CVE-2016-9942

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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

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

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

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

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

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

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Configurations

Configuration 1 (hide)

cpe:2.3:a:libvncserver_project:libvncserver:0.9.10:*:*:*:*:*:*:*

Information

Published : 2016-12-31 10:59

Updated : 2020-10-23 06:15

NVD link : CVE-2016-9942

Mitre link : CVE-2016-9942

JSON object : View

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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Products Affected

libvncserver_project

libvncserver

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