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Index: php5-5.3.3/ext/fileinfo/libmagic/cdf.c
===================================================================
--- php5-5.3.3.orig/ext/fileinfo/libmagic/cdf.c 2014-07-18 11:05:27.000000000 +0200
+++ php5-5.3.3/ext/fileinfo/libmagic/cdf.c 2014-07-18 11:05:27.000000000 +0200
@@ -322,9 +322,17 @@
cdf_read_short_sector(const cdf_stream_t *sst, void *buf, size_t offs,
size_t len, const cdf_header_t *h, cdf_secid_t id)
{
- assert((size_t)CDF_SHORT_SEC_SIZE(h) == len);
+ size_t ss = CDF_SHORT_SEC_SIZE(h);
+ size_t pos = CDF_SHORT_SEC_POS(h, id);
+ assert(ss == len);
+ if (pos + len > CDF_SEC_SIZE(h) * sst->sst_len) {
+ DPRINTF(("Out of bounds read %" SIZE_T_FORMAT "u > %"
+ SIZE_T_FORMAT "u\n",
+ pos + len, CDF_SEC_SIZE(h) * sst->sst_len));
+ return -1;
+ }
(void)memcpy(((char *)buf) + offs,
- ((const char *)sst->sst_tab) + CDF_SHORT_SEC_POS(h, id), len);
+ ((const char *)sst->sst_tab) + pos, len);
return len;
}
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