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AUSCERT External Security Bulletin Redistribution
ESB-2024.2564
tigervnc security update
26 April 2024
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AusCERT Security Bulletin Summary
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Product: tigervnc
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2024-31080 CVE-2024-31081 CVE-2024-31083
Original Bulletin:
https://access.redhat.com/errata/RHSA-2024:2039
Comment: CVSS (Max): 7.8 CVE-2024-31083 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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Red Hat Security Advisory
Synopsis: Important: tigervnc security update
Advisory ID: RHSA-2024:2039
Product: Red Hat Enterprise Linux AppStream EUS (v.8.6)
Advisory URL: https://access.redhat.com/errata/RHSA-2024:2039
Issue date: 2024-04-24
CVE Names: CVE-2024-31080 CVE-2024-31081 CVE-2024-31083
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1. Summary:
An update for tigervnc is now available for Red Hat Enterprise Linux 8.6
Extended Update Support.
Red Hat Product Security has rated this update as having a security impact of
Important. A Common Vulnerability Scoring System (CVSS) base score, which gives
a detailed severity rating, is available for each vulnerability from the CVE
link(s) in the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AppStream EUS (v.8.6) - aarch64, ppc64le, x86_64,
s390x, noarch
3. Description:
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: Heap buffer overread/data leakage in ProcXIGetSelectedEvents
(CVE-2024-31080)
* xorg-x11-server: Heap buffer overread/data leakage in ProcXIPassiveGrabDevice
(CVE-2024-31081)
* xorg-x11-server: User-after-free in ProcRenderAddGlyphs (CVE-2024-31083)
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.
4. Solution:
For details on how to apply this update, which includes the changes described in
this advisory, refer to:
https://access.redhat.com/articles/11258
5. Bugs fixed (https://bugzilla.redhat.com/):
2271997 - CVE-2024-31080 - xorg-x11-server: Heap buffer overread/data leakage in
ProcXIGetSelectedEvents
2271998 - CVE-2024-31081 - xorg-x11-server: Heap buffer overread/data leakage in
ProcXIPassiveGrabDevice
2272000 - CVE-2024-31083 - xorg-x11-server: User-after-free in
ProcRenderAddGlyphs
6. Package List:
Red Hat Enterprise Linux AppStream EUS (v.8.6)
aarch64:
tigervnc-0:1.12.0-6.el8_6.11.aarch64.rpm
tigervnc-debuginfo-0:1.12.0-6.el8_6.11.aarch64.rpm
tigervnc-debugsource-0:1.12.0-6.el8_6.11.aarch64.rpm
tigervnc-server-0:1.12.0-6.el8_6.11.aarch64.rpm
tigervnc-server-debuginfo-0:1.12.0-6.el8_6.11.aarch64.rpm
tigervnc-server-minimal-0:1.12.0-6.el8_6.11.aarch64.rpm
tigervnc-server-minimal-debuginfo-0:1.12.0-6.el8_6.11.aarch64.rpm
tigervnc-server-module-0:1.12.0-6.el8_6.11.aarch64.rpm
tigervnc-server-module-debuginfo-0:1.12.0-6.el8_6.11.aarch64.rpm
ppc64le:
tigervnc-0:1.12.0-6.el8_6.11.ppc64le.rpm
tigervnc-debuginfo-0:1.12.0-6.el8_6.11.ppc64le.rpm
tigervnc-debugsource-0:1.12.0-6.el8_6.11.ppc64le.rpm
tigervnc-server-0:1.12.0-6.el8_6.11.ppc64le.rpm
tigervnc-server-debuginfo-0:1.12.0-6.el8_6.11.ppc64le.rpm
tigervnc-server-minimal-0:1.12.0-6.el8_6.11.ppc64le.rpm
tigervnc-server-minimal-debuginfo-0:1.12.0-6.el8_6.11.ppc64le.rpm
tigervnc-server-module-0:1.12.0-6.el8_6.11.ppc64le.rpm
tigervnc-server-module-debuginfo-0:1.12.0-6.el8_6.11.ppc64le.rpm
s390x:
tigervnc-0:1.12.0-6.el8_6.11.s390x.rpm
tigervnc-debuginfo-0:1.12.0-6.el8_6.11.s390x.rpm
tigervnc-debugsource-0:1.12.0-6.el8_6.11.s390x.rpm
tigervnc-server-0:1.12.0-6.el8_6.11.s390x.rpm
tigervnc-server-debuginfo-0:1.12.0-6.el8_6.11.s390x.rpm
tigervnc-server-minimal-0:1.12.0-6.el8_6.11.s390x.rpm
tigervnc-server-minimal-debuginfo-0:1.12.0-6.el8_6.11.s390x.rpm
tigervnc-server-module-0:1.12.0-6.el8_6.11.s390x.rpm
tigervnc-server-module-debuginfo-0:1.12.0-6.el8_6.11.s390x.rpm
Source:
tigervnc-0:1.12.0-6.el8_6.11.src.rpm
x86_64:
tigervnc-0:1.12.0-6.el8_6.11.x86_64.rpm
tigervnc-debuginfo-0:1.12.0-6.el8_6.11.x86_64.rpm
tigervnc-debugsource-0:1.12.0-6.el8_6.11.x86_64.rpm
tigervnc-server-0:1.12.0-6.el8_6.11.x86_64.rpm
tigervnc-server-debuginfo-0:1.12.0-6.el8_6.11.x86_64.rpm
tigervnc-server-minimal-0:1.12.0-6.el8_6.11.x86_64.rpm
tigervnc-server-minimal-debuginfo-0:1.12.0-6.el8_6.11.x86_64.rpm
tigervnc-server-module-0:1.12.0-6.el8_6.11.x86_64.rpm
tigervnc-server-module-debuginfo-0:1.12.0-6.el8_6.11.x86_64.rpm
noarch:
tigervnc-icons-0:1.12.0-6.el8_6.11.noarch.rpm
tigervnc-license-0:1.12.0-6.el8_6.11.noarch.rpm
tigervnc-selinux-0:1.12.0-6.el8_6.11.noarch.rpm
7. References:
https://access.redhat.com/security/cve/CVE-2024-31080
https://access.redhat.com/security/cve/CVE-2024-31081
https://access.redhat.com/security/cve/CVE-2024-31083
https://access.redhat.com/security/updates/classification/#important
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