user/oniguruma: patch for CVE-2019-13224 and 13225 (#155)

1 files changed, 69 insertions, 0 deletions

diff --git a/user/oniguruma/CVE-2019-13225.patch b/user/oniguruma/CVE-2019-13225.patch
new file mode 100644
index 000000000..26e296d8d
--- /dev/null
+++ b/user/oniguruma/CVE-2019-13225.patch
@@ -0,0 +1,69 @@
+From c509265c5f6ae7264f7b8a8aae1cfa5fc59d108c Mon Sep 17 00:00:00 2001
+From: "K.Kosako" <kosako@sofnec.co.jp>
+Date: Thu, 27 Jun 2019 14:11:55 +0900
+Subject: [PATCH] Fix CVE-2019-13225: problem in converting if-then-else
+ pattern to bytecode.
+
+---
+ src/regcomp.c | 25 +++++++++++++++++--------
+ 1 file changed, 17 insertions(+), 8 deletions(-)
+
+diff --git a/src/regcomp.c b/src/regcomp.c
+index c2c04a4..ff3431f 100644
+--- a/src/regcomp.c
++++ b/src/regcomp.c
+@@ -1307,8 +1307,9 @@ compile_length_bag_node(BagNode* node, regex_t* reg)
+         len += tlen;
+       }
+ 
++      len += SIZE_OP_JUMP + SIZE_OP_ATOMIC_END;
++
+       if (IS_NOT_NULL(Else)) {
+-        len += SIZE_OP_JUMP;
+         tlen = compile_length_tree(Else, reg);
+         if (tlen < 0) return tlen;
+         len += tlen;
+@@ -1455,7 +1456,7 @@ compile_bag_node(BagNode* node, regex_t* reg, ScanEnv* env)
+ 
+   case BAG_IF_ELSE:
+     {
+-      int cond_len, then_len, jump_len;
++      int cond_len, then_len, else_len, jump_len;
+       Node* cond = NODE_BAG_BODY(node);
+       Node* Then = node->te.Then;
+       Node* Else = node->te.Else;
+@@ -1472,8 +1473,7 @@ compile_bag_node(BagNode* node, regex_t* reg, ScanEnv* env)
+       else
+         then_len = 0;
+ 
+-      jump_len = cond_len + then_len + SIZE_OP_ATOMIC_END;
+-      if (IS_NOT_NULL(Else)) jump_len += SIZE_OP_JUMP;
++      jump_len = cond_len + then_len + SIZE_OP_ATOMIC_END + SIZE_OP_JUMP;
+ 
+       r = add_op(reg, OP_PUSH);
+       if (r != 0) return r;
+@@ -1490,11 +1490,20 @@ compile_bag_node(BagNode* node, regex_t* reg, ScanEnv* env)
+       }
+ 
+       if (IS_NOT_NULL(Else)) {
+-        int else_len = compile_length_tree(Else, reg);
+-        r = add_op(reg, OP_JUMP);
+-        if (r != 0) return r;
+-        COP(reg)->jump.addr = else_len + SIZE_INC_OP;
++        else_len = compile_length_tree(Else, reg);
++        if (else_len < 0) return else_len;
++      }
++      else
++        else_len = 0;
+ 
++      r = add_op(reg, OP_JUMP);
++      if (r != 0) return r;
++      COP(reg)->jump.addr = SIZE_OP_ATOMIC_END + else_len + SIZE_INC_OP;
++
++      r = add_op(reg, OP_ATOMIC_END);
++      if (r != 0) return r;
++
++      if (IS_NOT_NULL(Else)) {
+         r = compile_tree(Else, reg, env);
+       }
+     }