CVE-2019-20788

CRITICAL

Canonical Ubuntu Linux < 0.9.12 - Integer Overflow

Title source: rule
STIX 2.1

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.

References (5)

Core 5
Core References
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00027.html
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4407-1/
Patch, Third Party Advisory x_refsource_confirm
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf

Scores

CVSS v3 9.8
EPSS 0.0080
EPSS Percentile 74.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-190 CWE-787
Status published
Products (13)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04 (2 CPE variants)
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 18.10
debian/debian_linux 8.0
debian/debian_linux 9.0
libvnc_project/libvncserver < 0.9.12
siemens/simatic_itc1500_firmware 3.0.0.0 - 3.2.1.0
siemens/simatic_itc1500_pro_firmware 3.0.0.0 - 3.2.1.0
siemens/simatic_itc1900_firmware 3.0.0.0 - 3.2.1.0
... and 3 more
Published Apr 23, 2020
Tracked Since Feb 18, 2026