7.5

CVE-2019-20840

An issue was discovered in LibVNCServer before 0.9.13. libvncserver/ws_decode.c can lead to a crash because of unaligned accesses in hybiReadAndDecode.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libvnc Project ≫ Libvncserver Version <= 0.9.12
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.10
Canonical ≫ Ubuntu Linux Version 20.04 SwEdition lts
Debian ≫ Debian Linux Version 8.0
Debian ≫ Debian Linux Version 9.0
Siemens ≫ Simatic Itc1500 Firmware Version >= 3.0.0.0 < 3.2.1.0
   Siemens ≫ Simatic Itc1500 Version -
Siemens ≫ Simatic Itc1500 Pro Firmware Version >= 3.0.0.0 < 3.2.1.0
   Siemens ≫ Simatic Itc1500 Pro Version -
Siemens ≫ Simatic Itc1900 Firmware Version >= 3.0.0.0 < 3.2.1.0
   Siemens ≫ Simatic Itc1900 Version -
Siemens ≫ Simatic Itc1900 Pro Firmware Version >= 3.0.0.0 < 3.2.1.0
   Siemens ≫ Simatic Itc1900 Pro Version -
Siemens ≫ Simatic Itc2200 Firmware Version >= 3.0.0.0 < 3.2.1.0
   Siemens ≫ Simatic Itc2200 Version -
Siemens ≫ Simatic Itc2200 Pro Firmware Version >= 3.0.0.0 < 3.2.1.0
   Siemens ≫ Simatic Itc2200 Pro Version -
Opensuse ≫ Leap Version 15.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 2.62% 0.838
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NIST 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf
Patch
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html
Third Party Advisory
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html
Third Party Advisory
Mailing List
https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13
Third Party Advisory
Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/
https://usn.ubuntu.com/4434-1/
Third Party Advisory
https://github.com/LibVNC/libvncserver/commit/0cf1400c61850065de590d403f6d49e32882fd76
Patch
Third Party Advisory