---
cve: "CVE-2016-9942"
severity: "LOW"
cvss: 3.1
epss: "3.8%"
vendor: "n/a"
kev: false
exploited: false
published: "2016-12-31 18:59:00"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-15T02:59:39+02:00"
---

# CVE-2016-9942

> 3.1 LOW · 🧪 PoC

## Beschreibung

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.

## Patch verfügbar (OSV)

- 8415ff4c3517c6697d53e1a17bba35284f480891 (Commit)

## Referenzen

- <http://www.securityfocus.com/bid/95170>
- <https://github.com/LibVNC/libvncserver/pull/137>
- <http://www.debian.org/security/2017/dsa-3753>
- <https://security.gentoo.org/glsa/201702-24>
- <https://github.com/LibVNC/libvncserver/releases/tag/LibVNCServer-0.9.11>
- <https://lists.debian.org/debian-lts-announce/2019/10/msg00042.html>
- <https://usn.ubuntu.com/4587-1/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2016-9942) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_