slackware-current/patches/source/xorg-server-xwayland/CVE-2022-46344.patch
Patrick J Volkerding b5eac9957b Wed Dec 14 21:19:34 UTC 2022
patches/packages/mozilla-firefox-102.6.0esr-x86_64-1_slack15.0.txz:  Upgraded.
  This update contains security fixes and improvements.
  For more information, see:
    https://www.mozilla.org/en-US/firefox/102.6.0/releasenotes/
    https://www.mozilla.org/en-US/security/advisories/mfsa2022-52/
    https://www.cve.org/CVERecord?id=CVE-2022-46880
    https://www.cve.org/CVERecord?id=CVE-2022-46872
    https://www.cve.org/CVERecord?id=CVE-2022-46881
    https://www.cve.org/CVERecord?id=CVE-2022-46874
    https://www.cve.org/CVERecord?id=CVE-2022-46875
    https://www.cve.org/CVERecord?id=CVE-2022-46882
    https://www.cve.org/CVERecord?id=CVE-2022-46878
  (* Security fix *)
patches/packages/mozilla-thunderbird-102.6.0-x86_64-1_slack15.0.txz:  Upgraded.
  This release contains security fixes and improvements.
  For more information, see:
    https://www.mozilla.org/en-US/thunderbird/102.6.0/releasenotes/
    https://www.mozilla.org/en-US/security/advisories/mfsa2022-53/
    https://www.cve.org/CVERecord?id=CVE-2022-46880
    https://www.cve.org/CVERecord?id=CVE-2022-46872
    https://www.cve.org/CVERecord?id=CVE-2022-46881
    https://www.cve.org/CVERecord?id=CVE-2022-46874
    https://www.cve.org/CVERecord?id=CVE-2022-46875
    https://www.cve.org/CVERecord?id=CVE-2022-46882
    https://www.cve.org/CVERecord?id=CVE-2022-46878
  (* Security fix *)
patches/packages/xorg-server-1.20.14-x86_64-5_slack15.0.txz:  Rebuilt.
  This release fixes 6 recently reported security vulnerabilities in
  various extensions.
  For more information, see:
    https://lists.x.org/archives/xorg-announce/2022-December/003302.html
    https://www.cve.org/CVERecord?id=CVE-2022-46340
    https://www.cve.org/CVERecord?id=CVE-2022-46341
    https://www.cve.org/CVERecord?id=CVE-2022-46342
    https://www.cve.org/CVERecord?id=CVE-2022-46343
    https://www.cve.org/CVERecord?id=CVE-2022-46344
    https://www.cve.org/CVERecord?id=CVE-2022-4283
  (* Security fix *)
patches/packages/xorg-server-xephyr-1.20.14-x86_64-5_slack15.0.txz:  Rebuilt.
patches/packages/xorg-server-xnest-1.20.14-x86_64-5_slack15.0.txz:  Rebuilt.
patches/packages/xorg-server-xvfb-1.20.14-x86_64-5_slack15.0.txz:  Rebuilt.
patches/packages/xorg-server-xwayland-21.1.4-x86_64-4_slack15.0.txz:  Rebuilt.
  This release fixes 6 recently reported security vulnerabilities in
  various extensions.
  For more information, see:
    https://lists.x.org/archives/xorg-announce/2022-December/003302.html
    https://www.cve.org/CVERecord?id=CVE-2022-46340
    https://www.cve.org/CVERecord?id=CVE-2022-46341
    https://www.cve.org/CVERecord?id=CVE-2022-46342
    https://www.cve.org/CVERecord?id=CVE-2022-46343
    https://www.cve.org/CVERecord?id=CVE-2022-46344
    https://www.cve.org/CVERecord?id=CVE-2022-4283
  (* Security fix *)
2022-12-15 13:30:52 +01:00

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From 8f454b793e1f13c99872c15f0eed1d7f3b823fe8 Mon Sep 17 00:00:00 2001
From: Peter Hutterer <peter.hutterer@who-t.net>
Date: Tue, 29 Nov 2022 13:26:57 +1000
Subject: [PATCH] Xi: avoid integer truncation in length check of
ProcXIChangeProperty
This fixes an OOB read and the resulting information disclosure.
Length calculation for the request was clipped to a 32-bit integer. With
the correct stuff->num_items value the expected request size was
truncated, passing the REQUEST_FIXED_SIZE check.
The server then proceeded with reading at least stuff->num_items bytes
(depending on stuff->format) from the request and stuffing whatever it
finds into the property. In the process it would also allocate at least
stuff->num_items bytes, i.e. 4GB.
The same bug exists in ProcChangeProperty and ProcXChangeDeviceProperty,
so let's fix that too.
CVE-2022-46344, ZDI-CAN 19405
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>
Acked-by: Olivier Fourdan <ofourdan@redhat.com>
---
Xi/xiproperty.c | 4 ++--
dix/property.c | 3 ++-
2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/Xi/xiproperty.c b/Xi/xiproperty.c
index 68c362c62..066ba21fb 100644
--- a/Xi/xiproperty.c
+++ b/Xi/xiproperty.c
@@ -890,7 +890,7 @@ ProcXChangeDeviceProperty(ClientPtr client)
REQUEST(xChangeDevicePropertyReq);
DeviceIntPtr dev;
unsigned long len;
- int totalSize;
+ uint64_t totalSize;
int rc;
REQUEST_AT_LEAST_SIZE(xChangeDevicePropertyReq);
@@ -1130,7 +1130,7 @@ ProcXIChangeProperty(ClientPtr client)
{
int rc;
DeviceIntPtr dev;
- int totalSize;
+ uint64_t totalSize;
unsigned long len;
REQUEST(xXIChangePropertyReq);
diff --git a/dix/property.c b/dix/property.c
index 94ef5a0ec..acce94b2c 100644
--- a/dix/property.c
+++ b/dix/property.c
@@ -205,7 +205,8 @@ ProcChangeProperty(ClientPtr client)
WindowPtr pWin;
char format, mode;
unsigned long len;
- int sizeInBytes, totalSize, err;
+ int sizeInBytes, err;
+ uint64_t totalSize;
REQUEST(xChangePropertyReq);
--
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