CVE-2018-20750

critical
New! CVE Severity Now Using CVSS v3

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Description

LibVNC through 0.9.12 contains a heap out-of-bounds write vulnerability in libvncserver/rfbserver.c. The fix for CVE-2018-15127 was incomplete.

References

http://www.securityfocus.com/bid/106825

https://github.com/LibVNC/libvncserver/commit/09e8fc02f59f16e2583b34fe1a270c238bd9ffec

https://github.com/LibVNC/libvncserver/issues/273

https://lists.debian.org/debian-lts-announce/2019/01/msg00029.html

https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html

https://usn.ubuntu.com/3877-1/

https://usn.ubuntu.com/4547-1/

https://usn.ubuntu.com/4587-1/

https://www.openwall.com/lists/oss-security/2018/12/10/8

Details

Source: MITRE

Published: 2019-01-30

Updated: 2020-10-23

Type: CWE-787

Risk Information

CVSS v2

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL

Tenable Plugins

View all (13 total)

IDNameProductFamilySeverity
141545Ubuntu 16.04 LTS : iTALC vulnerabilities (USN-4587-1)NessusUbuntu Local Security Checks
critical
140920Ubuntu 18.04 LTS : iTALC vulnerabilities (USN-4547-1)NessusUbuntu Local Security Checks
critical
130408Debian DLA-1979-1 : italc security updateNessusDebian Local Security Checks
critical
123109EulerOS 2.0 SP3 : libvncserver (EulerOS-SA-2019-1096)NessusHuawei Local Security Checks
critical
122691EulerOS 2.0 SP5 : libvncserver (EulerOS-SA-2019-1068)NessusHuawei Local Security Checks
critical
122378EulerOS 2.0 SP2 : libvncserver (EulerOS-SA-2019-1051)NessusHuawei Local Security Checks
critical
122300openSUSE Security Update : LibVNCServer (openSUSE-2019-200)NessusSuSE Local Security Checks
critical
122296openSUSE Security Update : LibVNCServer (openSUSE-2019-196)NessusSuSE Local Security Checks
critical
122151SUSE SLES11 Security Update : LibVNCServer (SUSE-SU-2019:13952-1)NessusSuSE Local Security Checks
critical
122092SUSE SLES12 Security Update : LibVNCServer (SUSE-SU-2019:0313-1)NessusSuSE Local Security Checks
critical
122047SUSE SLED15 / SLES15 Security Update : LibVNCServer (SUSE-SU-2019:0283-1)NessusSuSE Local Security Checks
critical
121541Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : LibVNCServer vulnerabilities (USN-3877-1)NessusUbuntu Local Security Checks
critical
121517Debian DLA-1652-1 : libvncserver security updateNessusDebian Local Security Checks
critical