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Vulnerability record · CVE-2020-8036 · published 4 November 2020

CVE-2020-8036: Tcpdump out-of-bounds read vulnerability

Tcpdump · Tcpdump

The tok2strbuf() function in tcpdump 4.10.0-PRE-GIT was used by the SOME/IP dissector in an unsafe way.

7.5 CVSS 3.1 High EPSS 1.5% · top 27.1% CWE-125 · Out-of-bounds read
7.5CVSS 3.1 base score, v2 5.0
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

The tok2strbuf() function in tcpdump 4.10.0-PRE-GIT was used by the SOME/IP dissector in an unsafe way.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

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

References

LinkTags
https://github.com/the-tcpdump-group/tcpdump/commit/e2256b4f2506102be2c6f7976f84f0d607c53d43 PatchThird Party Advisory
https://github.com/the-tcpdump-group/tcpdump/commit/e2256b4f2506102be2c6f7976f84f0d607c53d43 PatchThird Party Advisory

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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-2020-8036), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.