CVE-2018-21247

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-909

Affected software

No affected versions have been published.

Timeline

Published
Jun 17, 2020
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

CVE-2018-212487.5An issue was discovered in Mattermost Server before 5.4.0. It mishandles possession of superfluous authentication credentials.CVE-2018-212493.7An issue was discovered in Mattermost Server before 5.3.0. It mishandles timing.CVE-2018-212506.5An issue was discovered in Mattermost Server before 5.2.2, 5.1.2, and 4.10.4. It allows remote attackers to cause a denial of service (memorCVE-2018-212519.8An issue was discovered in Mattermost Server before 5.2 and 5.1.1. Authorization could be bypassed if the channel name were not the same in CVE-2018-212524.3An issue was discovered in Mattermost Server before 5.2, 5.1.1, 5.0.3, and 4.10.3. Attackers could use multiple e-mail addresses to bypass aCVE-2018-212534.3An issue was discovered in Mattermost Server before 5.1, 5.0.2, and 4.10.2. An attacker could use the invite_people slash command to invite CVE-2018-212544.3An issue was discovered in Mattermost Server before 5.1. An attacker can bypass intended access control (for direct-message channel creationCVE-2018-212554.3An issue was discovered in Mattermost Server before 5.1. Non-members of a channel could use the Channel PATCH API to modify that channel.CVE-2018-212564.3An issue was discovered in Mattermost Server before 5.1. It allows attackers to bypass intended access restrictions (for group-message channCVE-2018-212575.3An issue was discovered in Mattermost Server before 5.1. It allows attackers to bypass intended access restrictions (for setting a channel hCVE-2018-212587.5An issue was discovered in Mattermost Server before 5.1. It allows attackers to cause a denial of service via the invite_people slash commanCVE-2018-212595.3An issue was discovered in Mattermost Server before 4.10.1, 4.9.4, and 4.8.2. It allows attackers to cause a denial of service (application
CVE-2018-21247: High severity, CVSS 7.5 | Vulnix