Infinite loop in Tcpdump - CVE-2018-16452

Vulnerability identifier: #VU22022

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-16452

CWE-ID: CWE-835

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop in the smbutil.c:smb_fdata() function within the SMB parser. A remote attacker can consume all available system resources and cause denial of service conditions.

Tcpdump
IBM VIOS
OpenShift Data Foundation (formerly OpenShift Container Storage)
tcpdump (Debian package)
tcpdump (Alpine package)
tcpdump (Red Hat package)
tcpdump
IBM AIX
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Oracle Solaris
Slackware Linux
Opensuse
Fedora

Install updates from vendor's website.

Tcpdump - update to 4.9.3
tcpdump (Debian package) - addressed in versions 4.9.3-1~deb9u1, 4.9.3-1~deb10u1
tcpdump (Alpine package) - update to 4.9.3-r0
tcpdump (Red Hat package) - update to 4.9.3-1.el8
tcpdump - addressed in versions 4.9.3-1.fc29, 4.9.3-1.fc30, 4.9.3-1.fc31

• https://github.com/the-tcpdump-group/tcpdump/blob/tcpdump-4.9/CHANGES
• https://github.com/the-tcpdump-group/tcpdump/commit/24182d959f661327525a20d9a94c98a8ec016778
• https://lists.debian.org/debian-lts-announce/2019/10/msg00015.html

• OpenSUSE Linux update for tcpdump
• OpenSUSE Linux update for tcpdump
• Multiple vulnerabilities in Tcpdump
• Debian update for tcpdump
• Slackware Linux update for tcpdump
• IBM AIX update for tcpdump
• Oracle Solaris update for third party packages
• Infinite loop in tcpdump (Alpine package)
• Red Hat Enterprise Linux 8 update for tcpdump
• Multiple vulnerabilities in Red Hat OpenShift Container Storage
• Fedora 31 update for tcpdump
• Fedora 30 update for tcpdump
• Fedora 29 update for tcpdump