7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
0.013 Low
EPSS
Percentile
85.4%
An update is available for libvncserver.
This update affects Rocky Linux 8.
A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list
LibVNCServer is a C library that enables you to implement VNC server functionality into own programs.
Security Fix(es):
libvncserver: uninitialized memory contents are vulnerable to Information Leak (CVE-2018-21247)
libvncserver: buffer overflow in ConnectClientToUnixSock() (CVE-2019-20839)
libvncserver: libvncserver/rfbregion.c has a NULL pointer dereference (CVE-2020-14397)
libvncserver: libvncclient/rfbproto.c does not limit TextChat size (CVE-2020-14405)
libvncserver: libvncserver/rfbserver.c has a divide by zero which could result in DoS (CVE-2020-25708)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Rocky Linux 8.4 Release Notes linked from the References section.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
rocky | 8 | aarch64 | libvncserver | < 0.9.11-17.el8 | libvncserver-0:0.9.11-17.el8.aarch64.rpm |
rocky | 8 | i686 | libvncserver | < 0.9.11-17.el8 | libvncserver-0:0.9.11-17.el8.i686.rpm |
rocky | 8 | x86_64 | libvncserver | < 0.9.11-17.el8 | libvncserver-0:0.9.11-17.el8.x86_64.rpm |
rocky | 8 | aarch64 | libvncserver-debuginfo | < 0.9.11-17.el8 | libvncserver-debuginfo-0:0.9.11-17.el8.aarch64.rpm |
rocky | 8 | i686 | libvncserver-debuginfo | < 0.9.11-17.el8 | libvncserver-debuginfo-0:0.9.11-17.el8.i686.rpm |
rocky | 8 | x86_64 | libvncserver-debuginfo | < 0.9.11-17.el8 | libvncserver-debuginfo-0:0.9.11-17.el8.x86_64.rpm |
rocky | 8 | aarch64 | libvncserver-debugsource | < 0.9.11-17.el8 | libvncserver-debugsource-0:0.9.11-17.el8.aarch64.rpm |
rocky | 8 | i686 | libvncserver-debugsource | < 0.9.11-17.el8 | libvncserver-debugsource-0:0.9.11-17.el8.i686.rpm |
rocky | 8 | x86_64 | libvncserver-debugsource | < 0.9.11-17.el8 | libvncserver-debugsource-0:0.9.11-17.el8.x86_64.rpm |
rocky | 8 | aarch64 | libvncserver-devel | < 0.9.11-17.el8 | libvncserver-devel-0:0.9.11-17.el8.aarch64.rpm |
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
0.013 Low
EPSS
Percentile
85.4%