mirrors/poky
1
0
Fork 0
mirror of https://git.yoctoproject.org/poky synced 2026-02-20 08:29:42 +01:00
Code Issues Packages Projects Releases Wiki Activity

xwayland: fix CVE-2023-5367

Browse Source 
(From OE-Core rev: 9c21b08c18414bb61abebcbbb8704946ea288a7b)

Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
This commit is contained in:
Lee Chee Yang
2023-11-30 20:28:01 +08:00
committed by Steve Sakoman
parent 006b4b976c
commit 82e76d21dc
2 changed files with 88 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

85
meta/recipes-graphics/xwayland/xwayland/CVE-2023-5367.patch Normal file
View File

@@ -0,0 +1,85 @@
CVE: CVE-2023-5367
Upstream-Status: Backport [ https://gitlab.freedesktop.org/xorg/xserver/-/commit/541ab2ecd41d4d8689e71855d93e492bc554719a ]
Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
From 541ab2ecd41d4d8689e71855d93e492bc554719a Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Tue, 3 Oct 2023 11:53:05 +1000
Subject: [PATCH] Xi/randr: fix handling of PropModeAppend/Prepend
The handling of appending/prepending properties was incorrect, with at
least two bugs: the property length was set to the length of the new
part only, i.e. appending or prepending N elements to a property with P
existing elements always resulted in the property having N elements
instead of N + P.
Second, when pre-pending a value to a property, the offset for the old
values was incorrect, leaving the new property with potentially
uninitalized values and/or resulting in OOB memory writes.
For example, prepending a 3 element value to a 5 element property would
result in this 8 value array:
[N, N, N, ?, ?, P, P, P ] P, P
^OOB write
The XI2 code is a copy/paste of the RandR code, so the bug exists in
both.
CVE-2023-5367, ZDI-CAN-22153
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/xiproperty.c | 4 ++--
randr/rrproperty.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/Xi/xiproperty.c b/Xi/xiproperty.c
index 066ba21fba..d315f04d0e 100644
--- a/Xi/xiproperty.c
+++ b/Xi/xiproperty.c
@@ -730,7 +730,7 @@ XIChangeDeviceProperty(DeviceIntPtr dev, Atom property, Atom type,
XIDestroyDeviceProperty(prop);
return BadAlloc;
}
- new_value.size = len;
+ new_value.size = total_len;
new_value.type = type;
new_value.format = format;
@@ -747,7 +747,7 @@ XIChangeDeviceProperty(DeviceIntPtr dev, Atom property, Atom type,
case PropModePrepend:
new_data = new_value.data;
old_data = (void *) (((char *) new_value.data) +
- (prop_value->size * size_in_bytes));
+ (len * size_in_bytes));
break;
}
if (new_data)
diff --git a/randr/rrproperty.c b/randr/rrproperty.c
index c2fb9585c6..25469f57b2 100644
--- a/randr/rrproperty.c
+++ b/randr/rrproperty.c
@@ -209,7 +209,7 @@ RRChangeOutputProperty(RROutputPtr output, Atom property, Atom type,
RRDestroyOutputProperty(prop);
return BadAlloc;
}
- new_value.size = len;
+ new_value.size = total_len;
new_value.type = type;
new_value.format = format;
@@ -226,7 +226,7 @@ RRChangeOutputProperty(RROutputPtr output, Atom property, Atom type,
case PropModePrepend:
new_data = new_value.data;
old_data = (void *) (((char *) new_value.data) +
- (prop_value->size * size_in_bytes));
+ (len * size_in_bytes));
break;
}
if (new_data)
--
GitLab

4
meta/recipes-graphics/xwayland/xwayland_22.1.8.bb
View File

@@ -9,7 +9,9 @@ HOMEPAGE = "https://fedoraproject.org/wiki/Changes/XwaylandStandalone"
LICENSE = "MIT"
LIC_FILES_CHKSUM = "file://COPYING;md5=5df87950af51ac2c5822094553ea1880"
SRC_URI = "https://www.x.org/archive/individual/xserver/xwayland-${PV}.tar.xz"
SRC_URI = "https://www.x.org/archive/individual/xserver/xwayland-${PV}.tar.xz \
file://CVE-2023-5367.patch \
"
SRC_URI[sha256sum] = "d11eeee73290b88ea8da42a7d9350dedfaba856ce4ae44e58c045ad9ecaa2f73"
UPSTREAM_CHECK_REGEX = "xwayland-(?P<pver>\d+(\.(?!90\d)\d+)+)\.tar"