PT-2017-3919 · Tcpdump+7 · Tcpdump+7

Bhargava Shastry · Published 2017-10-08 · Updated 2025-12-03 · CVE-2018-14468

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions tcpdump versions prior to 4.9.3

Description The issue is related to a buffer over-read in the FRF.16 parser, specifically in the mfr print() function within print-fr.c. This can allow a remote attacker to gain unauthorized access to information and impact its integrity and availability. Additionally, the vulnerability may cause a denial of service. The aoe print function in print-aoe.c and lookup emem in addrtoname.c are also related to a heap-based buffer over-read.

Recommendations For versions prior to 4.9.3, update to version 4.9.3 or later to resolve the issue. As a temporary workaround, consider restricting access to the mfr print() function in print-fr.c until a patch is available. Avoid using the aoe print function in print-aoe.c and lookup emem in addrtoname.c until the issue is resolved.

Fix

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2019-3120

ALT-PU-2020-3563

ALT-PU-2021-1433

BDU:2019-04772

BDU:2020-04965

BDU:2020-04969

CESA-2020_4760

CVE-2018-14468

DLA-1955-1

DSA-4547-1

MGASA-2019-0297

OPENSUSE-SU-2019:2344-1

OPENSUSE-SU-2019:2348-1

OPENSUSE-SU-2019_2344-1

OPENSUSE-SU-2019_2348-1

OPENSUSE-SU-2024:11425-1

RHSA-2020:4760

RHSA-2020_4760

RLSA-2020:4760

SUSE-SU-2019:14191-1

SUSE-SU-2019:2674-1

SUSE-SU-2019_14191-1

SUSE-SU-2020:3360-1

USN-4252-1

USN-4252-2

Affected Products

Alt Linux

Centos

Ibm Aix

Red Hat

Rocky Linux

Suse

Ubuntu

Tcpdump

References · 283

• https://github.com/the-tcpdump-group/tcpdump/commit/aa3e54f594385ce7e1e319b0c84999e51192578b · Patch
• https://usn.ubuntu.com/4252-2 · Vendor Advisory
• https://usn.ubuntu.com/4252-1 · Vendor Advisory
• https://osv.dev/vulnerability/RLSA-2020:4760 · Vendor Advisory
• https://debian.org/security/2019/dsa-4547 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-16227 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-04969 · Security Note
• https://ubuntu.com/security/CVE-2018-14463 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-16229 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-14468 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-15167 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-4547-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-14468 · Security Note
• https://ubuntu.com/security/CVE-2018-10105 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2019:2348-1 · Vendor Advisory