diff -r ad6720734733 -r c1ab501b4751 gzip/gzip.patch
--- a/gzip/gzip.patch	Tue Aug 28 18:54:40 2012 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,194 +0,0 @@
-Security Fix
-
-Index: gzip.c
---- gzip.c.orig	2009-09-26 20:56:02 +0200
-+++ gzip.c	2009-10-07 07:59:53 +0200
-@@ -168,7 +168,7 @@
- DECLARE(uch, inbuf,  INBUFSIZ +INBUF_EXTRA);
- DECLARE(uch, outbuf, OUTBUFSIZ+OUTBUF_EXTRA);
- DECLARE(ush, d_buf,  DIST_BUFSIZE);
--DECLARE(uch, window, 2L*WSIZE);
-+DECLARE(uch, window, 2L*WSIZE + 4096); /* enlarge to avoid crashs due to peeking beyond the buffer end */
- #ifndef MAXSEG_64K
-     DECLARE(ush, tab_prefix, 1L<<BITS);
- #else
-
------------------------------------------------------------------------------
-
-Security Fixes 
-- OOB write        (CVE-2006-4335)
-- Buffer underflow (CVE-2006-4336)
-- Buffer overflow  (CVE-2006-4337)
-- Infinite loop    (CVE-2006-4338)
-
-Index: gzip.h
---- gzip.h.orig	2009-09-26 20:43:28 +0200
-+++ gzip.h	2009-10-07 07:59:53 +0200
-@@ -223,6 +223,8 @@
- extern int to_stdout;      /* output to stdout (-c) */
- extern int save_orig_name; /* set if original name must be saved */
- 
-+#define MIN(a,b) ((a) <= (b) ? (a) : (b))
-+
- #define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf(0))
- #define try_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf(1))
- 
-Index: unlzh.c
---- unlzh.c.orig	2009-09-26 20:20:40 +0200
-+++ unlzh.c	2009-10-07 07:59:53 +0200
-@@ -141,12 +141,17 @@
-     unsigned i, k, len, ch, jutbits, avail, nextcode, mask;
- 
-     for (i = 1; i <= 16; i++) count[i] = 0;
--    for (i = 0; i < (unsigned)nchar; i++) count[bitlen[i]]++;
-+    for (i = 0; i < (unsigned)nchar; i++) {
-+        if (bitlen[i] > 16)
-+            error("Bad table\n");
-+        else
-+            count[bitlen[i]]++;
-+    }
- 
-     start[1] = 0;
-     for (i = 1; i <= 16; i++)
- 	start[i + 1] = start[i] + (count[i] << (16 - i));
--    if ((start[17] & 0xffff) != 0)
-+    if ((start[17] & 0xffff) != 0 || tablebits > 16) /* 16 for weight below */
-       gzip_error ("Bad table\n");
- 
-     jutbits = 16 - tablebits;
-@@ -161,15 +166,15 @@
- 
-     i = start[tablebits + 1] >> jutbits;
-     if (i != 0) {
--	k = 1 << tablebits;
--	while (i != k) table[i++] = 0;
-+	k = MIN(1 << tablebits, DIST_BUFSIZE);
-+	while (i < k) table[i++] = 0;
-     }
- 
-     avail = nchar;
-     mask = (unsigned) 1 << (15 - tablebits);
-     for (ch = 0; ch < (unsigned)nchar; ch++) {
- 	if ((len = bitlen[ch]) == 0) continue;
--	nextcode = start[len] + weight[len];
-+	nextcode = MIN(start[len] + weight[len], DIST_BUFSIZE);
- 	if (len <= (unsigned)tablebits) {
- 	    if ((unsigned) 1 << tablebits < nextcode)
- 	      gzip_error ("Bad table\n");
-@@ -212,7 +217,7 @@
- 	for (i = 0; i < 256; i++) pt_table[i] = c;
-     } else {
- 	i = 0;
--	while (i < n) {
-+	while (i < MIN(n,NPT)) {
- 	    c = bitbuf >> (BITBUFSIZ - 3);
- 	    if (c == 7) {
- 		mask = (unsigned) 1 << (BITBUFSIZ - 1 - 3);
-@@ -224,7 +229,7 @@
- 	    pt_len[i++] = c;
- 	    if (i == i_special) {
- 		c = getbits(2);
--		while (--c >= 0) pt_len[i++] = 0;
-+		while (--c >= 0 && i < NPT) pt_len[i++] = 0;
- 	    }
- 	}
- 	while (i < nn) pt_len[i++] = 0;
-@@ -244,7 +249,7 @@
- 	for (i = 0; i < 4096; i++) c_table[i] = c;
-     } else {
- 	i = 0;
--	while (i < n) {
-+	while (i < MIN(n,NC)) {
- 	    c = pt_table[bitbuf >> (BITBUFSIZ - 8)];
- 	    if (c >= NT) {
- 		mask = (unsigned) 1 << (BITBUFSIZ - 1 - 8);
-@@ -252,14 +257,14 @@
- 		    if (bitbuf & mask) c = right[c];
- 		    else               c = left [c];
- 		    mask >>= 1;
--		} while (c >= NT);
-+		} while (c >= NT && (mask || c != left[c]));
- 	    }
- 	    fillbuf((int) pt_len[c]);
- 	    if (c <= 2) {
- 		if      (c == 0) c = 1;
- 		else if (c == 1) c = getbits(4) + 3;
- 		else             c = getbits(CBIT) + 20;
--		while (--c >= 0) c_len[i++] = 0;
-+		while (--c >= 0 && i < NC) c_len[i++] = 0;
- 	    } else c_len[i++] = c - 2;
- 	}
- 	while (i < NC) c_len[i++] = 0;
-@@ -288,7 +293,7 @@
- 	    if (bitbuf & mask) j = right[j];
- 	    else               j = left [j];
- 	    mask >>= 1;
--	} while (j >= NC);
-+	} while (j >= NC && (mask || j != left[j]));
-     }
-     fillbuf((int) c_len[j]);
-     return j;
-@@ -305,7 +310,7 @@
- 	    if (bitbuf & mask) j = right[j];
- 	    else               j = left [j];
- 	    mask >>= 1;
--	} while (j >= NP);
-+	} while (j >= NP && (mask || j != left[j]));
-     }
-     fillbuf((int) pt_len[j]);
-     if (j != 0) j = ((unsigned) 1 << (j - 1)) + getbits((int) (j - 1));
-@@ -352,7 +357,7 @@
-     while (--j >= 0) {
- 	buffer[r] = buffer[i];
- 	i = (i + 1) & (DICSIZ - 1);
--	if (++r == count) return r;
-+	if (++r >= count) return r;
-     }
-     for ( ; ; ) {
- 	c = decode_c();
-@@ -362,14 +367,14 @@
- 	}
- 	if (c <= UCHAR_MAX) {
- 	    buffer[r] = c;
--	    if (++r == count) return r;
-+	    if (++r >= count) return r;
- 	} else {
- 	    j = c - (UCHAR_MAX + 1 - THRESHOLD);
- 	    i = (r - decode_p() - 1) & (DICSIZ - 1);
- 	    while (--j >= 0) {
- 		buffer[r] = buffer[i];
- 		i = (i + 1) & (DICSIZ - 1);
--		if (++r == count) return r;
-+		if (++r >= count) return r;
- 	    }
- 	}
-     }
-Index: unpack.c
---- unpack.c.orig	2009-09-26 20:43:28 +0200
-+++ unpack.c	2009-10-07 07:59:53 +0200
-@@ -22,7 +22,6 @@
- #include "gzip.h"
- #include "crypt.h"
- 
--#define MIN(a,b) ((a) <= (b) ? (a) : (b))
- /* The arguments must not have side effects. */
- 
- #define MAX_BITLEN 25
-@@ -146,7 +145,7 @@
- 	/* Remember where the literals of this length start in literal[] : */
- 	lit_base[len] = base;
- 	/* And read the literals: */
--	for (n = leaves[len]; n > 0; n--) {
-+	for (n = leaves[len]; n > 0 && base < LITERALS; n--) {
- 	    literal[base++] = (uch)get_byte();
- 	}
-     }
-@@ -182,7 +181,7 @@
-     prefixp = &prefix_len[1<<peek_bits];
-     for (len = 1; len <= peek_bits; len++) {
- 	int prefixes = leaves[len] << (peek_bits-len); /* may be 0 */
--	while (prefixes--) *--prefixp = (uch)len;
-+	while (prefixes-- && prefixp > prefix_len) *--prefixp = (uch)len;
-     }
-     /* The length of all other codes is unknown: */
-     while (prefixp > prefix_len) *--prefixp = 0;