update brcm-2.4 b44 bcm47xx support patch, add fixes from #205
[openwrt-10.03/.git] / package / zlib / patches / zlib-1.2.2-CAN-2005-2096.patch
1 Name: CAN-2005-2096 (under review)
2 Description:
3   Buffer overflow in zlib 1.2 and later versions allows remote attackers 
4   to cause a denial of service (crash) via a crafted compressed stream, as 
5   demonstrated using a crafted PNG file.
6   
7 References:
8   * DEBIAN:DSA-740
9     http://www.debian.org/security/2005/dsa-740
10   * REDHAT:RHSA-2005:569
11     http://www.redhat.com/support/errata/RHSA-2005-569.html 
12
13   http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2096
14
15 diff -ruN zlib-1.2.2-old/inftrees.c zlib-1.2.2-new/inftrees.c
16 --- zlib-1.2.2-old/inftrees.c   2004-09-15 16:30:06.000000000 +0200
17 +++ zlib-1.2.2-new/inftrees.c   2005-07-08 21:18:58.000000000 +0200
18 @@ -134,7 +134,7 @@
19          left -= count[len];
20          if (left < 0) return -1;        /* over-subscribed */
21      }
22 -    if (left > 0 && (type == CODES || (codes - count[0] != 1)))
23 +    if (left > 0 && (type == CODES || max != 1))
24          return -1;                      /* incomplete set */
25  
26      /* generate offsets into symbol table for each length for sorting */