NULL pointer dereference in Tcpreplay - CVE-2019-8377

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Main Vulnerability Database Vulnerabilities #VU17826

NULL pointer dereference in Tcpreplay - CVE-2019-8377

Published: February 21, 2019 / Updated: June 1, 2021


Vulnerability identifier: #VU17826
CSH Severity: Low
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2019-8377
CWE-ID: CWE-476
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 NULL pointer dereference condition that exists in the get_ipv6_l4proto()function, as defined in the get.c source code file. A remote attacker can send a specially crafted packet capture (pcap) file to the tcpreplay-edit binary, trigger a segmentation fault and cause a DoS condition.


Affected software

Tcpreplay
Arch Linux
Fedora
tcpreplay (Alpine package)
tcpreplay

How to mitigate CVE-2019-8377

Install update from vendor's website.

Tcpreplay - update to 4.3.2
tcpreplay (Alpine package) - update to 4.3.3-r0
tcpreplay - addressed in versions 4.3.2-1.el6, 4.3.2-1.el7, 4.3.2-1.fc28, 4.3.2-1.fc29, 4.3.2-1.fc30, 4.3.3-1.el6, 4.3.3-1.el7, 4.3.3-1.el8, 4.3.3-1.fc31, 4.3.3-1.fc32

External References

Related Security Bulletins