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No exploitation reportedFix available

CVE-2018-20178

No exploitation reported by the sources we read.

  • Published2019-03-15
  • 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

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in the function process_demand_active() that results in a Denial of Service (segfault).

Timeline

dates in UTC
  1. 2019-03-1518:29CVE publishedNVD

Versions per branch

NVD
Rdesktop
BranchAffectedFixed in
1.8≤ 1.8.3no fix published
Debian debian linux
BranchAffectedFixed in
8.0= 8.0no fix published
9.0= 9.0no 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

  • rdesktopUbuntu:18.04:LTSall versions · no fixed version listed
  • rdesktopUbuntu:16.04:LTSall versions · no fixed version listed
  • rdesktopSUSE:Package Hub 15 SP1all versions · fixed in 1.8.6-bp151.2.3.1
  • rdesktopopenSUSE:Tumbleweedall versions · fixed in 1.9.0-4.6
  • rdesktopopenSUSE:Leap 15.1all versions · fixed in 1.8.6-bp151.2.3.1
  • rdesktopMageia:6all versions · fixed in 1.8.4-1.mga6
  • rdesktopDebian:14all versions · fixed in 1.8.4-1
  • rdesktopDebian:13all versions · fixed in 1.8.4-1

19 more package ranges on OSV.dev

Vendor advisories

  • CVE-2018-20178 Red Hat Product Security3 known affected

    rdesktop: Denial of Service in process_demand_active

    rdesktop as a component of Red Hat Enterprise Linux 5 · rdesktop as a component of Red Hat Enterprise Linux 6 · rdesktop.src as a component of Red Hat Enterprise Linux 6

Full record on NVD

Fix

  1. No fix planned, says the vendor Red Hat Product Security CVE-2018-20178 · 3 productsWill not 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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2019-03-15
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-hr47-ggx3-938x

Frequently asked questions

What is CVE-2018-20178?

rdesktop versions up to and including v1.8.3 contain an Out-Of-Bounds Read in the function process_demand_active() that results in a Denial of Service (segfault).

Is CVE-2018-20178 actively exploited?

Active exploitation of CVE-2018-20178 has not been confirmed. Its EPSS score was 4.3% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-20178?

CVE-2018-20178 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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Sources for this record