X-Git-Url: http://www.privoxy.org/gitweb/?p=privoxy.git;a=blobdiff_plain;f=pcre%2Fpcre.c;h=1e602df4399fe39bc6c7d8e99bb77fb72fa4367c;hp=5149f8dad7dc2ed1d423e3257dc47e2ea088e819;hb=777f23fd554b0811d16bc2323ced6fe9dc0cff72;hpb=c75584ebcc79f939fb4ec9c8f842cef6692640c7

diff --git a/pcre/pcre.c b/pcre/pcre.c
index 5149f8da..1e602df4 100644
--- a/pcre/pcre.c
+++ b/pcre/pcre.c
@@ -2486,6 +2486,7 @@ const uschar *ptr;
 compile_data compile_block;
 int brastack[BRASTACK_SIZE];
 uschar bralenstack[BRASTACK_SIZE];
+const size_t pattern_length = strlen(pattern);
 
 #ifdef DEBUG
 uschar *code_base, *code_end;
@@ -3011,6 +3012,17 @@ while ((c = *(++ptr)) != 0)
       /* Ordinary character or single-char escape */
 
       runlength++;
+
+      if ((const char *)ptr > pattern + pattern_length)
+        {
+        *errorptr = "internal error";
+        goto PCRE_ERROR_RETURN;
+        }
+      if ((int)ptr[1] >= tables_length - ctypes_offset)
+        {
+        *errorptr = ERR6;
+        goto PCRE_ERROR_RETURN;
+        }
       }
 
     /* This "while" is the end of the "do" above. */