Slackware recently pushed updated tigervnc packages for version 15.0 and the rolling release branch to patch serious security holes. Administrators will notice these builds link against a corrected xorg-server that neutralizes multiple dangerous flaws, including buffer overflows and use-after-free bugs in XKB and XSYNC modules. The official advisory references several CVE numbers so teams can verify exactly which vulnerabilities are being mitigated. You can grab the new files from any standard mirror and apply them instantly by running upgradepkg with root privileges.

tigervnc (SSA:2026-108-01)

tigervnc (SSA:2026-108-01)

tigervnc (SSA:2026-108-01)

New tigervnc packages are available for Slackware 15.0 and -current to
fix security issues.

Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
extra/tigervnc/tigervnc-1.16.2-i586-2_slack15.0.txz: Rebuilt.
Rebuilt against xorg-server-1.20.14 patched to fix security issues:
XKB Integer Underflow in XkbSetCompatMap().
XKB Out-of-bounds Read in CheckSetGeom().
XSYNC Use-after-free in miSyncTriggerFence().
XKB Out-of-bounds read in CheckModifierMap().
XKB Buffer overflow in CheckKeyTypes().
For more information, see:
https://lists.x.org/archives/xorg-devel/2026-April/059446.html
https://www.cve.org/CVERecord?id=CVE-2026-33999
https://www.cve.org/CVERecord?id=CVE-2026-34000
https://www.cve.org/CVERecord?id=CVE-2026-34001
https://www.cve.org/CVERecord?id=CVE-2026-34002
https://www.cve.org/CVERecord?id=CVE-2026-34003
(* Security fix *)
+--------------------------+

Where to find the new packages:
+-----------------------------+

Thanks to the friendly folks at the OSU Open Source Lab
( http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the "Get Slack" section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/extra/tigervnc/tigervnc-1.16.2-i586-2_slack15.0.txz

Updated package for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/extra/tigervnc/tigervnc-1.16.2-x86_64-2_slack15.0.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/extra/tigervnc/tigervnc-1.16.2-i686-2.txz

Updated packages for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/extra/tigervnc/tigervnc-1.16.2-x86_64-2.txz

MD5 signatures:
+-------------+

Slackware 15.0 package:
8b2682a2a5b5f53c0010e376c92684f2 tigervnc-1.16.2-i586-2_slack15.0.txz

Slackware x86_64 15.0 package:
11f21182cad730ef64c9f5275074cde2 tigervnc-1.16.2-x86_64-2_slack15.0.txz

Slackware -current package:
697027c266f16e99170e0fbc258a1e48 tigervnc-1.16.2-i686-2.txz

Slackware x86_64 -current package:
15118c571f7e0543397923b8fccb2205 tigervnc-1.16.2-x86_64-2.txz

Installation instructions:
+------------------------+

Upgrade the package as root:
# upgradepkg tigervnc-1.16.2-i586-2_slack15.0.txz

+-----+

Slackware Linux Security Team
http://slackware.com/gpg-key