CVE-2018-20750

Name	CVE-2018-20750
Description	LibVNC through 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-1652-1, DLA-1979-1
Debian Bugs	920941

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
italc (PTS)	jessie, jessie (lts)	1:2.0.2+dfsg1-2+deb8u1	fixed
	stretch	1:3.0.3+dfsg1-1+deb9u1	fixed
libvncserver (PTS)	jessie, jessie (lts)	0.9.9+dfsg2-6.1+deb8u8	fixed
	stretch (security)	0.9.11+dfsg-1.3~deb9u6	fixed
	stretch (lts), stretch	0.9.11+dfsg-1.3~deb9u7	fixed
	buster (security), buster, buster (lts)	0.9.11+dfsg-1.3+deb10u5	fixed
	bullseye	0.9.13+dfsg-2+deb11u1	fixed
	sid, trixie, bookworm	0.9.14+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
italc	source	wheezy	(unfixed)	end-of-life
italc	source	jessie	1:2.0.2+dfsg1-2+deb8u1		DLA-1979-1
italc	source	stretch	(not affected)
italc	source	(unstable)	(unfixed)
libvncserver	source	wheezy	(unfixed)	end-of-life
libvncserver	source	jessie	0.9.9+dfsg2-6.1+deb8u5		DLA-1652-1
libvncserver	source	stretch	(not affected)
libvncserver	source	(unstable)	0.9.11+dfsg-1.3			920941

Notes

[stretch] - libvncserver <not-affected> (Incomplete fix for CVE-2018-15127 not applied)
[stretch] - italc <not-affected> (Incomplete fix for CVE-2018-15127 not applied)
https://github.com/LibVNC/libvncserver/commit/09e8fc02f59f16e2583b34fe1a270c238bd9ffec