CVE-2018-18408

Publication date 17 October 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A use-after-free was discovered in the tcpbridge binary of Tcpreplay 4.3.0 beta1. The issue gets triggered in the function post_args() at tcpbridge.c, causing a denial of service or possibly unspecified other impact.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
tcpreplay	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Ignored end of life
	20.04 LTS focal	Not affected
	19.10 eoan	Ignored end of life
	19.04 disco	Not affected
	18.10 cosmic	Ignored end of life
	18.04 LTS bionic	Fixed 4.2.6-1ubuntu0.1~esm2
	16.04 LTS xenial	Fixed 3.4.4-2+deb8u1ubuntu0.1~esm2
	14.04 LTS trusty	Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
tcpreplay	Upstream: https://github.com/appneta/tcpreplay/pull/497/commits/59dc76a1d641b1a6b22fd7cd409bee6e0a015616

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-5205-1
Tcpreplay vulnerabilities
4 October 2022