Vulnerability Details : CVE-2016-9941
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.
Vulnerability category: OverflowExecute codeDenial of service
Exploit prediction scoring system (EPSS) score for CVE-2016-9941
Probability of exploitation activity in the next 30 days: 1.24%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 85 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2016-9941
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
|
9.8
|
CRITICAL | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2016-9941
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The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2016-9941
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http://www.securityfocus.com/bid/95170
LibVNCServer Multiple Heap Based Buffer Overflow Vulnerabilities
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http://www.debian.org/security/2017/dsa-3753
Debian -- Security Information -- DSA-3753-1 libvncserver
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https://github.com/LibVNC/libvncserver/releases/tag/LibVNCServer-0.9.11
Release LibVNCServer-0.9.11 · LibVNC/libvncserver · GitHub
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https://security.gentoo.org/glsa/201702-24
LibVNCServer/LibVNCClient: Multiple vulnerabilities (GLSA 201702-24) — Gentoo security
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https://usn.ubuntu.com/4587-1/
USN-4587-1: iTALC vulnerabilities | Ubuntu security notices | Ubuntu
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https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html
[SECURITY] [DLA 1979-1] italc security update
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https://github.com/LibVNC/libvncserver/pull/137
Fix two heap buffer overflows by atx · Pull Request #137 · LibVNC/libvncserver · GitHub
Products affected by CVE-2016-9941
- cpe:2.3:a:libvncserver_project:libvncserver:*:*:*:*:*:*:*:*