gnu/packages/patches/unzip-CVE-2014-9636.patch

   1 Copied from Fedora.
   2
   3 http://pkgs.fedoraproject.org/cgit/unzip.git/plain/unzip-6.0-overflow.patch?id=d18f821e
   4
   5 diff --git a/extract.c b/extract.c
   6 index a0a4929..9ef80b3 100644
   7 --- a/extract.c
   8 +++ b/extract.c
   9 @@ -2214,6 +2214,7 @@ static int test_compr_eb(__G__ eb, eb_size, compr_offset, test_uc_ebdata)
  10      ulg eb_ucsize;
  11      uch *eb_ucptr;
  12      int r;
  13 +    ush method;
  14
  15      if (compr_offset < 4)                /* field is not compressed: */
  16          return PK_OK;                    /* do nothing and signal OK */
  17 @@ -2223,6 +2224,12 @@ static int test_compr_eb(__G__ eb, eb_size, compr_offset, test_uc_ebdata)
  18           eb_size <= (compr_offset + EB_CMPRHEADLEN)))
  19          return IZ_EF_TRUNC;               /* no compressed data! */
  20
  21 +    method = makeword(eb + (EB_HEADSIZE + compr_offset));
  22 +    if ((method == STORED) && (eb_size != compr_offset + EB_CMPRHEADLEN + eb_ucsize))
  23 +        return PK_ERR;            /* compressed & uncompressed
  24 +                                   * should match in STORED
  25 +                                   * method */
  26 +
  27      if (
  28  #ifdef INT_16BIT
  29          (((ulg)(extent)eb_ucsize) != eb_ucsize) ||