Slackware 15.0 tigervnc Critical Buffer Overflow Vuln 2026-154-05
slackware
June 3, 2026
New tigervnc packages are available for Slackware 15.0 and -current to fix security issues.
Summary
Here are the details from the Slackware 15.0 ChangeLog: extra/tigervnc/tigervnc-1.16.2-i586-3_slack15.0.txz: Rebuilt. Patched with fixes for the following xorg-server security issues: Font Alias Stack-based Buffer Overflow. XSYNC Use-After-Free in miSyncDestroyFence(). XKB Key Types Stack-based Buffer Overflow. XKB SetMap Request Stack-based Buffer Overflow. XSYNC Use-After-Free in FreeCounter(). XSYNC Use-After-Free in SyncChangeCounter(). GLX ChangeDrawableAttributes Out-Of-Bounds Read/Write. CreateSaverWindow Use-After-Free Information Disclosure. DRI2 DRIGetBuffers/DRIGetBuffersWithFormat Out-Of-Bounds Write. For more information, see: https://lists.x.org/archives/xorg/2026-June/062239.html Zero Day Initiative identifiers: ZDI-CAN-30136 ZDI-CAN-30159 ZDI-CAN-30160 ZDI-CAN-30161 ZDI-CAN-30163 ZDI-CAN-30164 ZDI-CAN-30165 ZDI-CAN-30168 (* Security fix *)
Where Find 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-i586-3_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_64-3_slack15.0.txz
Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/extra/tigervnc/tigervnc-1.16.2-i686-3.txz
Updated packages for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/extra/tigervnc/tigervnc-1.16.2-x86_64-3.txz
MD5 Signatures
Slackware 15.0 package:
eaf51937d37bdf8d1204ac5a74859506 tigervnc-1.16.2-i586-3_slack15.0.txz
Slackware x86_64 15.0 package:
34af31b00f6c9f3d094a35a337ffc7eb tigervnc-1.16.2-x86_64-3_slack15.0.txz
Slackware -current package:
81605676b5d7d65e596513d54cbd7733 tigervnc-1.16.2-i686-3.txz
Slackware x86_64 -current package:
6a74733c7d334054aa701fde5750fa6e tigervnc-1.16.2-x86_64-3.txz
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Installation Instructions
Installation instructions: Upgrade the package as root: # upgradepkg tigervnc-1.16.2-i586-3_slack15.0.txz
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