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Slackware 15.0 xorg-server Critical Use-After-Free & Overflow Patch

slackware
Calendar Grey October 29, 2025
Dist Slackware Esm H88
New xorg-server packages for Slackware 15.0 address critical security issues and vulnerabilities. Update advised.
New xorg-server packages are available for Slackware 15.0 and -current to fix security issues

Summary

Here are the details from the Slackware 15.0 ChangeLog: patches/packages/xorg-server-1.20.14-i586-18_slack15.0.txz: Rebuilt. This update fixes security issues: Use-after-free in XPresentNotify structures creation. Use-after-free in Xkb client resource removal. Value overflow in Xkb extension XkbSetCompatMap(). These issues were found by Jan-Niklas Sohn working with Trend Micro Zero Day Initiative. For more information, see: https://lists.x.org/archives/xorg-announce/2025-October/003635.html https://www.cve.org/CVERecord?id=CVE-2025-62229 https://www.cve.org/CVERecord?id=CVE-2025-62230 https://www.cve.org/CVERecord?id=CVE-2025-62231 (* Security fix *) patches/packages/xorg-server-xephyr-1.20.14-i586-18_slack15.0.txz: Rebuilt. patches/packages/xorg-server-xnest-1.20.14-i586-18_slack15.0.txz: Rebuilt. patches/packages/xorg-server-xvfb-1.20.14-i586-18_slack15.0.txz: Rebuilt. patches/packages/xorg-server-xwayland-21.1.4-i586-16_slack15.0.txz:

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Topics%20covered

Topics Covered

security advisory important slackware Xorg server use-after-free value overflow

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://www.slackware.com/ for additional mirror sites near you.
Updated packages for Slackware 15.0: ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/xorg-server-1.20.14-i586-18_slack15.0.txz ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/xorg-server-xephyr-1.20.14-i586-18_slack15.0.txz ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/xorg-server-xnest-1.20.14-i586-18_slack15.0.txz ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/xorg-server-xvfb-1.20.14-i586-18_slack15.0.txz ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/xorg-server-xwayland-21.1.4-i586-16_slack15.0.txz
Updated packages for Slackware x86_64 15.0: ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/xorg-server-1.20...

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MD5 Signatures

Slackware 15.0 packages: 3c6cf60ad2c1897c707111c2746db541 xorg-server-1.20.14-i586-18_slack15.0.txz 6dd742c1d1fc775bc4eed5d2d0b46180 xorg-server-xephyr-1.20.14-i586-18_slack15.0.txz eb4d9bd11f731357811648b2395c8a35 xorg-server-xnest-1.20.14-i586-18_slack15.0.txz 4ecdb86d226f1989620d35ba26b2dc10 xorg-server-xvfb-1.20.14-i586-18_slack15.0.txz 8927c0245aa078335118b3fdbcbd1324 xorg-server-xwayland-21.1.4-i586-16_slack15.0.txz
Slackware x86_64 15.0 packages: dba9e24a379d7708c4d42370f139b611 xorg-server-1.20.14-x86_64-18_slack15.0.txz 9f47c58055c9c9345439ef55f93792f4 xorg-server-xephyr-1.20.14-x86_64-18_slack15.0.txz 8ae939b55f981da4bd47e92d95ffa385 xorg-server-xnest-1.20.14-x86_64-18_slack15.0.txz aac975997d6766b126bfed17579a3799 xorg-server-xvfb-1.20.14-x86_64-18_slack15.0.txz a7335b5746dcccc84ec1061dfea03f33 xorg-server-xwayland-21.1.4-x86_64-16_slack15.0.txz
Slackware -current packages: 5c8f6f43521bfed8f6a592c8ed21e280 x/xorg-server-21.1.20-i686-1.txz e625c0da6a33d84d2c7de75f7e79f5ae x/xorg-server-xephyr-21.1.20-i686-1.txz cd34a6f736e045e763aa2347a4a28d13 x/xorg-server-xnest-21.1.20-i686-1.txz 58f905f8a8a41e3be0b9e90955a5027f x/xorg-server-xvfb-21.1.20-i686-1.txz 394e96bdfa6d55afe3459a38de81ffe9 x/xorg-server-xwayland-24.1.9-i686-1.txz
Slackware x86_64 -current packages: cd0a996ecab7cd0d0cc340324f260cb3 x/xorg-server-21.1.20-x86_64-1.txz 2ef509cfa80a02ac977eedf495a2a23e x/xorg-server-xephyr-21.1.20-x86_64-1.txz babe19f4898ad6a53f6eb52005aa0934 x/xorg-server-xnest-21.1.20-x86_64-1.txz 136eafbc4115bff5aa50eec6d5fb6b51 x/xorg-server-xvfb-21.1.20-x86_64-1.txz 2da4278a7b0d51a18f8eac670494b7b1 x/xorg-server-xwayland-24.1.9-x86_64-1.txz

Severity
important
Lowest
Low
Medium
High
Critical

Topics%20covered

Topics Covered

security advisory important slackware Xorg server use-after-free value overflow

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Installation Instructions

Installation instructions: Upgrade the packages as root: # upgradepkg xorg-server-*.txz

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