Detections
Analytics

Alpine: multiple libvncserver packages: security update to 0.9.11-r0

critical Tenable Cloud Security Plugin ID 405361

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

 - Heap-based buffer overflow in rfbproto.c in LibVNCClient in LibVNCServer before 0.9.11 allows remote
 servers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted
 FramebufferUpdate message containing a subrectangle outside of the client drawing area. (CVE-2016-9941)

 - Heap-based buffer overflow in ultra.c in LibVNCClient in LibVNCServer before 0.9.11 allows remote servers
 to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted
 FramebufferUpdate message with the Ultra type tile, such that the LZO payload decompressed length exceeds
 what is specified by the tile dimensions. (CVE-2016-9942)

See Also

https://security.alpinelinux.org/vuln/CVE-2016-9941

https://security.alpinelinux.org/vuln/CVE-2016-9942

Plugin Details

Severity: Critical

ID: 405361

Version: Revision 1.26

Type: Local

Published: 10/31/2023

Updated: 12/4/2025

Supported Sensors: Agentless Assessment

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2016-9942

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 12/31/2016

Reference Information

CVE: CVE-2016-9941, CVE-2016-9942

BID: 95170