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Copied from Fedora.
http://pkgs.fedoraproject.org/cgit/unzip.git/plain/unzip-6.0-overflow-long-fsize.patch?id=d18f821e
diff --git a/list.c b/list.c
index f7359c3..4c3d703 100644
--- a/list.c
+++ b/list.c
@@ -97,7 +97,7 @@ int list_files(__G) /* return PK-type error code */
{
int do_this_file=FALSE, cfactor, error, error_in_archive=PK_COOL;
#ifndef WINDLL
- char sgn, cfactorstr[10];
+ char sgn, cfactorstr[13];
int longhdr=(uO.vflag>1);
#endif
int date_format;
@@ -339,7 +339,19 @@ int list_files(__G) /* return PK-type error code */
G.crec.compression_method == ENHDEFLATED) {
methbuf[5] = dtype[(G.crec.general_purpose_bit_flag>>1) & 3];
} else if (methnum >= NUM_METHODS) {
- sprintf(&methbuf[4], "%03u", G.crec.compression_method);
+ /* 2013-02-26 SMS.
+ * http://sourceforge.net/tracker/?func=detail
+ * &aid=2861648&group_id=118012&atid=679786
+ * Unexpectedly large compression methods overflow
+ * &methbuf[]. Use the old, three-digit decimal format
+ * for values which fit. Otherwise, sacrifice the
+ * colon, and use four-digit hexadecimal.
+ */
+ if (G.crec.compression_method <= 999) {
+ sprintf( &methbuf[ 4], "%03u", G.crec.compression_method);
+ } else {
+ sprintf( &methbuf[ 3], "%04X", G.crec.compression_method);
+ }
}
#if 0 /* GRR/Euro: add this? */
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