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Vulnerability record · CVE-2020-8037 · published 4 November 2020

CVE-2020-8037: Tcpdump allocation without limits vulnerability

Tcpdump · Tcpdump

The ppp decapsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory.

7.5 CVSS 3.1 High EPSS 3.1% · top 12.7% CWE-770 · Allocation without limits
7.5CVSS 3.1 base score, v2 5.0
3.1%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
16References
17 Jun 2026Last modified by NVD

Description

The ppp decapsulator in tcpdump 4.9.3 can be convinced to allocate a large amount of memory.

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

Affected products

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

References

LinkTags
http://seclists.org/fulldisclosure/2021/Apr/51 Mailing ListThird Party Advisory
https://github.com/the-tcpdump-group/tcpdump/commit/32027e199368dad9508965aae8cd8de5b6ab5231 PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00018.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F2MX34MJIUJQGL6CMEPLTKF
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWDBONZVLC6BAOR2KM376DJ
https://support.apple.com/kb/HT212325 Third Party Advisory
https://support.apple.com/kb/HT212326 Third Party Advisory
https://support.apple.com/kb/HT212327 Third Party Advisory
http://seclists.org/fulldisclosure/2021/Apr/51 Mailing ListThird Party Advisory
https://github.com/the-tcpdump-group/tcpdump/commit/32027e199368dad9508965aae8cd8de5b6ab5231 PatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/11/msg00018.html Mailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/F2MX34MJIUJQGL6CMEPLTKF
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LWDBONZVLC6BAOR2KM376DJ
https://support.apple.com/kb/HT212325 Third Party Advisory
https://support.apple.com/kb/HT212326 Third Party Advisory
https://support.apple.com/kb/HT212327 Third Party Advisory

Track CVE-2020-8037 inside VULONE

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2020-8037), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.