- Update to version 22.1.4

* xwayland: Aggregate scroll axis events to fix kinetic scrolling
  * Forbid server grabs by non-WM on *rootless* XWayland
  * xkb: Avoid length-check failure on empty strings.
  * ci: remove redundant slash in libxcvt repository url
  * dix: Skip more code in SetRootClip for ROOT_CLIP_INPUT_ONLY
  * dix: Fix overzealous caching of ResourceClientBits()
  * xwayland: Prevent Xserver grabs with rootless
  * xwayland: Delay wl_surface destruction
  * build: Bump wayland requirement to 1.18
  * xwayland: set tag on our surfaces
  * xwayland: Clear the "xwl-window" tag on unrealize
  * xwayland: correct the type for the discrete scroll events
  * xkb: fix some possible memleaks in XkbGetKbdByName
  * xkb: length-check XkbGetKbdByName before accessing the fields
  * xkb: length-check XkbListComponents before accessing the fields
  * xkb: proof GetCountedString against request length attacks
- supersedes security patches:
  * U_xkb-fix-some-possible-memleaks-in-XkbGetKbdByName.patch
  * U_xkb-proof-GetCountedString-against-request-length-at.patch

OBS-URL: https://build.opensuse.org/package/show/X11:XOrg/xwayland?expand=0&rev=33
This commit is contained in:
Stefan Dirsch 2022-10-20 12:00:58 +00:00 committed by Git OBS Bridge
parent e62daa6f30
commit c2484d7746
8 changed files with 28 additions and 93 deletions

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@ -1,56 +0,0 @@
From 18f91b950e22c2a342a4fbc55e9ddf7534a707d2 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Wed, 13 Jul 2022 11:23:09 +1000
Subject: [PATCH] xkb: fix some possible memleaks in XkbGetKbdByName
GetComponentByName returns an allocated string, so let's free that if we
fail somewhere.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
---
xkb/xkb.c | 26 ++++++++++++++++++++------
1 file changed, 20 insertions(+), 6 deletions(-)
Index: xwayland-22.1.3/xkb/xkb.c
===================================================================
--- xwayland-22.1.3.orig/xkb/xkb.c
+++ xwayland-22.1.3/xkb/xkb.c
@@ -5941,18 +5941,32 @@ ProcXkbGetKbdByName(ClientPtr client)
xkb = dev->key->xkbInfo->desc;
status = Success;
str = (unsigned char *) &stuff[1];
- if (GetComponentSpec(&str, TRUE, &status)) /* keymap, unsupported */
- return BadMatch;
+ {
+ char *keymap = GetComponentSpec(&str, TRUE, &status); /* keymap, unsupported */
+ if (keymap) {
+ free(keymap);
+ return BadMatch;
+ }
+ }
names.keycodes = GetComponentSpec(&str, TRUE, &status);
names.types = GetComponentSpec(&str, TRUE, &status);
names.compat = GetComponentSpec(&str, TRUE, &status);
names.symbols = GetComponentSpec(&str, TRUE, &status);
names.geometry = GetComponentSpec(&str, TRUE, &status);
- if (status != Success)
+ if (status == Success) {
+ len = str - ((unsigned char *) stuff);
+ if ((XkbPaddedSize(len) / 4) != stuff->length)
+ status = BadLength;
+ }
+
+ if (status != Success) {
+ free(names.keycodes);
+ free(names.types);
+ free(names.compat);
+ free(names.symbols);
+ free(names.geometry);
return status;
- len = str - ((unsigned char *) stuff);
- if ((XkbPaddedSize(len) / 4) != stuff->length)
- return BadLength;
+ }
CHK_MASK_LEGAL(0x01, stuff->want, XkbGBN_AllComponentsMask);
CHK_MASK_LEGAL(0x02, stuff->need, XkbGBN_AllComponentsMask);

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@ -1,31 +0,0 @@
From 11beef0b7f1ed290348e45618e5fa0d2bffcb72e Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Tue, 5 Jul 2022 12:06:20 +1000
Subject: [PATCH] xkb: proof GetCountedString against request length attacks
GetCountedString did a check for the whole string to be within the
request buffer but not for the initial 2 bytes that contain the length
field. A swapped client could send a malformed request to trigger a
swaps() on those bytes, writing into random memory.
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
---
xkb/xkb.c | 5 +++++
1 file changed, 5 insertions(+)
Index: xwayland-22.1.3/xkb/xkb.c
===================================================================
--- xwayland-22.1.3.orig/xkb/xkb.c
+++ xwayland-22.1.3/xkb/xkb.c
@@ -5138,6 +5138,11 @@ _GetCountedString(char **wire_inout, Cli
CARD16 len;
wire = *wire_inout;
+
+ if (client->req_len <
+ bytes_to_int32(wire + 2 - (char *) client->requestBuffer))
+ return BadValue;
+
len = *(CARD16 *) wire;
if (client->swapped) {
swaps(&len);

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@ -1,3 +0,0 @@
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size 1272440

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3
xwayland-22.1.4.tar.xz Normal file
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@ -0,0 +1,3 @@
version https://git-lfs.github.com/spec/v1
oid sha256:5c39bdd77444c3fa7a0e2ef317ae69ddde89a901dc8914dbc8eac39a9313512a
size 1273552

BIN
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@ -1,3 +1,27 @@
-------------------------------------------------------------------
Thu Oct 20 11:50:17 UTC 2022 - Stefan Dirsch <sndirsch@suse.com>
- Update to version 22.1.4
* xwayland: Aggregate scroll axis events to fix kinetic scrolling
* Forbid server grabs by non-WM on *rootless* XWayland
* xkb: Avoid length-check failure on empty strings.
* ci: remove redundant slash in libxcvt repository url
* dix: Skip more code in SetRootClip for ROOT_CLIP_INPUT_ONLY
* dix: Fix overzealous caching of ResourceClientBits()
* xwayland: Prevent Xserver grabs with rootless
* xwayland: Delay wl_surface destruction
* build: Bump wayland requirement to 1.18
* xwayland: set tag on our surfaces
* xwayland: Clear the "xwl-window" tag on unrealize
* xwayland: correct the type for the discrete scroll events
* xkb: fix some possible memleaks in XkbGetKbdByName
* xkb: length-check XkbGetKbdByName before accessing the fields
* xkb: length-check XkbListComponents before accessing the fields
* xkb: proof GetCountedString against request length attacks
- supersedes security patches:
* U_xkb-fix-some-possible-memleaks-in-XkbGetKbdByName.patch
* U_xkb-proof-GetCountedString-against-request-length-at.patch
------------------------------------------------------------------- -------------------------------------------------------------------
Wed Oct 19 11:19:40 UTC 2022 - Stefan Dirsch <sndirsch@suse.com> Wed Oct 19 11:19:40 UTC 2022 - Stefan Dirsch <sndirsch@suse.com>

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@ -24,7 +24,7 @@
%endif %endif
Name: xwayland Name: xwayland
Version: 22.1.3 Version: 22.1.4
Release: 0 Release: 0
URL: http://xorg.freedesktop.org/ URL: http://xorg.freedesktop.org/
Summary: X Summary: X
@ -33,8 +33,6 @@ Group: System/X11/Servers/XF86_4
Source0: %{url}/archive/individual/xserver/%{name}-%{version}.tar.xz Source0: %{url}/archive/individual/xserver/%{name}-%{version}.tar.xz
Source1: %{url}/archive/individual/xserver/%{name}-%{version}.tar.xz.sig Source1: %{url}/archive/individual/xserver/%{name}-%{version}.tar.xz.sig
Source2: xwayland.keyring Source2: xwayland.keyring
Patch1204412: U_xkb-proof-GetCountedString-against-request-length-at.patch
Patch1204416: U_xkb-fix-some-possible-memleaks-in-XkbGetKbdByName.patch
BuildRequires: meson BuildRequires: meson
BuildRequires: ninja BuildRequires: ninja
BuildRequires: pkgconfig BuildRequires: pkgconfig