3a6d849f81
OBS-URL: https://build.opensuse.org/request/show/457352 OBS-URL: https://build.opensuse.org/package/show/Archiving/unzip?expand=0&rev=39
25 lines
1013 B
Diff
25 lines
1013 B
Diff
Index: unzip60/list.c
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===================================================================
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--- unzip60.orig/list.c
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+++ unzip60/list.c
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@@ -339,7 +339,18 @@ int list_files(__G) /* return PK-type
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G.crec.compression_method == ENHDEFLATED) {
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methbuf[5] = dtype[(G.crec.general_purpose_bit_flag>>1) & 3];
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} else if (methnum >= NUM_METHODS) {
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- sprintf(&methbuf[4], "%03u", G.crec.compression_method);
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+ /* 2013-02-26 SMS.
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+ * http://sourceforge.net/p/infozip/bugs/27/ CVE-2014-9913.
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+ * Unexpectedly large compression methods overflow
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+ * &methbuf[]. Use the old, three-digit decimal format
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+ * for values which fit. Otherwise, sacrifice the
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+ * colon, and use four-digit hexadecimal.
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+ */
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+ if (G.crec.compression_method <= 999) {
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+ sprintf( &methbuf[ 4], "%03u", G.crec.compression_method);
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+ } else {
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+ sprintf( &methbuf[ 3], "%04X", G.crec.compression_method);
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+ }
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}
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#if 0 /* GRR/Euro: add this? */
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