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Red Hat Bugzilla – Attachment 685479 Details for
Bug 902998
CVE-2013-0211 libarchive: read buffer overflow on 64-bit systems
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[patch]
proposed upstream patch
libarchive-CVE-2013-0211-proposed.patch (text/plain), 827 bytes, created by
Vincent Danen
on 2013-01-22 22:05:51 UTC
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Description:
proposed upstream patch
Filename:
MIME Type:
Creator:
Vincent Danen
Created:
2013-01-22 22:05:51 UTC
Size:
827 bytes
patch
obsolete
>Index: /usr/src/contrib/libarchive/libarchive/archive_write.c >=================================================================== >--- /usr/src/contrib/libarchive/libarchive/archive_write.c (revision 245100) >+++ /usr/src/contrib/libarchive/libarchive/archive_write.c (working copy) >@@ -665,8 +665,13 @@ > _archive_write_data(struct archive *_a, const void *buff, size_t s) > { > struct archive_write *a = (struct archive_write *)_a; >+ size_t max_write = INTMAX; >+ > archive_check_magic(&a->archive, ARCHIVE_WRITE_MAGIC, > ARCHIVE_STATE_DATA, "archive_write_data"); >+ /* In particular, this catches attempts to pass negative values. */ >+ if (s > max_write) >+ s = max_write; > archive_clear_error(&a->archive); > return ((a->format_write_data)(a, buff, s)); > }
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bug 902998
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