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Commit c9d81fc3 authored by Mike DePaulo's avatar Mike DePaulo
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Merge pull request #20 from sunweaver/pr/fix-CVE-2015-3418

dix: Allow zero-height PutImage requests (fix for X.Org's CVE-2015-3418).
parents 7ccbb073 dba779d9
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nx-X11/programs/Xserver/dix/dispatch.c
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......@@ -2071,7 +2071,7 @@ ProcPutImage(register ClientPtr client)
tmpImage = (char *)&stuff[1];
lengthProto = length;
if (lengthProto >= (INT32_MAX / stuff->height))
if (stuff->height != 0 && lengthProto >= (INT32_MAX / stuff->height))
return BadLength;
if (((((lengthProto * stuff->height) + (unsigned)3) >> 2) +
......
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