CVE-2018-20022

Published: 19 December 2018

LibVNC before 2f5b2ad1c6c99b1ac6482c95844a84d66bb52838 contains multiple weaknesses CWE-665: Improper Initialization vulnerability in VNC client code that allows attacker to read stack memory and can be abuse for information disclosure. Combined with another vulnerability, it can be used to leak stack memory layout and in bypassing ASLR

Priority

CVSS 3 base score: 7.5

Status

Package	Release	Status
italc Launchpad, Ubuntu, Debian	bionic	Released (1:3.0.3+dfsg1-3ubuntu0.1)
	focal	Does not exist
	groovy	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	precise	Does not exist
	trusty	Does not exist (trusty was needed)
	upstream	Released (1:3.0.3+dfsg1-1+deb9u1, 1:2.0.2+dfsg1-2+deb8u1)
	xenial	Released (1:2.0.2+dfsg1-4ubuntu0.1)
libvncserver Launchpad, Ubuntu, Debian	bionic	Released (0.9.11+dfsg-1ubuntu1.1)
	cosmic	Released (0.9.11+dfsg-1.1ubuntu0.1)
	disco	Not vulnerable (0.9.11+dfsg-1.2)
	focal	Not vulnerable (0.9.11+dfsg-1.2)
	groovy	Not vulnerable (0.9.11+dfsg-1.2)
	hirsute	Not vulnerable (0.9.11+dfsg-1.2)
	impish	Not vulnerable (0.9.11+dfsg-1.2)
	jammy	Not vulnerable (0.9.11+dfsg-1.2)
	precise	Does not exist
	trusty	Does not exist (trusty was released [0.9.9+dfsg-1ubuntu1.4])
	upstream	Released (0.9.11+dfsg-1.2)
	xenial	Released (0.9.10+dfsg-3ubuntu0.16.04.3)
	Patches: upstream: https://github.com/LibVNC/libvncserver/commit/2f5b2ad1c6c99b1ac6482c95844a84d66bb52838
ssvnc Launchpad, Ubuntu, Debian	bionic	Needed
	focal	Not vulnerable (1.0.29-5)
	groovy	Not vulnerable (1.0.29-5)
	hirsute	Not vulnerable (1.0.29-5)
	impish	Not vulnerable (1.0.29-5)
	jammy	Not vulnerable (1.0.29-5)
	precise	Does not exist
	trusty	Does not exist (trusty was needed)
	upstream	Released (1.0.29-2+deb8u1, 1.0.29-3+deb9u1, 1.0.29-4+deb10u1, 1.0.29-5)
	xenial	Released (1.9.29-2+deb8u1build0.16.04.1)
tightvnc Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	groovy	Ignored (reached end-of-life)
	hirsute	Ignored (reached end-of-life)
	impish	Needs triage
	jammy	Needs triage
	precise	Does not exist
	trusty	Does not exist (trusty was needed)
	upstream	Released (1:1.3.9-6.5+deb8u1)
	xenial	Ignored (end of standard support, was needs-triage)
x11vnc Launchpad, Ubuntu, Debian	bionic	Not vulnerable (uses shared libvnc)
	cosmic	Ignored (reached end-of-life)
	disco	Not vulnerable (uses shared libvnc)
	focal	Not vulnerable (uses shared libvnc)
	groovy	Not vulnerable (uses shared libvnc)
	hirsute	Not vulnerable (uses shared libvnc)
	impish	Not vulnerable (uses shared libvnc)
	jammy	Not vulnerable (uses shared libvnc)
	precise	Does not exist
	trusty	Not vulnerable (uses shared libvnc)
	upstream	Needs triage
	xenial	Not vulnerable (uses shared libvnc)

References

Bugs

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