NULL pointer dereference in Tcpreplay - CVE-2023-27786

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Main Vulnerability Database Vulnerabilities #VU79732

NULL pointer dereference in Tcpreplay - CVE-2023-27786

Published: August 20, 2023


Vulnerability identifier: #VU79732
CSH Severity: Medium
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-2023-27786
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 a NULL pointer dereference error in TCPprep. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


Affected software

Tcpreplay
Fedora
Ubuntu
tcpreplay (Ubuntu package)
tcpreplay

How to mitigate CVE-2023-27786

Install updates from vendor's website.

Tcpreplay - update to 4.4.4
tcpreplay (Ubuntu package) - update to Ubuntu Pro
tcpreplay - addressed in versions 4.4.3-3.el7, 4.4.3-3.el8, 4.4.3-3.el9, 4.4.3-3.fc36, 4.4.3-3.fc37, 4.4.3-3.fc38

External References

Related Security Bulletins