slackware-current/patches/source/xorg-server-xwayland/CVE-2024-31081.patch
Patrick J Volkerding d6e7dd0417 Wed Apr 3 22:22:06 UTC 2024
patches/packages/xorg-server-1.20.14-x86_64-12_slack15.0.txz:  Rebuilt.
  This update fixes security issues:
  Heap buffer overread/data leakage in ProcXIGetSelectedEvents.
  Heap buffer overread/data leakage in ProcXIPassiveGrabDevice.
  Heap buffer overread/data leakage in ProcAppleDRICreatePixmap.
  Use-after-free in ProcRenderAddGlyphs.
  For more information, see:
    https://lists.x.org/archives/xorg-announce/2024-April/003497.html
    https://www.cve.org/CVERecord?id=CVE-2024-31080
    https://www.cve.org/CVERecord?id=CVE-2024-31081
    https://www.cve.org/CVERecord?id=CVE-2024-31082
    https://www.cve.org/CVERecord?id=CVE-2024-31083
  (* Security fix *)
patches/packages/xorg-server-xephyr-1.20.14-x86_64-12_slack15.0.txz:  Rebuilt.
patches/packages/xorg-server-xnest-1.20.14-x86_64-12_slack15.0.txz:  Rebuilt.
patches/packages/xorg-server-xvfb-1.20.14-x86_64-12_slack15.0.txz:  Rebuilt.
patches/packages/xorg-server-xwayland-21.1.4-x86_64-11_slack15.0.txz:  Rebuilt.
  This update fixes security issues:
  Heap buffer overread/data leakage in ProcXIGetSelectedEvents.
  Heap buffer overread/data leakage in ProcXIPassiveGrabDevice.
  Use-after-free in ProcRenderAddGlyphs.
  For more information, see:
    https://lists.x.org/archives/xorg-announce/2024-April/003497.html
    https://www.cve.org/CVERecord?id=CVE-2024-31080
    https://www.cve.org/CVERecord?id=CVE-2024-31081
    https://www.cve.org/CVERecord?id=CVE-2024-31083
  (* Security fix *)
2024-04-04 13:30:42 +02:00

43 lines
1.3 KiB
Diff

From 3e77295f888c67fc7645db5d0c00926a29ffecee Mon Sep 17 00:00:00 2001
From: Alan Coopersmith <alan.coopersmith@oracle.com>
Date: Fri, 22 Mar 2024 18:56:27 -0700
Subject: [PATCH] Xi: ProcXIPassiveGrabDevice needs to use unswapped length to
send reply
CVE-2024-31081
Fixes: d220d6907 ("Xi: add GrabButton and GrabKeysym code.")
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1463>
---
Xi/xipassivegrab.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/Xi/xipassivegrab.c b/Xi/xipassivegrab.c
index c9ac2f8553..896233bec2 100644
--- a/Xi/xipassivegrab.c
+++ b/Xi/xipassivegrab.c
@@ -93,6 +93,7 @@ ProcXIPassiveGrabDevice(ClientPtr client)
GrabParameters param;
void *tmp;
int mask_len;
+ uint32_t length;
REQUEST(xXIPassiveGrabDeviceReq);
REQUEST_FIXED_SIZE(xXIPassiveGrabDeviceReq,
@@ -247,9 +248,11 @@ ProcXIPassiveGrabDevice(ClientPtr client)
}
}
+ /* save the value before SRepXIPassiveGrabDevice swaps it */
+ length = rep.length;
WriteReplyToClient(client, sizeof(rep), &rep);
if (rep.num_modifiers)
- WriteToClient(client, rep.length * 4, modifiers_failed);
+ WriteToClient(client, length * 4, modifiers_failed);
out:
free(modifiers_failed);
--
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