Skip to main content
No exploitation reportedFix available

CVE-2018-18409

No exploitation reported by the sources we read.

  • Published2018-10-17
  • WeaknessCWE-125

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A stack-based buffer over-read exists in setbit() at iptree.h of TCPFLOW 1.5.0, due to received incorrect values causing incorrect computation, leading to denial of service during an address_histogram call or a get_histogram call.

Timeline

dates in UTC
  1. 2018-10-1704:29CVE publishedNVD

Versions per branch

NVD
Canonical ubuntu linux
BranchAffectedFixed in
16.4= 16.04no fix published
18.4= 18.04no fix published
18.10= 18.10no fix published
Fedoraproject fedora
BranchAffectedFixed in
28.x= 28no fix published
29.x= 29no fix published
Digitalcorpora tcpflow
BranchAffectedFixed in
1.5= 1.5.0no fix published

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • tcpflowUbuntu:Pro:14.04:LTSall versions · fixed in 1.4.4+repack1-2ubuntu0.1~esm1
  • tcpflowUbuntu:18.04:LTSall versions · fixed in 1.4.5+repack1-4ubuntu0.18.04.1
  • tcpflowUbuntu:16.04:LTSall versions · fixed in 1.4.5+repack1-1ubuntu0.1
  • tcpflowMageia:6all versions · fixed in 1.5.2-1.mga6
  • tcpflowDebian:14all versions · fixed in 1.5.2+repack1-1
  • tcpflowDebian:13all versions · fixed in 1.5.2+repack1-1
  • tcpflowDebian:12all versions · fixed in 1.5.2+repack1-1
  • tcpflowCleanStartall versions · fixed in 1.5.0-r1

18 more package ranges on OSV.dev

Vendor advisories

  • CVE-2018-18409 Red Hat Product Security

    tcpflow: stack-based buffer over-read exists in setbit() at iptree.h

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
2018-10-17
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-5xhp-rfv2-8345

Frequently asked questions

What is CVE-2018-18409?

A stack-based buffer over-read exists in setbit() at iptree.h of TCPFLOW 1.5.0, due to received incorrect values causing incorrect computation, leading to denial of service during an address_histogram call or a get_histogram call.

Is CVE-2018-18409 actively exploited?

Active exploitation of CVE-2018-18409 has not been confirmed. Its EPSS score was 1.3% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-18409?

CVE-2018-18409 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Running tcpflow? Hear about its next vulnerability

Surveillance reads the versions in your stack — a domain, a lockfile or a list — checks each CVE against the ranges its sources publish, and alerts you when one you run is exploited or enters CISA KEV. A version it cannot read stays « version not verified ».

Get alerts for this productCISA KEV additions, November 2026Search CVEs

No credit card required · No monthly cap on website lookups · 250 API requests/month

Go further

Related vulnerabilities

Same product first, then the same vendor advisory and the same publication week.

Back to CVE Database

Sources for this record