High RHSA-2025:13998 1 CVE

Red Hat Security Advisory: tigervnc security update

Published Aug 19, 2025 · Updated Aug 7, 2026

Ecosystem: Red Hat

Fixed packages 5

Release	Package	Fixed in
Red Hat · RHEL 6 ELS rhel_els:6	tigervnc	0:1.1.0-25.el6_10.14
Red Hat · RHEL 6 ELS rhel_els:6	tigervnc-debuginfo	0:1.1.0-25.el6_10.14
Red Hat · RHEL 6 ELS rhel_els:6	tigervnc-server	0:1.1.0-25.el6_10.14
Red Hat · RHEL 6 ELS rhel_els:6	tigervnc-server-applet	0:1.1.0-25.el6_10.14
Red Hat · RHEL 6 ELS rhel_els:6	tigervnc-server-module	0:1.1.0-25.el6_10.14

Vulnerabilities 1

High 7.8

CVE-2023-6377

Xorg-x11-server: out-of-bounds memory reads/writes in xkb button actions

A flaw was found in xorg-server. Querying or changing XKB button actions such as moving from a touchpad to a mouse can result in out-of-bounds memory reads and writes. This may allow local privilege escalation or possible remote code execution in cases where …

Red Hat Red Hat Enterprise Linux 9 Red Hat Enterprise Linux 8 Red Hat Enterprise Linux 7 Linux Debian Ubuntu Azure Linux Alpine

Dec 13, 2023

References

article
https://access.redhat.com/security/updates/classification/#important
report
https://bugzilla.redhat.com/show_bug.cgi?id=2253291
advisory
https://security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_13998.json
report
https://access.redhat.com/security/cve/CVE-2023-6377
advisory
https://www.cve.org/CVERecord?id=CVE-2023-6377
advisory
https://nvd.nist.gov/vuln/detail/CVE-2023-6377
article
https://gitlab.freedesktop.org/xorg/xserver/-/commit/0c1a93d319558fe3ab2d94f51d174b4f93810afd
article
https://lists.x.org/archives/xorg-announce/2023-December/003435.html