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Red Hat Bugzilla – Attachment 704824 Details for
Bug 862413
CVE-2012-5195 perl: heap buffer overrun flaw may lead to arbitrary code execution
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[patch]
Amendment for 5.10
0001-Do-not-wrap-number-of-bytes-to-copy-silently.patch (text/plain), 905 bytes, created by
Petr Pisar
on 2013-03-04 09:20:50 UTC
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Description:
Amendment for 5.10
Filename:
MIME Type:
Creator:
Petr Pisar
Created:
2013-03-04 09:20:50 UTC
Size:
905 bytes
patch
obsolete
>From c08f4e55737a3e905b5a30f9eb72d4f8beaa292e Mon Sep 17 00:00:00 2001 >From: =?UTF-8?q?Petr=20P=C3=ADsa=C5=99?= <ppisar@redhat.com> >Date: Tue, 4 Dec 2012 17:30:17 +0100 >Subject: [PATCH] Do not wrap number of bytes to copy silently > >32-bit x86 architecture has IV_MAX 2 less than I32_MAX. This allows to >initialize less bytes than requested (repeat counter 2^32-1..2^32+1 is >affected). This patch changes the silent wrap to noisy croak. > >See <https://bugzilla.redhat.com/show_bug.cgi?id=720644>. >--- > pp.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > >diff --git a/pp.c b/pp.c >index 28bbfe8..460e410 100644 >--- a/pp.c >+++ b/pp.c >@@ -1490,7 +1490,7 @@ PP(pp_repeat) > if (SvUOK(sv)) { > const UV uv = SvUV(sv); > if (uv > IV_MAX) >- count = IV_MAX; /* The best we can do? */ >+ Perl_croak_nocontext("%s", PL_memory_wrap); > else > count = uv; > } else { >-- >1.7.11.7 >
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