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annotate compression/unzip/CVE-2014-9913.patch @ 967:e6b9c687d094

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kde/kcompletion: initial import, closes #1794
author David Demelier <markand@malikania.fr>
date Tue, 27 Aug 2019 21:27:00 +0200
parents 8c4366128400
children
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8c4366128400 compression/unzip: initial import, closes #1553
David Demelier <markand@malikania.fr>
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1 From: "Steven M. Schweda" <sms@antinode.info>
8c4366128400 compression/unzip: initial import, closes #1553
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2 Subject: Fix CVE-2014-9913, buffer overflow in unzip
8c4366128400 compression/unzip: initial import, closes #1553
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3 Bug: https://sourceforge.net/p/infozip/bugs/27/
8c4366128400 compression/unzip: initial import, closes #1553
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4 Bug-Debian: https://bugs.debian.org/847485
8c4366128400 compression/unzip: initial import, closes #1553
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5 Bug-Ubuntu: https://launchpad.net/bugs/387350
8c4366128400 compression/unzip: initial import, closes #1553
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6 X-Debian-version: 6.0-21
8c4366128400 compression/unzip: initial import, closes #1553
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7
8c4366128400 compression/unzip: initial import, closes #1553
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8 --- a/list.c
8c4366128400 compression/unzip: initial import, closes #1553
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9 +++ b/list.c
8c4366128400 compression/unzip: initial import, closes #1553
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10 @@ -339,7 +339,18 @@
8c4366128400 compression/unzip: initial import, closes #1553
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11 G.crec.compression_method == ENHDEFLATED) {
8c4366128400 compression/unzip: initial import, closes #1553
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12 methbuf[5] = dtype[(G.crec.general_purpose_bit_flag>>1) & 3];
8c4366128400 compression/unzip: initial import, closes #1553
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13 } else if (methnum >= NUM_METHODS) {
8c4366128400 compression/unzip: initial import, closes #1553
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14 - sprintf(&methbuf[4], "%03u", G.crec.compression_method);
8c4366128400 compression/unzip: initial import, closes #1553
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15 + /* 2013-02-26 SMS.
8c4366128400 compression/unzip: initial import, closes #1553
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16 + * http://sourceforge.net/p/infozip/bugs/27/ CVE-2014-9913.
8c4366128400 compression/unzip: initial import, closes #1553
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17 + * Unexpectedly large compression methods overflow
8c4366128400 compression/unzip: initial import, closes #1553
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18 + * &methbuf[]. Use the old, three-digit decimal format
8c4366128400 compression/unzip: initial import, closes #1553
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19 + * for values which fit. Otherwise, sacrifice the
8c4366128400 compression/unzip: initial import, closes #1553
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20 + * colon, and use four-digit hexadecimal.
8c4366128400 compression/unzip: initial import, closes #1553
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21 + */
8c4366128400 compression/unzip: initial import, closes #1553
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22 + if (G.crec.compression_method <= 999) {
8c4366128400 compression/unzip: initial import, closes #1553
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23 + sprintf( &methbuf[ 4], "%03u", G.crec.compression_method);
8c4366128400 compression/unzip: initial import, closes #1553
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24 + } else {
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25 + sprintf( &methbuf[ 3], "%04X", G.crec.compression_method);
8c4366128400 compression/unzip: initial import, closes #1553
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26 + }
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27 }
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28
8c4366128400 compression/unzip: initial import, closes #1553
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29 #if 0 /* GRR/Euro: add this? */