Vulnerability in Libvnc_project Libvncserver
CVE-2018-20021
LibVNC before commit c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c contains a CWE-835: Infinite loop vulnerability in VNC client code. Vulnerability allows attacker to consume excessive amount of resources like CPU and RAM
EPSS: 0.035 (87.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 c3115350eb8bb635d0fdb4dbbb0d0541f38ed19c
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 (Third Party Advisory, x_refsource_MISC)
- vulnerability@kaspersky.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- 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 (mailing-list, x_refsource_MLIST)
- vulnerability@kaspersky.com (vendor-advisory, x_refsource_GENTOO)
- vulnerability@kaspersky.com (x_refsource_UBUNTU, vendor-advisory)
Frequently asked questions
- What is CVE-2018-20021?
- CVE-2018-20021 is a high-severity vulnerability in Libvnc_project Libvncserver, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2018-12-19.
- How severe is CVE-2018-20021?
- High severity. CVSS v3 base score is 7.5 out of 10.