CVE-2020-18734

Publication date 23 August 2021

Last updated 11 July 2025

Ubuntu priority

Cvss 3 Severity Score

A stack buffer overflow in /ddsi/q_bitset.h of Eclipse IOT Cyclone DDS Project v0.1.0 causes the DDS subscriber server to crash.

Show unmaintained releases

Package	Ubuntu Release	Status
cyclonedds	26.04 LTS resolute	Needs evaluation
	25.10 questing	Ignored end of life, was needs-triage
	25.04 plucky	Ignored end of life, was needs-triage
	24.10 oracular	Ignored end of life, was needs-triage
	24.04 LTS noble	Needs evaluation
	23.10 mantic	Ignored end of life, was needs-triage
	23.04 lunar	Ignored end of life, was needs-triage
	22.10 kinetic	Ignored end of life, was needs-triage
	22.04 LTS jammy	Needs evaluation
	21.10 impish	Ignored end of life
	21.04 hirsute	Ignored end of life
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

CVSS version: CVSS v3.0

Base score 7.5 · High

Base metrics

Scores

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H