import tigervnc-1.12.0-5.el9_1.1

SOURCES/xorg-x11-server-Xi-fix-potential-use-after-free-in-DeepCopyPointerCl.patch

@@ -0,0 +1,35 @@
+From 7150ba655c0cc08fa6ded309b81265bb672f2869 Mon Sep 17 00:00:00 2001
+From: Peter Hutterer <peter.hutterer@who-t.net>
+Date: Wed, 25 Jan 2023 11:41:40 +1000
+Subject: [PATCH xserver] Xi: fix potential use-after-free in
+ DeepCopyPointerClasses
+
+CVE-2023-0494, ZDI-CAN 19596
+
+This vulnerability was discovered by:
+Jan-Niklas Sohn working with Trend Micro Zero Day Initiative
+
+Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
+---
+ Xi/exevents.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/Xi/exevents.c b/Xi/exevents.c
+index 217baa9561..dcd4efb3bc 100644
+--- a/Xi/exevents.c
++++ b/Xi/exevents.c
+@@ -619,8 +619,10 @@ DeepCopyPointerClasses(DeviceIntPtr from, DeviceIntPtr to)
+             memcpy(to->button->xkb_acts, from->button->xkb_acts,
+                    sizeof(XkbAction));
+         }
+-        else
++        else {
+             free(to->button->xkb_acts);
++            to->button->xkb_acts = NULL;
++        }
+ 
+         memcpy(to->button->labels, from->button->labels,
+                from->button->numButtons * sizeof(Atom));
+-- 
+2.39.0
+

SPECS/tigervnc.spec

@@ -5,7 +5,7 @@
 
 Name:           tigervnc
 Version:        1.12.0
-Release:        4%{?dist}
+Release:        5%{?dist}.1
 Summary:        A TigerVNC remote display system
 
 %global _hardened_build 1
@@ -35,6 +35,9 @@ Patch100:       tigervnc-xserver120.patch
 # 1326867 - [RHEL7.3] GLX applications in an Xvnc session fails to start
 Patch101:       0001-rpath-hack.patch
 
+# CVE-2023-0494 tigervnc: xorg-x11-server: DeepCopyPointerClasses use-after-free leads to privilege elevation
+Patch110:       xorg-x11-server-Xi-fix-potential-use-after-free-in-DeepCopyPointerCl.patch
+
 BuildRequires:  make
 BuildRequires:  gcc-c++
 BuildRequires:  libX11-devel, automake, autoconf, libtool, gettext, gettext-autopoint
@@ -158,6 +161,7 @@ for all in `find . -type f -perm -001`; do
 done
 %patch100 -p1 -b .xserver120-rebased
 %patch101 -p1 -b .rpath
+%patch110 -p1 -b .Xi-fix-potential-use-after-free-in-DeepCopyPointerCl.patch
 popd
 
 %patch1 -p1 -b .use-gnome-as-default-session
@@ -345,6 +349,10 @@ fi
 %ghost %verify(not md5 size mtime) %{_sharedstatedir}/selinux/%{selinuxtype}/active/modules/200/%{modulename}
 
 %changelog
+* Mon Feb 06 2023 Jan Grulich <jgrulich@redhat.com> - 1.12.0-5
+- xorg-x11-server: DeepCopyPointerClasses use-after-free leads to privilege elevation
+  Resolves: bz#2167060
+
 * Tue May 31 2022 Jan Grulich <jgrulich@redhat.com> - 1.12.0-4
 - Add BR: libXdamage, libXfixes, libXrandr
   Resolves: bz#2091833