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CVE-2017-18922 Details

Description

It was discovered that websockets.c in LibVNCServer prior to 0.9.12 did not properly decode certain WebSocket frames. A malicious attacker could exploit this by sending specially crafted WebSocket frames to a server, causing a heap-based buffer overflow.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00020.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00028.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html	CVE	Mailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1852356	CVE	Issue TrackingThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf	CVE	PatchThird Party Advisory
https://github.com/LibVNC/libvncserver/commit/aac95a9dcf4bbba87b76c72706c3221a842ca433	CVE	PatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN3H354QPXEZ/	CVE
https://usn.ubuntu.com/4407-1/	CVE	PatchThird Party Advisory
https://www.openwall.com/lists/oss-security/2020/06/30/2	CVE	Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2020/06/30/3	CVE	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00020.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00028.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00033.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00055.html	[email protected]	Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00066.html	[email protected]	Mailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1852356	[email protected]	Issue TrackingThird Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-390195.pdf	[email protected]	PatchThird Party Advisory
https://github.com/LibVNC/libvncserver/commit/aac95a9dcf4bbba87b76c72706c3221a842ca433	[email protected]	PatchThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4F6FUH4EFK4NAP6GT4TQRTBKWIRCZLIY/	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NVP7TJVYJDXDFRHVQ3ENEN3H354QPXEZ/	[email protected]
https://usn.ubuntu.com/4407-1/	[email protected]	PatchThird Party Advisory
https://www.openwall.com/lists/oss-security/2020/06/30/2	[email protected]	Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2020/06/30/3	[email protected]	Mailing ListThird Party Advisory

see all 26 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-787	Out-of-bounds Write	[email protected]

Affected Products

Product	Versions
libvncserver project libvncserver	< 0.9.12
CPE cpe:2.3:a:libvncserver_project:libvncserver:::::::: Remediation No remediation found in references.
canonical ubuntu linux	16.04 18.04 19.10 20.04
CPE cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::* cpe:2.3:o:canonical:ubuntu_linux:20.04::::lts::: Remediation No remediation found in references.
opensuse leap	15.1 15.2
CPE cpe:2.3:o:opensuse:leap:15.1:::::::* cpe:2.3:o:opensuse:leap:15.2:::::::* Remediation No remediation found in references.
fedoraproject fedora	31 32
CPE cpe:2.3:o:fedoraproject:fedora:31:::::::* cpe:2.3:o:fedoraproject:fedora:32:::::::* Remediation No remediation found in references.
siemens simatic itc1500 firmware	>= 3.0.0.0, < 3.2.1.0
CPE cpe:2.3:o:siemens:simatic_itc1500_firmware:::::::: Remediation No remediation found in references.
siemens simatic itc1500	All versions
CPE cpe:2.3:h:siemens:simatic_itc1500:-:::::::* Remediation No remediation found in references.
siemens simatic itc1500 pro firmware	>= 3.0.0.0, < 3.2.1.0
CPE cpe:2.3:o:siemens:simatic_itc1500_pro_firmware:::::::: Remediation No remediation found in references.
siemens simatic itc1500 pro	All versions
CPE cpe:2.3:h:siemens:simatic_itc1500_pro:-:::::::* Remediation No remediation found in references.
siemens simatic itc1900 firmware	>= 3.0.0.0, < 3.2.1.0
CPE cpe:2.3:o:siemens:simatic_itc1900_firmware:::::::: Remediation No remediation found in references.
siemens simatic itc1900	All versions
CPE cpe:2.3:h:siemens:simatic_itc1900:-:::::::* Remediation No remediation found in references.
siemens simatic itc1900 pro firmware	>= 3.0.0.0, < 3.2.1.0
CPE cpe:2.3:o:siemens:simatic_itc1900_pro_firmware:::::::: Remediation No remediation found in references.
siemens simatic itc1900 pro	All versions
CPE cpe:2.3:h:siemens:simatic_itc1900_pro:-:::::::* Remediation No remediation found in references.
siemens simatic itc2200 firmware	>= 3.0.0.0, < 3.2.1.0
CPE cpe:2.3:o:siemens:simatic_itc2200_firmware:::::::: Remediation No remediation found in references.
siemens simatic itc2200	All versions
CPE cpe:2.3:h:siemens:simatic_itc2200:-:::::::* Remediation No remediation found in references.
siemens simatic itc2200 pro firmware	>= 3.0.0.0, < 3.2.1.0
CPE cpe:2.3:o:siemens:simatic_itc2200_pro_firmware:::::::: Remediation No remediation found in references.
siemens simatic itc2200 pro	All versions
CPE cpe:2.3:h:siemens:simatic_itc2200_pro:-:::::::* Remediation No remediation found in references.

Change History

17 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Apr 1, 2022	Modified Analysis	[email protected]
Dec 14, 2021	CVE Modified	[email protected]
Jul 24, 2020	CVE Modified	[email protected]
Jul 23, 2020	Modified Analysis	[email protected]
Jul 21, 2020	CVE Modified	[email protected]
Jul 18, 2020	CVE Modified	[email protected]
Jul 18, 2020	CVE Modified	[email protected]
Jul 16, 2020	CVE Modified	[email protected]
Jul 15, 2020	CVE Modified	[email protected]
Jul 15, 2020	CVE Modified	[email protected]
Jul 14, 2020	CVE Modified	[email protected]
Jul 6, 2020	Initial Analysis	[email protected]
Jun 30, 2020	CVE Modified	[email protected]

CVE-2017-18922 Details

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