RHSA-2023:2257 — Security Advisory

An update for tigervnc is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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: XkbGetKbdByName use-after-free (CVE-2022-4283)

• xorg-x11-server: XTestSwapFakeInput stack overflow (CVE-2022-46340)

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

• xorg-x11-server: XvdiSelectVideoNotify use-after-free (CVE-2022-46342)

• xorg-x11-server: ScreenSaverSetAttributes use-after-free (CVE-2022-46343)

• xorg-x11-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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.2 Release Notes linked from the References section.