Critical severity9.8NVD Advisory· Published Apr 23, 2020· Updated Jun 17, 2026
CVE-2019-20788
CVE-2019-20788
Description
libvncclient/cursor.c in LibVNCServer through 0.9.12 has a HandleCursorShape integer overflow and heap-based buffer overflow via a large height or width value. NOTE: this may overlap CVE-2019-15690.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
25- LibVNCServer/LibVNCServerdescription
- osv-coords24 versionspkg:rpm/opensuse/LibVNCServer&distro=openSUSE%20Leap%2015.1pkg:rpm/suse/LibVNCServer&distro=HPE%20Helion%20OpenStack%208pkg:rpm/suse/LibVNCServer&distro=SUSE%20Enterprise%20Storage%205pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Package%20Hub%2015%20SP1pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Point%20of%20Sale%2011%20SP3pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2011%20SP4-LTSSpkg: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%20SP3-BCLpkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP3-LTSSpkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg: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%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP5pkg:rpm/suse/LibVNCServer&distro=SUSE%20Linux%20Enterprise%20Workstation%20Extension%2015%20SP1pkg:rpm/suse/LibVNCServer&distro=SUSE%20OpenStack%20Cloud%207pkg:rpm/suse/LibVNCServer&distro=SUSE%20OpenStack%20Cloud%208pkg:rpm/suse/LibVNCServer&distro=SUSE%20OpenStack%20Cloud%20Crowbar%208
< 0.9.10-lp151.7.3.1+ 23 more
- (no CPE)range: < 0.9.10-lp151.7.3.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.10-4.14.1
- (no CPE)range: < 0.9.1-160.14.1
- (no CPE)range: < 0.9.1-160.14.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.10-4.14.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
- (no CPE)range: < 0.9.9-17.19.1
Patches
Vulnerability mechanics
References
5- cert-portal.siemens.com/productcert/pdf/ssa-390195.pdfnvdPatchThird Party Advisory
- github.com/LibVNC/libvncserver/commit/54220248886b5001fbbb9fa73c4e1a2cb9413fednvdPatchThird Party Advisory
- securitylab.github.com/advisories/GHSL-2020-064-libvnc-libvncclientnvdExploitThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2020-05/msg00027.htmlnvdMailing ListThird Party Advisory
- usn.ubuntu.com/4407-1/nvdThird Party Advisory
News mentions
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