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- U_boo1194181-001-xkb-swap-XkbSetDeviceInfo-and-XkbSetDeviceInfoCheck.patch

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* Out-Of-Bounds Access in CheckSetDeviceIndicators()
    (CVE-2022-2320, ZDI-CAN-16070, bsc#1194181)
- U_boo1194179-001-xkb-rename-xkb_h-to-xkb-procs_h.patch,
  U_boo1194179-002-xkb-add-request-length-validation-for-XkbSetGeometry.patch
  * Out-Of-Bounds Access in _CheckSetSections() 
    (CVE-2022-2319, ZDI-CAN-16062, bsc#1194179)

OBS-URL: https://build.opensuse.org/package/show/X11:XOrg/xorg-x11-server?expand=0&rev=827
This commit is contained in:
Stefan Dirsch 2022-07-12 13:29:47 +00:00 committed by Git OBS Bridge
parent b764ccdbd2
commit 70daf87975
5 changed files with 473 additions and 0 deletions
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155
U_boo1194179-001-xkb-rename-xkb_h-to-xkb-procs_h.patch Normal file
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@ -0,0 +1,155 @@
From 04a2689e96b42330718517b2a3950aa2bb1ca017 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Mon, 4 Jul 2022 09:42:53 +1000
Subject: [PATCH] xkb: rename xkb.h to xkb-procs.h
This header merely defines the various protocol request handlers, so
let's rename it to something less generic and remove its include from
all the files that don't actually need it (which is almost all of them).
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Olivier Fourdan <ofourdan@redhat.com>
---
test/test_xkb.c | 1 -
xkb/ddxLoad.c | 1 -
xkb/{xkb.h => xkb-procs.h} | 0
xkb/xkb.c | 2 +-
xkb/xkbActions.c | 1 -
xkb/xkbEvents.c | 1 -
xkb/xkbInit.c | 1 -
xkb/xkbLEDs.c | 1 -
xkb/xkbSwap.c | 2 +-
xkb/xkbUtils.c | 1 -
xkb/xkbfmisc.c | 1 -
11 files changed, 2 insertions(+), 10 deletions(-)
rename xkb/{xkb.h => xkb-procs.h} (100%)
diff --git a/test/test_xkb.c b/test/test_xkb.c
index f81a7ed65..a13107390 100644
--- a/test/test_xkb.c
+++ b/test/test_xkb.c
@@ -48,7 +48,6 @@
#include "../xkb/xkbgeom.h"
#include <X11/extensions/XKMformat.h>
#include "xkbfile.h"
-#include "../xkb/xkb.h"
#include <assert.h>
#include "tests-common.h"
diff --git a/xkb/ddxLoad.c b/xkb/ddxLoad.c
index f9b7b06d9..2d203ce11 100644
--- a/xkb/ddxLoad.c
+++ b/xkb/ddxLoad.c
@@ -43,7 +43,6 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
#define XKBSRV_NEED_FILE_FUNCS
#include <xkbsrv.h>
#include <X11/extensions/XI.h>
-#include "xkb.h"
#define PRE_ERROR_MSG "\"The XKEYBOARD keymap compiler (xkbcomp) reports:\""
#define ERROR_PREFIX "\"> \""
diff --git a/xkb/xkb.h b/xkb/xkb-procs.h
similarity index 100%
rename from xkb/xkb.h
rename to xkb/xkb-procs.h
diff --git a/xkb/xkb.c b/xkb/xkb.c
index 820cd7166..21c046913 100644
--- a/xkb/xkb.c
+++ b/xkb/xkb.c
@@ -38,7 +38,7 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include "extnsionst.h"
#include "extinit.h"
#include "xace.h"
-#include "xkb.h"
+#include "xkb-procs.h"
#include "protocol-versions.h"
#include <X11/extensions/XI.h>
diff --git a/xkb/xkbActions.c b/xkb/xkbActions.c
index db29091e7..5e9a6b6d6 100644
--- a/xkb/xkbActions.c
+++ b/xkb/xkbActions.c
@@ -38,7 +38,6 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include "exevents.h"
#include "eventstr.h"
#include <xkbsrv.h>
-#include "xkb.h"
#include <ctype.h>
#include "mi.h"
#include "mipointer.h"
diff --git a/xkb/xkbEvents.c b/xkb/xkbEvents.c
index 0bbd66186..f8f65d4a7 100644
--- a/xkb/xkbEvents.c
+++ b/xkb/xkbEvents.c
@@ -39,7 +39,6 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include "exglobals.h"
#include "windowstr.h"
#include <xkbsrv.h>
-#include "xkb.h"
/***====================================================================***/
diff --git a/xkb/xkbInit.c b/xkb/xkbInit.c
index 4108e1b26..de1dd3fe3 100644
--- a/xkb/xkbInit.c
+++ b/xkb/xkbInit.c
@@ -49,7 +49,6 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include "xkbgeom.h"
#include <X11/extensions/XKMformat.h>
#include "xkbfile.h"
-#include "xkb.h"
#define CREATE_ATOM(s) MakeAtom(s,sizeof(s)-1,1)
diff --git a/xkb/xkbLEDs.c b/xkb/xkbLEDs.c
index 5792d9fb7..d4690dad9 100644
--- a/xkb/xkbLEDs.c
+++ b/xkb/xkbLEDs.c
@@ -38,7 +38,6 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include <X11/extensions/XI.h>
#include <xkbsrv.h>
-#include "xkb.h"
/***====================================================================***/
diff --git a/xkb/xkbSwap.c b/xkb/xkbSwap.c
index 50cabb90e..efbdb81c1 100644
--- a/xkb/xkbSwap.c
+++ b/xkb/xkbSwap.c
@@ -36,7 +36,7 @@ THE USE OR PERFORMANCE OF THIS SOFTWARE.
#include <xkbsrv.h>
#include "xkbstr.h"
#include "extnsionst.h"
-#include "xkb.h"
+#include "xkb-procs.h"
/*
* REQUEST SWAPPING
diff --git a/xkb/xkbUtils.c b/xkb/xkbUtils.c
index 8975ade8d..dd089c204 100644
--- a/xkb/xkbUtils.c
+++ b/xkb/xkbUtils.c
@@ -67,7 +67,6 @@ DEALINGS IN THE SOFTWARE.
#define XKBSRV_NEED_FILE_FUNCS
#include <xkbsrv.h>
#include "xkbgeom.h"
-#include "xkb.h"
/***====================================================================***/
diff --git a/xkb/xkbfmisc.c b/xkb/xkbfmisc.c
index 2ecdcd555..fc9197f2d 100644
--- a/xkb/xkbfmisc.c
+++ b/xkb/xkbfmisc.c
@@ -46,7 +46,6 @@
#define XKBSRV_NEED_FILE_FUNCS 1
#include <xkbsrv.h>
#include "xkbgeom.h"
-#include "xkb.h"
unsigned
_XkbKSCheckCase(KeySym ks)
--
GitLab

160
U_boo1194179-002-xkb-add-request-length-validation-for-XkbSetGeometry.patch Normal file
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@ -0,0 +1,160 @@
@@ -, +, @@
---
xkb/xkb.c | 43 ++++++++++++++++++++++++++++++++++++++-----
1 file changed, 38 insertions(+), 5 deletions(-)
Index: xorg-server-21.1.3/xkb/xkb.c
===================================================================
--- xorg-server-21.1.3.orig/xkb/xkb.c
+++ xorg-server-21.1.3/xkb/xkb.c
@@ -5157,7 +5157,7 @@ _GetCountedString(char **wire_inout, Cli
}
static Status
-_CheckSetDoodad(char **wire_inout,
+_CheckSetDoodad(char **wire_inout, xkbSetGeometryReq *req,
XkbGeometryPtr geom, XkbSectionPtr section, ClientPtr client)
{
char *wire;
@@ -5168,6 +5168,9 @@ _CheckSetDoodad(char **wire_inout,
Status status;
dWire = (xkbDoodadWireDesc *) (*wire_inout);
+ if (!_XkbCheckRequestBounds(client, req, dWire, dWire + 1))
+ return BadLength;
+
any = dWire->any;
wire = (char *) &dWire[1];
if (client->swapped) {
@@ -5270,7 +5273,7 @@ _CheckSetDoodad(char **wire_inout,
}
static Status
-_CheckSetOverlay(char **wire_inout,
+_CheckSetOverlay(char **wire_inout, xkbSetGeometryReq *req,
XkbGeometryPtr geom, XkbSectionPtr section, ClientPtr client)
{
register int r;
@@ -5281,6 +5284,9 @@ _CheckSetOverlay(char **wire_inout,
wire = *wire_inout;
olWire = (xkbOverlayWireDesc *) wire;
+ if (!_XkbCheckRequestBounds(client, req, olWire, olWire + 1))
+ return BadLength;
+
if (client->swapped) {
swapl(&olWire->name);
}
@@ -5292,6 +5298,9 @@ _CheckSetOverlay(char **wire_inout,
xkbOverlayKeyWireDesc *kWire;
XkbOverlayRowPtr row;
+ if (!_XkbCheckRequestBounds(client, req, rWire, rWire + 1))
+ return BadLength;
+
if (rWire->rowUnder > section->num_rows) {
client->errorValue = _XkbErrCode4(0x20, r, section->num_rows,
rWire->rowUnder);
@@ -5300,6 +5309,9 @@ _CheckSetOverlay(char **wire_inout,
row = XkbAddGeomOverlayRow(ol, rWire->rowUnder, rWire->nKeys);
kWire = (xkbOverlayKeyWireDesc *) &rWire[1];
for (k = 0; k < rWire->nKeys; k++, kWire++) {
+ if (!_XkbCheckRequestBounds(client, req, kWire, kWire + 1))
+ return BadLength;
+
if (XkbAddGeomOverlayKey(ol, row,
(char *) kWire->over,
(char *) kWire->under) == NULL) {
@@ -5333,6 +5345,9 @@ _CheckSetSections(XkbGeometryPtr geom,
register int r;
xkbRowWireDesc *rWire;
+ if (!_XkbCheckRequestBounds(client, req, sWire, sWire + 1))
+ return BadLength;
+
if (client->swapped) {
swapl(&sWire->name);
swaps(&sWire->top);
@@ -5358,6 +5373,9 @@ _CheckSetSections(XkbGeometryPtr geom,
XkbRowPtr row;
xkbKeyWireDesc *kWire;
+ if (!_XkbCheckRequestBounds(client, req, rWire, rWire + 1))
+ return BadLength;
+
if (client->swapped) {
swaps(&rWire->top);
swaps(&rWire->left);
@@ -5372,6 +5390,9 @@ _CheckSetSections(XkbGeometryPtr geom,
for (k = 0; k < rWire->nKeys; k++) {
XkbKeyPtr key;
+ if (!_XkbCheckRequestBounds(client, req, kWire, kWire + 1))
+ return BadLength;
+
key = XkbAddGeomKey(row);
if (!key)
return BadAlloc;
@@ -5397,7 +5418,7 @@ _CheckSetSections(XkbGeometryPtr geom,
register int d;
for (d = 0; d < sWire->nDoodads; d++) {
- status = _CheckSetDoodad(&wire, geom, section, client);
+ status = _CheckSetDoodad(&wire, req, geom, section, client);
if (status != Success)
return status;
}
@@ -5406,7 +5427,7 @@ _CheckSetSections(XkbGeometryPtr geom,
register int o;
for (o = 0; o < sWire->nOverlays; o++) {
- status = _CheckSetOverlay(&wire, geom, section, client);
+ status = _CheckSetOverlay(&wire, req, geom, section, client);
if (status != Success)
return status;
}
@@ -5440,6 +5461,9 @@ _CheckSetShapes(XkbGeometryPtr geom,
xkbOutlineWireDesc *olWire;
XkbOutlinePtr ol;
+ if (!_XkbCheckRequestBounds(client, req, shapeWire, shapeWire + 1))
+ return BadLength;
+
shape =
XkbAddGeomShape(geom, shapeWire->name, shapeWire->nOutlines);
if (!shape)
@@ -5450,12 +5474,18 @@ _CheckSetShapes(XkbGeometryPtr geom,
XkbPointPtr pt;
xkbPointWireDesc *ptWire;
+ if (!_XkbCheckRequestBounds(client, req, olWire, olWire + 1))
+ return BadLength;
+
ol = XkbAddGeomOutline(shape, olWire->nPoints);
if (!ol)
return BadAlloc;
ol->corner_radius = olWire->cornerRadius;
ptWire = (xkbPointWireDesc *) &olWire[1];
for (p = 0, pt = ol->points; p < olWire->nPoints; p++, pt++) {
+ if (!_XkbCheckRequestBounds(client, req, ptWire, ptWire + 1))
+ return BadLength;
+
pt->x = ptWire[p].x;
pt->y = ptWire[p].y;
if (client->swapped) {
@@ -5561,12 +5591,15 @@ _CheckSetGeom(XkbGeometryPtr geom, xkbSe
return status;
for (i = 0; i < req->nDoodads; i++) {
- status = _CheckSetDoodad(&wire, geom, NULL, client);
+ status = _CheckSetDoodad(&wire, req, geom, NULL, client);
if (status != Success)
return status;
}
for (i = 0; i < req->nKeyAliases; i++) {
+ if (!_XkbCheckRequestBounds(client, req, wire, wire + XkbKeyNameLength))
+ return BadLength;
+
if (XkbAddGeomKeyAlias(geom, &wire[XkbKeyNameLength], wire) == NULL)
return BadAlloc;
wire += 2 * XkbKeyNameLength;

138
U_boo1194181-001-xkb-swap-XkbSetDeviceInfo-and-XkbSetDeviceInfoCheck.patch Normal file
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@ -0,0 +1,138 @@
Index: xorg-server-21.1.3/xkb/xkb.c
===================================================================
--- xorg-server-21.1.3.orig/xkb/xkb.c
+++ xorg-server-21.1.3/xkb/xkb.c
@@ -6551,7 +6551,8 @@ ProcXkbGetDeviceInfo(ClientPtr client)
static char *
CheckSetDeviceIndicators(char *wire,
DeviceIntPtr dev,
- int num, int *status_rtrn, ClientPtr client)
+ int num, int *status_rtrn, ClientPtr client,
+ xkbSetDeviceInfoReq * stuff)
{
xkbDeviceLedsWireDesc *ledWire;
int i;
@@ -6559,6 +6560,11 @@ CheckSetDeviceIndicators(char *wire,
ledWire = (xkbDeviceLedsWireDesc *) wire;
for (i = 0; i < num; i++) {
+ if (!_XkbCheckRequestBounds(client, stuff, ledWire, ledWire + 1)) {
+ *status_rtrn = BadLength;
+ return (char *) ledWire;
+ }
+
if (client->swapped) {
swaps(&ledWire->ledClass);
swaps(&ledWire->ledID);
@@ -6586,6 +6592,11 @@ CheckSetDeviceIndicators(char *wire,
atomWire = (CARD32 *) &ledWire[1];
if (nNames > 0) {
for (n = 0; n < nNames; n++) {
+ if (!_XkbCheckRequestBounds(client, stuff, atomWire, atomWire + 1)) {
+ *status_rtrn = BadLength;
+ return (char *) atomWire;
+ }
+
if (client->swapped) {
swapl(atomWire);
}
@@ -6597,6 +6608,10 @@ CheckSetDeviceIndicators(char *wire,
mapWire = (xkbIndicatorMapWireDesc *) atomWire;
if (nMaps > 0) {
for (n = 0; n < nMaps; n++) {
+ if (!_XkbCheckRequestBounds(client, stuff, mapWire, mapWire + 1)) {
+ *status_rtrn = BadLength;
+ return (char *) mapWire;
+ }
if (client->swapped) {
swaps(&mapWire->virtualMods);
swapl(&mapWire->ctrls);
@@ -6648,11 +6663,6 @@ SetDeviceIndicators(char *wire,
xkbIndicatorMapWireDesc *mapWire;
XkbSrvLedInfoPtr sli;
- if (!_XkbCheckRequestBounds(client, stuff, ledWire, ledWire + 1)) {
- *status_rtrn = BadLength;
- return (char *) ledWire;
- }
-
namec = mapc = statec = 0;
sli = XkbFindSrvLedInfo(dev, ledWire->ledClass, ledWire->ledID,
XkbXI_IndicatorMapsMask);
@@ -6671,10 +6681,6 @@ SetDeviceIndicators(char *wire,
memset((char *) sli->names, 0, XkbNumIndicators * sizeof(Atom));
for (n = 0, bit = 1; n < XkbNumIndicators; n++, bit <<= 1) {
if (ledWire->namesPresent & bit) {
- if (!_XkbCheckRequestBounds(client, stuff, atomWire, atomWire + 1)) {
- *status_rtrn = BadLength;
- return (char *) atomWire;
- }
sli->names[n] = (Atom) *atomWire;
if (sli->names[n] == None)
ledWire->namesPresent &= ~bit;
@@ -6692,10 +6698,6 @@ SetDeviceIndicators(char *wire,
if (ledWire->mapsPresent) {
for (n = 0, bit = 1; n < XkbNumIndicators; n++, bit <<= 1) {
if (ledWire->mapsPresent & bit) {
- if (!_XkbCheckRequestBounds(client, stuff, mapWire, mapWire + 1)) {
- *status_rtrn = BadLength;
- return (char *) mapWire;
- }
sli->maps[n].flags = mapWire->flags;
sli->maps[n].which_groups = mapWire->whichGroups;
sli->maps[n].groups = mapWire->groups;
@@ -6731,13 +6733,17 @@ SetDeviceIndicators(char *wire,
}
static int
-_XkbSetDeviceInfo(ClientPtr client, DeviceIntPtr dev,
+_XkbSetDeviceInfoCheck(ClientPtr client, DeviceIntPtr dev,
xkbSetDeviceInfoReq * stuff)
{
char *wire;
wire = (char *) &stuff[1];
if (stuff->change & XkbXI_ButtonActionsMask) {
+ int sz = stuff->nBtns * SIZEOF(xkbActionWireDesc);
+ if (!_XkbCheckRequestBounds(client, stuff, wire, (char *) wire + sz))
+ return BadLength;
+
if (!dev->button) {
client->errorValue = _XkbErrCode2(XkbErr_BadClass, ButtonClass);
return XkbKeyboardErrorCode;
@@ -6748,13 +6754,13 @@ _XkbSetDeviceInfo(ClientPtr client, Devi
dev->button->numButtons);
return BadMatch;
}
- wire += (stuff->nBtns * SIZEOF(xkbActionWireDesc));
+ wire += sz;
}
if (stuff->change & XkbXI_IndicatorsMask) {
int status = Success;
wire = CheckSetDeviceIndicators(wire, dev, stuff->nDeviceLedFBs,
- &status, client);
+ &status, client, stuff);
if (status != Success)
return status;
}
@@ -6765,8 +6771,8 @@ _XkbSetDeviceInfo(ClientPtr client, Devi
}
static int
-_XkbSetDeviceInfoCheck(ClientPtr client, DeviceIntPtr dev,
- xkbSetDeviceInfoReq * stuff)
+_XkbSetDeviceInfo(ClientPtr client, DeviceIntPtr dev,
+ xkbSetDeviceInfoReq * stuff)
{
char *wire;
xkbExtensionDeviceNotify ed;
@@ -6790,8 +6796,6 @@ _XkbSetDeviceInfoCheck(ClientPtr client,
if (stuff->firstBtn + stuff->nBtns > nBtns)
return BadValue;
sz = stuff->nBtns * SIZEOF(xkbActionWireDesc);
- if (!_XkbCheckRequestBounds(client, stuff, wire, (char *) wire + sz))
- return BadLength;
memcpy((char *) &acts[stuff->firstBtn], (char *) wire, sz);
wire += sz;
ed.reason |= XkbXI_ButtonActionsMask;

11
xorg-x11-server.changes
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@ -1,3 +1,14 @@
-------------------------------------------------------------------
Wed Jul 6 12:21:11 UTC 2022 - Stefan Dirsch <sndirsch@suse.com>
- U_boo1194181-001-xkb-swap-XkbSetDeviceInfo-and-XkbSetDeviceInfoCheck.patch
* Out-Of-Bounds Access in CheckSetDeviceIndicators()
(CVE-2022-2320, ZDI-CAN-16070, bsc#1194181)
- U_boo1194179-001-xkb-rename-xkb_h-to-xkb-procs_h.patch,
U_boo1194179-002-xkb-add-request-length-validation-for-XkbSetGeometry.patch
* Out-Of-Bounds Access in _CheckSetSections()
(CVE-2022-2319, ZDI-CAN-16062, bsc#1194179)
-------------------------------------------------------------------
Tue May 10 13:04:38 UTC 2022 - Dirk Müller <dmueller@suse.com>

9
xorg-x11-server.spec
View File

@ -249,6 +249,12 @@ Patch1950: U_Fix-build-with-gcc-12.patch
Patch1960: u_sync-pci-ids-with-Mesa-22.0.0.patch
#CVE-2022-2320, ZDI-CAN-16070, bsc#1194181
Patch2001: U_boo1194181-001-xkb-swap-XkbSetDeviceInfo-and-XkbSetDeviceInfoCheck.patch
#CVE-2022-2319, ZDI-CAN-16062, bsc#1194179
Patch2101: U_boo1194179-001-xkb-rename-xkb_h-to-xkb-procs_h.patch
Patch2102: U_boo1194179-002-xkb-add-request-length-validation-for-XkbSetGeometry.patch
%description
This package contains the X.Org Server.
@ -407,6 +413,9 @@ sh %{SOURCE92} --verify . %{SOURCE91}
%patch1940 -p1
%patch1950 -p1
%patch1960 -p1
%patch2001 -p1
%patch2101 -p1
%patch2102 -p1
%build
# We have some -z now related errors during X default startup (boo#1197994):