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Red Hat Security Advisory 2023-7428-01

Red Hat Security Advisory 2023-7428-01
Posted Nov 22, 2023
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2023-7428-01 - An update for tigervnc is now available for Red Hat Enterprise Linux 7. Issues addressed include out of bounds write and use-after-free vulnerabilities.

tags | advisory, vulnerability
systems | linux, redhat
advisories | CVE-2023-5367
SHA-256 | e1777058ed5bdd6393bb17d224962e7cd066901f0e5c3b9bd7c95653bc25c4d6

Red Hat Security Advisory 2023-7428-01

Change Mirror Download


The following advisory data is extracted from:

https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_7428.json

Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.

- Packet Storm Staff




====================================================================
Red Hat Security Advisory

Synopsis: Important: tigervnc security update
Advisory ID: RHSA-2023:7428-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2023:7428
Issue date: 2023-11-21
Revision: 01
CVE Names: CVE-2023-5367
====================================================================

Summary:

An update for tigervnc is now available for Red Hat Enterprise Linux 7.

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.




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: Out-of-bounds write in XIChangeDeviceProperty/RRChangeOutputProperty (CVE-2023-5367)

* xorg-x11-server: Use-after-free bug in DestroyWindow (CVE-2023-5380)

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.


Solution:

https://access.redhat.com/articles/11258



CVEs:

CVE-2023-5367

References:

https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id=2243091
https://bugzilla.redhat.com/show_bug.cgi?id=2244736

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