Out-of-bounds read in Tcpreplay - CVE-2018-18407

 

Out-of-bounds read in Tcpreplay - CVE-2018-18407

Published: October 17, 2018 / Updated: June 1, 2021


Vulnerability identifier: #VU36496
CSH Severity: Medium
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-18407
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

A heap-based buffer over-read was discovered in the tcpreplay-edit binary of Tcpreplay 4.3.0 beta1, during the incremental checksum operation. The issue gets triggered in the function csum_replace4() in incremental_checksum.h, causing a denial of service.


Affected software

Tcpreplay
Fedora
tcpreplay

How to mitigate CVE-2018-18407

Install update from vendor's website.

Tcpreplay - update to 4.3.0
tcpreplay - addressed in versions 4.3.1-1.el7, 4.3.1-1.fc28, 4.3.1-1.fc29, 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

External References

Related Security Bulletins