Critical severity9.8OSV Advisory· Published Dec 19, 2018· Updated Jun 17, 2026
CVE-2018-20020
CVE-2018-20020
Description
LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
25- Range: LibVNCServer-0.9.10, LibVNCServer-0.9.11, LibVNCServer-0.9.8, …
- osv-coords23 versionspkg:rpm/opensuse/LibVNCServer&distro=openSUSE%20Leap%2015.0pkg:rpm/suse/LibVNCServer&distro=SUSE%20Enterprise%20Storage%204pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-LTSSpkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP3-TERADATApkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP1-LTSSpkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-BCLpkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP2-LTSSpkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2012-LTSSpkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2011%20SP4pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP1pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP2pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP3pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2011%20SP4pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP3pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015pkg:rpm/suse/LibVNCServer&distro=SUSE%20OpenStack%20Cloud%207
< 0.9.10-lp150.3.3.1+ 22 more
- (no CPE)range: < 0.9.10-lp150.3.3.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.10-4.3.1
- (no CPE)range: < 0.9.1-160.6.1
- (no CPE)range: < 0.9.1-160.6.1
- (no CPE)range: < 0.9.1-160.6.1
- (no CPE)range: < 0.9.1-160.6.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.1-160.6.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.1-160.6.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.9-17.8.1
- (no CPE)range: < 0.9.10-4.3.1
- (no CPE)range: < 0.9.9-17.8.1
Patches
Vulnerability mechanics
References
11- ics-cert.kaspersky.com/advisories/klcert-advisories/2018/12/19/klcert-18-030-libvnc-heap-out-of-bound-write/nvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2018/12/msg00017.htmlnvdMailing ListThird Party Advisory
- usn.ubuntu.com/3877-1/nvdThird Party Advisory
- www.debian.org/security/2019/dsa-4383nvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2019/10/msg00042.htmlnvd
- lists.debian.org/debian-lts-announce/2019/11/msg00033.htmlnvd
- security.gentoo.org/glsa/201908-05nvd
- security.gentoo.org/glsa/202006-06nvd
- usn.ubuntu.com/4547-1/nvd
- usn.ubuntu.com/4547-2/nvd
- usn.ubuntu.com/4587-1/nvd
News mentions
0No linked articles in our index yet.