CVE-2019-20840

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Summary

CVECVE-2019-20840
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-06-17 16:15:00 UTC
Updated2023-11-07 03:09:00 UTC
DescriptionAn issue was discovered in LibVNCServer before 0.9.13. libvncserver/ws_decode.c can lead to a crash because of unaligned accesses in hybiReadAndDecode.

Risk And Classification

Problem Types: CWE-787

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Canonical Ubuntu Linux 18.10 All All All
Operating System Canonical Ubuntu Linux 20.04 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Application Libvncserver Project Libvncserver All All All All
Application Libvncserver Project Libvncserver All All All All
Application Libvnc Project Libvncserver All All All All
Operating System Opensuse Leap 15.1 All All All
Operating System Opensuse Leap 15.2 All All All
Operating System Opensuse Leap 15.1 All All All
Operating System Opensuse Leap 15.2 All All All
Hardware Siemens Simatic Itc1500 - All All All
Operating System Siemens Simatic Itc1500 Firmware All All All All
Hardware Siemens Simatic Itc1500 Pro - All All All
Operating System Siemens Simatic Itc1500 Pro Firmware All All All All
Hardware Siemens Simatic Itc1900 - All All All
Operating System Siemens Simatic Itc1900 Firmware All All All All
Hardware Siemens Simatic Itc1900 Pro - All All All
Operating System Siemens Simatic Itc1900 Pro Firmware All All All All
Hardware Siemens Simatic Itc2200 - All All All
Operating System Siemens Simatic Itc2200 Firmware All All All All
Hardware Siemens Simatic Itc2200 Pro - All All All
Operating System Siemens Simatic Itc2200 Pro Firmware All All All All

References

ReferenceSourceLinkTags
[security-announce] openSUSE-SU-2020:1056-1: important: Security update SUSE lists.opensuse.org
[security-announce] openSUSE-SU-2020:0988-1: important: Security update SUSE lists.opensuse.org Mailing List, Third Party Advisory
[SECURITY] Fedora 32 Update: libvncserver-0.9.13-2.fc32 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
Comparing LibVNCServer-0.9.12...LibVNCServer-0.9.13 · LibVNC/libvncserver · GitHub MISC github.com Release Notes, Third Party Advisory
USN-4434-1: LibVNCServer vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
[SECURITY] Fedora 32 Update: libvncserver-0.9.13-2.fc32 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org Mailing List, Third Party Advisory
[security-announce] openSUSE-SU-2020:1025-1: important: Security update SUSE lists.opensuse.org Mailing List, Third Party Advisory
cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf CONFIRM cert-portal.siemens.com
fix crash because of unaligned accesses in hybiReadAndDecode() · LibVNC/libvncserver@0cf1400 · GitHub MISC github.com Patch, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 501068 Alpine Linux Security Update for libvncserver
  • 590668 Siemens SIMATIC ITC Multiple Vulnerabilities (ICSA-21-350-12)
  • 671412 EulerOS Security Update for libvncserver (EulerOS-SA-2022-1329)
  • 671677 EulerOS Security Update for libvncserver (EulerOS-SA-2022-1740)
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