%

Source: NIST National Vulnerability Database (record CVE-2017-5342), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.