Accepting request 1098803 from home:dirkmueller:Factory
- update to 1.8.6: * InitExt.c: Add bounds checks for extension request, event, & error codes * Fixes CVE-2023-3138: X servers could return values from XQueryExtension that would cause Xlib to write entries out-of-bounds of the arrays to store them, though this would only overwrite other parts of the Display struct, not outside the bounds allocated for that structure. - drop U_InitExt.c-Add-bounds-checks-for-extension-request-ev.patch (upstream) OBS-URL: https://build.opensuse.org/request/show/1098803 OBS-URL: https://build.opensuse.org/package/show/X11:XOrg/libX11?expand=0&rev=104
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@ -1,108 +0,0 @@
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From 304a654a0d57bf0f00d8998185f0360332cfa36c Mon Sep 17 00:00:00 2001
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From: Alan Coopersmith <alan.coopersmith@oracle.com>
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Date: Sat, 10 Jun 2023 16:30:07 -0700
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Subject: [PATCH libX11] InitExt.c: Add bounds checks for extension request,
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event, & error codes
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Fixes CVE-2023-3138: X servers could return values from XQueryExtension
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that would cause Xlib to write entries out-of-bounds of the arrays to
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store them, though this would only overwrite other parts of the Display
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struct, not outside the bounds allocated for that structure.
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Reported-by: Gregory James DUCK <gjduck@gmail.com>
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Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
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---
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src/InitExt.c | 42 ++++++++++++++++++++++++++++++++++++++++++
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1 file changed, 42 insertions(+)
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diff --git a/src/InitExt.c b/src/InitExt.c
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index 4de46f15..afc00a6b 100644
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--- a/src/InitExt.c
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+++ b/src/InitExt.c
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@@ -33,6 +33,18 @@ from The Open Group.
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#include <X11/Xos.h>
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#include <stdio.h>
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+/* The X11 protocol spec reserves events 64 through 127 for extensions */
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+#ifndef LastExtensionEvent
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+#define LastExtensionEvent 127
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+#endif
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+
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+/* The X11 protocol spec reserves requests 128 through 255 for extensions */
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+#ifndef LastExtensionRequest
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+#define FirstExtensionRequest 128
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+#define LastExtensionRequest 255
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+#endif
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+
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+
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/*
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* This routine is used to link a extension in so it will be called
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* at appropriate times.
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@@ -242,6 +254,12 @@ WireToEventType XESetWireToEvent(
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WireToEventType proc) /* routine to call when converting event */
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{
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register WireToEventType oldproc;
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+ if (event_number < 0 ||
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+ event_number > LastExtensionEvent) {
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+ fprintf(stderr, "Xlib: ignoring invalid extension event %d\n",
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+ event_number);
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+ return (WireToEventType)_XUnknownWireEvent;
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+ }
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if (proc == NULL) proc = (WireToEventType)_XUnknownWireEvent;
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LockDisplay (dpy);
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oldproc = dpy->event_vec[event_number];
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@@ -263,6 +281,12 @@ WireToEventCookieType XESetWireToEventCookie(
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)
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{
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WireToEventCookieType oldproc;
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+ if (extension < FirstExtensionRequest ||
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+ extension > LastExtensionRequest) {
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+ fprintf(stderr, "Xlib: ignoring invalid extension opcode %d\n",
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+ extension);
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+ return (WireToEventCookieType)_XUnknownWireEventCookie;
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+ }
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if (proc == NULL) proc = (WireToEventCookieType)_XUnknownWireEventCookie;
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LockDisplay (dpy);
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oldproc = dpy->generic_event_vec[extension & 0x7F];
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@@ -284,6 +308,12 @@ CopyEventCookieType XESetCopyEventCookie(
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)
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{
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CopyEventCookieType oldproc;
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+ if (extension < FirstExtensionRequest ||
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+ extension > LastExtensionRequest) {
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+ fprintf(stderr, "Xlib: ignoring invalid extension opcode %d\n",
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+ extension);
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+ return (CopyEventCookieType)_XUnknownCopyEventCookie;
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+ }
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if (proc == NULL) proc = (CopyEventCookieType)_XUnknownCopyEventCookie;
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LockDisplay (dpy);
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oldproc = dpy->generic_event_copy_vec[extension & 0x7F];
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@@ -305,6 +335,12 @@ EventToWireType XESetEventToWire(
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EventToWireType proc) /* routine to call when converting event */
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{
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register EventToWireType oldproc;
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+ if (event_number < 0 ||
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+ event_number > LastExtensionEvent) {
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+ fprintf(stderr, "Xlib: ignoring invalid extension event %d\n",
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+ event_number);
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+ return (EventToWireType)_XUnknownNativeEvent;
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+ }
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if (proc == NULL) proc = (EventToWireType) _XUnknownNativeEvent;
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LockDisplay (dpy);
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oldproc = dpy->wire_vec[event_number];
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@@ -325,6 +361,12 @@ WireToErrorType XESetWireToError(
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WireToErrorType proc) /* routine to call when converting error */
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{
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register WireToErrorType oldproc = NULL;
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+ if (error_number < 0 ||
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+ error_number > LastExtensionError) {
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+ fprintf(stderr, "Xlib: ignoring invalid extension error %d\n",
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+ error_number);
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+ return (WireToErrorType)_XDefaultWireError;
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+ }
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if (proc == NULL) proc = (WireToErrorType)_XDefaultWireError;
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LockDisplay (dpy);
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if (!dpy->error_vec) {
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--
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2.15.2
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@ -1,3 +0,0 @@
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version https://git-lfs.github.com/spec/v1
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oid sha256:e362c6f03c793171becd1ce2078c64789504c7d7ff48ee40a76ff76b59f6b561
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size 1811288
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3
libX11-1.8.6.tar.xz
Normal file
3
libX11-1.8.6.tar.xz
Normal file
@ -0,0 +1,3 @@
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version https://git-lfs.github.com/spec/v1
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oid sha256:59535b7cc6989ba806a022f7e8533b28c4397b9d86e9d07b6df0c0703fa25cc9
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size 1859460
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@ -1,3 +1,17 @@
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-------------------------------------------------------------------
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Sat Jul 15 14:44:18 UTC 2023 - Dirk Müller <dmueller@suse.com>
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- update to 1.8.6:
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* InitExt.c: Add bounds checks for extension request,
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event, & error codes
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* Fixes CVE-2023-3138: X servers could return values from
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XQueryExtension that would cause Xlib to write entries
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out-of-bounds of the arrays to store them, though this
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would only overwrite other parts of the Display
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struct, not outside the bounds allocated for that
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structure.
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- drop U_InitExt.c-Add-bounds-checks-for-extension-request-ev.patch (upstream)
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-------------------------------------------------------------------
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Mon Jun 12 13:14:03 UTC 2023 - Stefan Dirsch <sndirsch@suse.com>
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@ -17,7 +17,7 @@
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Name: libX11
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Version: 1.8.5
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Version: 1.8.6
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Release: 0
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Summary: Core X11 protocol client library
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License: MIT
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@ -32,7 +32,6 @@ Patch1: p_xlib_skip_ext_env.diff
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# PATCH-FIX-UPSTREAM en-locales.diff fdo#48596 bnc#388711 -- Add missing data for more en locales
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Patch2: en-locales.diff
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Patch3: u_no-longer-crash-in-XVisualIDFromVisual.patch
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Patch1212102: U_InitExt.c-Add-bounds-checks-for-extension-request-ev.patch
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BuildRequires: fdupes
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BuildRequires: libtool
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BuildRequires: pkgconfig
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@ -136,7 +135,6 @@ test -f nls/ja.S90/XLC_LOCALE.pre && exit 1
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%patch1
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%patch2
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%patch3 -p1
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%patch1212102 -p1
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%build
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%configure \
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