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.
Published 2016-12-31 18:59:00
Updated 2020-10-23 13:15:14
Source MITRE
View at NVD,   CVE.org
Vulnerability category: OverflowExecute codeDenial of service

Exploit prediction scoring system (EPSS) score for CVE-2016-9942

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-2016-9942

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-2016-9942

References for CVE-2016-9942

Products affected by CVE-2016-9942

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