CVE-2018-21247

An issue was discovered in LibVNCServer before 0.9.13. There is an information leak (of uninitialized memory contents) in the libvncclient/rfbproto.c ConnectToRFBRepeater function.

CVSS v3.0 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://github.com/LibVNC/libvncserver/compare/LibVNCServer-0.9.12...LibVNCServer-0.9.13	Patch Third Party Advisory
https://github.com/LibVNC/libvncserver/issues/253	Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN3H354QPXEZ/	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

OR	cpe:2.3:o:fedoraproject:fedora:31:::::::*
	cpe:2.3:o:fedoraproject:fedora:32:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:opensuse:leap:15.1:::::::*
	cpe:2.3:o:opensuse:leap:15.2:::::::*

Information

Published : 2020-06-17 16:15

Updated : 2021-12-14 14:15

NVD link : CVE-2018-21247

Mitre link : CVE-2018-21247

JSON object : View

Products Affected

opensuse

leap

libvncserver_project

libvncserver

fedoraproject

fedora

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

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