fe6c4f8171
Unzip was not updated from on 20 April 2009 but contain serious issues already fixed in Linux distributions. Termux should implement these fixes as well. This will fix: * CVE-2014-8139 * CVE-2014-8140 * CVE-2014-8141 * CVE-2014-9636 * CVE-2015-7696 * CVE-2015-7697 Patches were obtained from https://git.archlinux.org/svntogit/packages.git/tree/trunk?h=packages/unzip.
24 lines
1.1 KiB
Diff
24 lines
1.1 KiB
Diff
--- a/extract.c 2009-03-14 02:32:52.000000000 +0100
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+++ b/extract.c 2014-12-05 22:43:13.000000000 +0100
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@@ -2221,10 +2234,17 @@ static int test_compr_eb(__G__ eb, eb_si
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if (compr_offset < 4) /* field is not compressed: */
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return PK_OK; /* do nothing and signal OK */
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+ /* Return no/bad-data error status if any problem is found:
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+ * 1. eb_size is too small to hold the uncompressed size
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+ * (eb_ucsize). (Else extract eb_ucsize.)
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+ * 2. eb_ucsize is zero (invalid). 2014-12-04 SMS.
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+ * 3. eb_ucsize is positive, but eb_size is too small to hold
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+ * the compressed data header.
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+ */
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if ((eb_size < (EB_UCSIZE_P + 4)) ||
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- ((eb_ucsize = makelong(eb+(EB_HEADSIZE+EB_UCSIZE_P))) > 0L &&
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- eb_size <= (compr_offset + EB_CMPRHEADLEN)))
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- return IZ_EF_TRUNC; /* no compressed data! */
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+ ((eb_ucsize = makelong( eb+ (EB_HEADSIZE+ EB_UCSIZE_P))) == 0L) ||
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+ ((eb_ucsize > 0L) && (eb_size <= (compr_offset + EB_CMPRHEADLEN))))
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+ return IZ_EF_TRUNC; /* no/bad compressed data! */
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if (
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#ifdef INT_16BIT
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