Stefan Dirsch
fec607fe57
* Correct bounds checking in XkbSetNames()
[CVE-2020-14345 / ZDI 11428, boo#1174635]
- U_0002-Fix-XIChangeHierarchy-integer-underflow.patch
* Fix XIChangeHierarchy() integer underflow
[CVE-2020-14346 / ZDI-CAN-11429, boo#1174638]
- U_0003-Fix-XkbSelectEvents-integer-underflow.patch
* Fix XkbSelectEvents() integer underflow
[CVE-2020-14361 / ZDI-CAN 11573, boo#1174910]
- U_0004-Fix-XRecordRegisterClients-Integer-underflow.patch
* Fix XRecordRegisterClients() Integer underflow
[CVE-2020-14362 / ZDI-CAN-11574, boo#1174913]
OBS-URL: https://build.opensuse.org/package/show/X11:XOrg/xorg-x11-server?expand=0&rev=773
32 lines
994 B
Diff
32 lines
994 B
Diff
From c940cc8b6c0a2983c1ec974f1b3f019795dd4cff Mon Sep 17 00:00:00 2001
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From: Matthieu Herrb <matthieu@herrb.eu>
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Date: Tue, 18 Aug 2020 14:49:04 +0200
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Subject: [PATCH 2/4] Fix XIChangeHierarchy() integer underflow
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CVE-2020-14346 / ZDI-CAN-11429
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This vulnerability was discovered by:
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Jan-Niklas Sohn working with Trend Micro Zero Day Initiative
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Signed-off-by: Matthieu Herrb <matthieu@herrb.eu>
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---
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Xi/xichangehierarchy.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/Xi/xichangehierarchy.c b/Xi/xichangehierarchy.c
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index cbdd91258..504defe56 100644
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--- a/Xi/xichangehierarchy.c
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+++ b/Xi/xichangehierarchy.c
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@@ -423,7 +423,7 @@ ProcXIChangeHierarchy(ClientPtr client)
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if (!stuff->num_changes)
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return rc;
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- len = ((size_t)stuff->length << 2) - sizeof(xXIChangeHierarchyReq);
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+ len = ((size_t)client->req_len << 2) - sizeof(xXIChangeHierarchyReq);
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any = (xXIAnyHierarchyChangeInfo *) &stuff[1];
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while (stuff->num_changes--) {
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--
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2.16.4
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