lede-packages-rs

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008-cve-2014-9913-unzip-buffer-overflow.patch (1336B)

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