CVE Vulnerabilities

CVE-2018-16452

Uncontrolled Recursion

Published: Oct 03, 2019 | Modified: Nov 07, 2023
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
7.5 LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM

The SMB parser in tcpdump before 4.9.3 has stack exhaustion in smbutil.c:smb_fdata() via recursion.

Weakness

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

Affected Software

Name Vendor Start Version End Version
Tcpdump Tcpdump * 4.9.3 (excluding)
Red Hat Enterprise Linux 8 RedHat tcpdump-14:4.9.3-1.el8 *
Tcpdump Ubuntu bionic *
Tcpdump Ubuntu disco *
Tcpdump Ubuntu trusty *
Tcpdump Ubuntu trusty/esm *
Tcpdump Ubuntu upstream *
Tcpdump Ubuntu xenial *

Potential Mitigations

References