Buffer overflow in Libvnc_project Libvncserver
CVE-2018-20020
LibVNC before commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d contains heap out-of-bound write vulnerability inside structure in VNC client code that can result remote code execution
Vulnerability class: Buffer Overflow
EPSS: 0.086 (94.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Libvnc_project Libvncserver
- Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
- Debian Debian_linux — versions 8.0, 9.0
- N/a Libvnc — versions commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d
Weakness classification (CWE)
References
- vulnerability@kaspersky.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- vulnerability@kaspersky.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- vulnerability@kaspersky.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- vulnerability@kaspersky.com (Third Party Advisory, x_refsource_MISC)
- vulnerability@kaspersky.com (vendor-advisory, x_refsource_GENTOO)
- vulnerability@kaspersky.com (mailing-list, x_refsource_MLIST)
- vulnerability@kaspersky.com (mailing-list, x_refsource_MLIST)
- vulnerability@kaspersky.com (vendor-advisory, x_refsource_GENTOO)
- vulnerability@kaspersky.com (x_refsource_UBUNTU, vendor-advisory)
- vulnerability@kaspersky.com (x_refsource_UBUNTU, vendor-advisory)
Frequently asked questions
- What is CVE-2018-20020?
- CVE-2018-20020 is a critical-severity vulnerability in Libvnc_project Libvncserver, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2018-12-19.
- How severe is CVE-2018-20020?
- Critical severity. CVSS v3 base score is 9.8 out of 10.