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Vulnerability record · CVE-2019-1010220 · published 22 July 2019

CVE-2019-1010220: Tcpdump out-of-bounds read vulnerability

Tcpdump · Tcpdump

tcpdump.org tcpdump 4.9.2 is affected by: CWE-126: Buffer Over-read. The impact is: May expose Saved Frame Pointer, Return Address etc. on stack. The component is: line 234: "ND_PRINT((ndo, "%s", buf));", in function named "print_prefix", in "print-hncp.c". The attack vector is: The victim must open a specially crafted pcap file.

3.3 CVSS 3.0 Low EPSS 1.3% · top 29.5% CWE-126 · CWE-126CWE-125 · Out-of-bounds read
3.3CVSS 3.0 base score, v2 4.3
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
22References
17 Jun 2026Last modified by NVD

Description

tcpdump.org tcpdump 4.9.2 is affected by: CWE-126: Buffer Over-read. The impact is: May expose Saved Frame Pointer, Return Address etc. on stack. The component is: line 234: "ND_PRINT((ndo, "%s", buf));", in function named "print_prefix", in "print-hncp.c". The attack vector is: The victim must open a specially crafted pcap file.

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

Affected products

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

References

LinkTags
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00065.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00050.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00053.html
https://github.com/the-tcpdump-group/tcpdump/blob/master/print-hncp.c PatchThird Party Advisory
https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9.2/print-hncp.c PatchThird Party Advisory
https://github.com/the-tcpdump-group/tcpdump/commits/master/print-hncp.c PatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDX
https://usn.ubuntu.com/4252-1/
https://usn.ubuntu.com/4252-2/
http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00065.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00050.html
http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00053.html
https://github.com/the-tcpdump-group/tcpdump/blob/master/print-hncp.c PatchThird Party Advisory
https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9.2/print-hncp.c PatchThird Party Advisory
https://github.com/the-tcpdump-group/tcpdump/commits/master/print-hncp.c PatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62XY42U6HY3H2APR5EHNWCZ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FNYXF3IY2X65IOD422SA6EQ
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R2UDPOSGVJQIYC33SQBXMDX
https://usn.ubuntu.com/4252-1/
https://usn.ubuntu.com/4252-2/

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Related vulnerabilities

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

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-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-2017-13690Tcpdump out-of-bounds read vulnerabilityThe IKEv2 parser in tcpdump before 4.9.2 has a buffer over-read in print-isakmp.c, several functions.EPSS 3.4%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-2017-13688Tcpdump out-of-bounds read vulnerabilityThe OLSR parser in tcpdump before 4.9.2 has a buffer over-read in print-olsr.c:olsr_print().EPSS 3.2%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-2017-13055Tcpdump out-of-bounds read vulnerabilityThe ISO IS-IS parser in tcpdump before 4.9.2 has a buffer over-read in print-isoclns.c:isis_print_is_reach_subtlv().EPSS 3.2%9.8CVE-2017-13725Tcpdump out-of-bounds read vulnerabilityThe IPv6 routing header parser in tcpdump before 4.9.2 has a buffer over-read in print-rt6.c:rt6_print().EPSS 3.3%

Source: NIST National Vulnerability Database (record CVE-2019-1010220), CISA KEV, FIRST EPSS (scores of 2026-10-10). This page is refreshed as NVD updates the record.