Out-of-bounds read in Tcpdump - CVE-2018-14882

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Main Vulnerability Database Vulnerabilities #VU21998

Out-of-bounds read in Tcpdump - CVE-2018-14882

Published: October 21, 2019


Vulnerability identifier: #VU21998
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-14882
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to a boundary error in the print-icmp6.c within the ICMPv6 parser in tcpdump before 4.9.3. A remote attacker can generate specially crafted data, trigger out-of-bounds read error and perform denial of service attack.


Affected software

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

How to mitigate CVE-2018-14882

Install update 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

External References

Related Security Bulletins