Detections
Analytics
EulerOS 2.0 SP8 : libvncserver (EulerOS-SA-2021-1153)
high Nessus Plugin ID 145732
Synopsis
The remote EulerOS host is missing multiple security updates.Description
According to the versions of the libvncserver package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :- A divide by zero issue was found to occur in libvncserver-0.9.12. A malicious client could use this flaw to send a specially crafted message that, when processed by the VNC server, would lead to a floating point exception, resulting in a denial of service.(CVE-2020-25708)
- 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.(CVE-2019-20840)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected libvncserver packages.See Also
Plugin Details
Severity: High
ID: 145732
File Name: EulerOS_SA-2021-1153.nasl
Version: 1.3
Type: local
Family: Huawei Local Security Checks
Published: 2/1/2021
Updated: 1/25/2024
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.9
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2020-25708
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:huawei:euleros:libvncserver, cpe:/o:huawei:euleros:2.0
Required KB Items: Host/local_checks_enabled, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/sp
Excluded KB Items: Host/EulerOS/uvp_version
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 2/1/2021
Reference Information
CVE: CVE-2019-20840, CVE-2020-25708