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Red Hat Bugzilla – Attachment 308679 Details for
Bug 450518
CVE-2008-2152 OpenOffice.org overflow possible on allocation
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[patch]
oo2 patch from caolan
workspace.mhu18.patch (text/plain), 805 bytes, created by
Mark J. Cox
on 2008-06-09 11:54:25 UTC
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Description:
oo2 patch from caolan
Filename:
MIME Type:
Creator:
Mark J. Cox
Created:
2008-06-09 11:54:25 UTC
Size:
805 bytes
patch
obsolete
>Index: porting/sal/rtl/source/alloc_global.c >diff -u porting/sal/rtl/source/alloc_global.c:1.3 porting/sal/rtl/source/alloc_global.c:1.3.288.1 >--- porting/sal/rtl/source/alloc_global.c:1.3 Tue May 9 00:24:51 2006 >+++ porting/sal/rtl/source/alloc_global.c Mon May 19 00:59:10 2008 >@@ -217,9 +217,15 @@ > int index = (size - 1) >> RTL_MEMALIGN_SHIFT; > OSL_ASSERT(RTL_MEMALIGN >= sizeof(sal_Size)); > >+ if (n >= SAL_MAX_SIZE - (RTL_MEMALIGN + RTL_MEMALIGN - 1)) >+ { >+ /* requested size too large for roundup alignment */ >+ return 0; >+ } >+ > try_alloc: > if (index < RTL_MEMORY_CACHED_LIMIT >> RTL_MEMALIGN_SHIFT) >- addr = (char*)rtl_cache_alloc(g_alloc_table[index]); >+ addr = (char*)rtl_cache_alloc (g_alloc_table[index]); > else > addr = (char*)rtl_arena_alloc (gp_alloc_arena, &size); >
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