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centosCentOS ProjectCESA-2023:0045
HistoryJan 30, 2023 - 4:44 p.m.

tigervnc security update

2023-01-3016:44:07
CentOS Project
lists.centos.org
211
tigervnc
security fix
x.org server
remote display
cvss score
centos errata
upstream details

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.104

Percentile

95.1%

CentOS Errata and Security Advisory CESA-2023:0045

Virtual Network Computing (VNC) is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients.

Security Fix(es):

  • xorg-x11-server: X.Org Server XkbGetKbdByName use-after-free (CVE-2022-4283)

  • xorg-x11-server: X.Org Server XTestSwapFakeInput stack overflow (CVE-2022-46340)

  • xorg-x11-server: X.Org Server XIPassiveUngrab out-of-bounds access (CVE-2022-46341)

  • xorg-x11-server: X.Org Server XvdiSelectVideoNotify use-after-free (CVE-2022-46342)

  • xorg-x11-server: X.Org Server ScreenSaverSetAttributes use-after-free (CVE-2022-46343)

  • xorg-x11-server: X.Org Server XIChangeProperty out-of-bounds access (CVE-2022-46344)

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.

Merged security bulletin from advisories:
https://lists.centos.org/pipermail/centos-announce/2023-January/086362.html

Affected packages:
tigervnc
tigervnc-icons
tigervnc-license
tigervnc-server
tigervnc-server-applet
tigervnc-server-minimal
tigervnc-server-module

Upstream details at:
https://access.redhat.com/errata/RHSA-2023:0045

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.104

Percentile

95.1%