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vip-ire |
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From 1803228597e82218a8c105e67975bc50e6f5bf0d Mon Sep 17 00:00:00 2001 |
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From: Remi Collet <remi@php.net> |
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Date: Wed, 22 Oct 2014 15:37:04 +0200 |
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Subject: [PATCH] Fix bug #68283: fileinfo: out-of-bounds read in elf note |
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headers |
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Upstream commit |
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https://github.com/file/file/commit/39c7ac1106be844a5296d3eb5971946cc09ffda0 |
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CVE -2014-3710 |
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--- |
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ext/fileinfo/libmagic/readelf.c | 7 +++++++ |
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1 file changed, 7 insertions(+) |
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diff --git a/ext/fileinfo/libmagic/readelf.c b/ext/fileinfo/libmagic/readelf.c |
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index 1c3845f..bb6f70f 100644 |
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--- a/ext/fileinfo/libmagic/readelf.c |
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+++ b/ext/fileinfo/libmagic/readelf.c |
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@@ -372,6 +372,13 @@ donote(struct magic_set *ms, void *vbuf, size_t offset, size_t size, |
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#endif |
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uint32_t namesz, descsz; |
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+ if (xnh_sizeof + offset > size) { |
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+ /* |
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+ * We're out of note headers. |
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+ */ |
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+ return xnh_sizeof + offset; |
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+ } |
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+ |
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(void)memcpy(xnh_addr, &nbuf[offset], xnh_sizeof); |
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offset += xnh_sizeof; |
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-- |
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2.1.0 |
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