Red Hat alert RHSA-2023:7886-01 (tigervnc)

An update for tigervnc is now available for Red Hat Enterprise Linux 9.2
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.

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 memory reads/writes in XKB button actions
(CVE-2023-6377)

* xorg-x11-server: out-of-bounds memory read in RRChangeOutputProperty and
RRChangeProviderProperty (CVE-2023-6478)

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.

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Original: https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_7886.json