Home / mailings [slackware-security] xorg-server (SSA:2026-280-01)
Posted on 08 October 2026
Slackware Security[slackware-security] xorg-server (SSA:2026-280-01)
New xorg-server packages are available for Slackware 15.0 and -current to
fix security issues.
Here are the details from the Slackware 15.0 ChangeLog:
+--------------------------+
patches/packages/xorg-server-1.20.14-i586-22_slack15.0.txz: Rebuilt.
This update fixes security issues:
XKB SetGeometry TextDoodad Double Free.
Present Extension Cross-Window Notify Use-After-Free.
GLX RenderLarge Heap Buffer Overflow.
XKB ResizeKeyType Numeric Truncation.
XFixes Pointer Barrier Event List Buffer Overflow.
XKB ChangeKeycodeRange Heap Out-of-Bounds Write.
RandR ChangeProviderProperty Heap Buffer Overflow.
XInput2 PassiveUngrabDevice Modifier Out-of-Bounds Write.
XKB SetMap Key Width/Action Count Desync Out-Of-Bounds Read.
For more information, see:
https://lists.x.org/archives/xorg-announce/2026-October/003747.html
https://www.cve.org/CVERecord?id=CVE-2026-88812
https://www.cve.org/CVERecord?id=CVE-2026-93515
https://www.cve.org/CVERecord?id=CVE-2026-93517
https://www.cve.org/CVERecord?id=CVE-2026-93518
https://www.cve.org/CVERecord?id=CVE-2026-93519
https://www.cve.org/CVERecord?id=CVE-2026-93520
https://www.cve.org/CVERecord?id=CVE-2026-93521
https://www.cve.org/CVERecord?id=CVE-2026-93523
https://www.cve.org/CVERecord?id=CVE-2026-93524
(* Security fix *)
patches/packages/xorg-server-xephyr-1.20.14-i586-22_slack15.0.txz: Rebuilt.
patches/packages/xorg-server-xnest-1.20.14-i586-22_slack15.0.txz: Rebuilt.
patches/packages/xorg-server-xvfb-1.20.14-i586-22_slack15.0.txz: Rebuilt.
patches/packages/xorg-server-xwayland-21.1.4-i586-20_slack15.0.txz: Rebuilt.
This update fixes security issues:
XKB SetGeometry TextDoodad Double Free.
Present Extension Cross-Window Notify Use-After-Free.
GLX RenderLarge Heap Buffer Overflow.
XKB ResizeKeyType Numeric Truncation.
XFixes Pointer Barrier Event List Buffer Overflow.
XKB ChangeKeycodeRange Heap Out-of-Bounds Write.
RandR ChangeProviderProperty Heap Buffer Overflow.
XInput2 PassiveUngrabDevice Modifier Out-of-Bounds Write.
XKB SetMap Key Width/Action Count Desync Out-Of-Bounds Read.
For more information, see:
https://lists.x.org/archives/xorg-announce/2026-October/003747.html
https://www.cve.org/CVERecord?id=CVE-2026-88812
https://www.cve.org/CVERecord?id=CVE-2026-93515
https://www.cve.org/CVERecord?id=CVE-2026-93517
https://www.cve.org/CVERecord?id=CVE-2026-93518
https://www.cve.org/CVERecord?id=CVE-2026-93519
https://www.cve.org/CVERecord?id=CVE-2026-93520
https://www.cve.org/CVERecord?id=CVE-2026-93521
https://www.cve.org/CVERecord?id=CVE-2026-93523
https://www.cve.org/CVERecord?id=CVE-2026-93524
(* 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 packages for Slackware 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/xorg-server-1.20.14-i586-22_slack15.0.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/xorg-server-xephyr-1.20.14-i586-22_slack15.0.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/xorg-server-xnest-1.20.14-i586-22_slack15.0.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/xorg-server-xvfb-1.20.14-i586-22_slack15.0.txz
ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/xorg-server-xwayland-21.1.4-i586-20_slack15.0.txz
Updated packages for Slackware x86_64 15.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/xorg-server-1.20.14-x86_64-22_slack15.0.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/xorg-server-xephyr-1.20.14-x86_64-22_slack15.0.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/xorg-server-xnest-1.20.14-x86_64-22_slack15.0.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/xorg-server-xvfb-1.20.14-x86_64-22_slack15.0.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/xorg-server-xwayland-21.1.4-x86_64-20_slack15.0.txz
Updated packages for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/x/xorg-server-21.1.25-i686-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/x/xorg-server-xephyr-21.1.25-i686-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/x/xorg-server-xnest-21.1.25-i686-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/x/xorg-server-xvfb-21.1.25-i686-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/x/xorg-server-xwayland-24.1.14-i686-1.txz
Updated packages for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/x/xorg-server-21.1.25-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/x/xorg-server-xephyr-21.1.25-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/x/xorg-server-xnest-21.1.25-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/x/xorg-server-xvfb-21.1.25-x86_64-1.txz
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/x/xorg-server-xwayland-24.1.14-x86_64-1.txz
MD5 signatures:
+-------------+
Slackware 15.0 packages:
52d88c4e63d2cc0cb438bae6f323a7b6 xorg-server-1.20.14-i586-22_slack15.0.txz
b48383da8b90d79ef298d60982f2808e xorg-server-xephyr-1.20.14-i586-22_slack15.0.txz
196a72d7376711e5c776ab23eb6d1f66 xorg-server-xnest-1.20.14-i586-22_slack15.0.txz
28d6a0c95895cf54ab87361acee49bce xorg-server-xvfb-1.20.14-i586-22_slack15.0.txz
d083662e99fc579bedd0f5ebc330e7c3 xorg-server-xwayland-21.1.4-i586-20_slack15.0.txz
Slackware x86_64 15.0 packages:
27b13d72e557df0665ea2cf03aec34b6 xorg-server-1.20.14-x86_64-22_slack15.0.txz
ed2c90a3adb59794cf23974a6d306b60 xorg-server-xephyr-1.20.14-x86_64-22_slack15.0.txz
abd316c85e5126ddabfdefc0647004b4 xorg-server-xnest-1.20.14-x86_64-22_slack15.0.txz
e2def6d2a480cd1dbc470fa36130b654 xorg-server-xvfb-1.20.14-x86_64-22_slack15.0.txz
d3dc0675f13fdd1331a98812210a509b xorg-server-xwayland-21.1.4-x86_64-20_slack15.0.txz
Slackware -current packages:
c0a0961b2211c15d77b8b2e320f2d0b0 x/xorg-server-21.1.25-i686-1.txz
083c89878e7698b2d39c792f23a0ab0f x/xorg-server-xephyr-21.1.25-i686-1.txz
6723d378beb2bb2454bb512cf06f43ea x/xorg-server-xnest-21.1.25-i686-1.txz
dc57a08ea2ab6f8c16cb8b772d9b0a4e x/xorg-server-xvfb-21.1.25-i686-1.txz
e1714e7d4f12dbf753bd4c510a2473a8 x/xorg-server-xwayland-24.1.14-i686-1.txz
Slackware x86_64 -current packages:
9833f5bd83f2ff989e5f824427a1a7a3 x/xorg-server-21.1.25-x86_64-1.txz
69e2ef28c2cf96a0f5760d3dddbde2a3 x/xorg-server-xephyr-21.1.25-x86_64-1.txz
0c405ab3fdbd6df4bf8bedd2349099e5 x/xorg-server-xnest-21.1.25-x86_64-1.txz
463581274ddaa64a458c60f6227f2993 x/xorg-server-xvfb-21.1.25-x86_64-1.txz
78e1a4780522ca814d54d59f18158832 x/xorg-server-xwayland-24.1.14-x86_64-1.txz
Installation instructions:
+------------------------+
Upgrade the packages as root:
# upgradepkg xorg-server-*.txz
+-----+
Slackware Linux Security Team
http://slackware.com/gpg-key
security@slackware.com
