Fix two crashes in the BER decoder found with afl.

One a read at 0 of an empty vector, the other causing allocation of an
arbitrary amount of memory.

56 files changed, 378 insertions, 0 deletions

diff --git a/src/tests/data/fuzz/x509/afl_000.pem b/src/tests/data/fuzz/x509/afl_000.pem
new file mode 100644
index 000000000..5bd3a97d0
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_000.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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+bW1EDp3zdHSo1TRJ6V6e6bR64eVaH4QwnNOfpSXY
+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_001.pem b/src/tests/data/fuzz/x509/afl_001.pem
new file mode 100644
index 000000000..9bf1fcecb
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_001.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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+bW1EDp3zdHSo1TRJ6V6e6bR64eVaH4QwnNOfpSXY
+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_002.pem b/src/tests/data/fuzz/x509/afl_002.pem
new file mode 100644
index 000000000..fbadfd772
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_002.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_003.pem b/src/tests/data/fuzz/x509/afl_003.pem
new file mode 100644
index 000000000..86041ccfd
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_003.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_004.pem b/src/tests/data/fuzz/x509/afl_004.pem
new file mode 100644
index 000000000..4c818d9c3
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_004.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_005.pem b/src/tests/data/fuzz/x509/afl_005.pem
new file mode 100644
index 000000000..fa101ff3a
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_005.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_006.pem b/src/tests/data/fuzz/x509/afl_006.pem
new file mode 100644
index 000000000..af95cabfb
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_006.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_007.pem b/src/tests/data/fuzz/x509/afl_007.pem
new file mode 100644
index 000000000..30145a8fa
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_007.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_008.pem b/src/tests/data/fuzz/x509/afl_008.pem
new file mode 100644
index 000000000..5be654ce4
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_008.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_009.pem b/src/tests/data/fuzz/x509/afl_009.pem
new file mode 100644
index 000000000..7434298ea
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_009.pem
@@ -0,0 +1,14 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_010.pem b/src/tests/data/fuzz/x509/afl_010.pem
new file mode 100644
index 000000000..2640094e5
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_010.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_011.pem b/src/tests/data/fuzz/x509/afl_011.pem
new file mode 100644
index 000000000..176669d6d
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_011.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_012.pem b/src/tests/data/fuzz/x509/afl_012.pem
new file mode 100644
index 000000000..baf1a7786
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_012.pem
@@ -0,0 +1,13 @@
+-----BEGIN CERTIFICATE-----
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new file mode 100644
index 000000000..bbb050f76
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diff --git a/src/tests/data/fuzz/x509/afl_030.pem b/src/tests/data/fuzz/x509/afl_030.pem
new file mode 100644
index 000000000..be3106dcc
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_030.pem
@@ -0,0 +1 @@
+0����----BcCAWqG
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_031.pem b/src/tests/data/fuzz/x509/afl_031.pem
new file mode 100644
index 000000000..1bdb26461
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_031.pem
@@ -0,0 +1 @@
+0�q�BEG���II�m8CAW]C
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_032.pem b/src/tests/data/fuzz/x509/afl_032.pem
new file mode 100644
index 000000000..436f7ce70
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_032.pem
diff --git a/src/tests/data/fuzz/x509/afl_033.pem b/src/tests/data/fuzz/x509/afl_033.pem
new file mode 100644
index 000000000..f1aa4028e
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_033.pem
diff --git a/src/tests/data/fuzz/x509/afl_034.pem b/src/tests/data/fuzz/x509/afl_034.pem
new file mode 100644
index 000000000..11c8448d0
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_034.pem
@@ -0,0 +1,4 @@
+-----BEGIN CERTIFICATE-----
+MIBBAUAMEUxCzAJBgNoBAYTAlVTMRgwFgYT
+VQQKEw9HVEUgQ29ycG9yYXRpb24xHXY
+-----END CERTIFICATE-----DA
\ No newline at end of file
diff --git a/src/tests/data/fuzz/x509/afl_035.pem b/src/tests/data/fuzz/x509/afl_035.pem
new file mode 100644
index 000000000..1ff6f1f71
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_035.pem
diff --git a/src/tests/data/fuzz/x509/afl_036.pem b/src/tests/data/fuzz/x509/afl_036.pem
new file mode 100644
index 000000000..8171e93c9
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_036.pem
diff --git a/src/tests/data/fuzz/x509/afl_037.pem b/src/tests/data/fuzz/x509/afl_037.pem
new file mode 100644
index 000000000..f3f4403b9
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_037.pem
diff --git a/src/tests/data/fuzz/x509/afl_038.pem b/src/tests/data/fuzz/x509/afl_038.pem
new file mode 100644
index 000000000..bfdd13e44
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_038.pem
diff --git a/src/tests/data/fuzz/x509/afl_039.pem b/src/tests/data/fuzz/x509/afl_039.pem
new file mode 100644
index 000000000..9e888f879
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_039.pem
diff --git a/src/tests/data/fuzz/x509/afl_040.pem b/src/tests/data/fuzz/x509/afl_040.pem
new file mode 100644
index 000000000..dbde6a784
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_040.pem
diff --git a/src/tests/data/fuzz/x509/afl_041.pem b/src/tests/data/fuzz/x509/afl_041.pem
new file mode 100644
index 000000000..5405ae442
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_041.pem
diff --git a/src/tests/data/fuzz/x509/afl_042.pem b/src/tests/data/fuzz/x509/afl_042.pem
new file mode 100644
index 000000000..6862f605a
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_042.pem
diff --git a/src/tests/data/fuzz/x509/afl_043.pem b/src/tests/data/fuzz/x509/afl_043.pem
new file mode 100644
index 000000000..56b0ddead
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_043.pem
diff --git a/src/tests/data/fuzz/x509/afl_044.pem b/src/tests/data/fuzz/x509/afl_044.pem
new file mode 100644
index 000000000..c250a4c73
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_044.pem
diff --git a/src/tests/data/fuzz/x509/afl_045.pem b/src/tests/data/fuzz/x509/afl_045.pem
new file mode 100644
index 000000000..d3d2fbb7f
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_045.pem
diff --git a/src/tests/data/fuzz/x509/afl_046.pem b/src/tests/data/fuzz/x509/afl_046.pem
new file mode 100644
index 000000000..0c65e9a45
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_046.pem
diff --git a/src/tests/data/fuzz/x509/afl_047.pem b/src/tests/data/fuzz/x509/afl_047.pem
new file mode 100644
index 000000000..9e1ad3030
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_047.pem
diff --git a/src/tests/data/fuzz/x509/afl_048.pem b/src/tests/data/fuzz/x509/afl_048.pem
new file mode 100644
index 000000000..e7f577414
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_048.pem
diff --git a/src/tests/data/fuzz/x509/afl_049.pem b/src/tests/data/fuzz/x509/afl_049.pem
new file mode 100644
index 000000000..60a5b63bd
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_049.pem
diff --git a/src/tests/data/fuzz/x509/afl_050.pem b/src/tests/data/fuzz/x509/afl_050.pem
new file mode 100644
index 000000000..2407ec731
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_050.pem
diff --git a/src/tests/data/fuzz/x509/afl_051.pem b/src/tests/data/fuzz/x509/afl_051.pem
new file mode 100644
index 000000000..c6f0bf36f
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_051.pem
diff --git a/src/tests/data/fuzz/x509/afl_052.pem b/src/tests/data/fuzz/x509/afl_052.pem
new file mode 100644
index 000000000..3f2b126f6
--- /dev/null
+++ b/src/tests/data/fuzz/x509/afl_052.pem
diff --git a/src/tests/test_fuzz.cpp b/src/tests/test_fuzz.cpp
new file mode 100644
index 000000000..f53994c26
--- /dev/null
+++ b/src/tests/test_fuzz.cpp
@@ -0,0 +1,59 @@
+/*
+* (C) 2015 Jack Lloyd
+*
+* Botan is released under the Simplified BSD License (see license.txt)
+*/
+
+#include "tests.h"
+#include <botan/x509cert.h>
+#include <botan/x509_crl.h>
+#include <botan/internal/filesystem.h>
+#include <botan/base64.h>
+#include <chrono>
+#include <iostream>
+
+namespace {
+
+size_t test_x509_fuzz()
+   {
+   const std::string fuzz_data = TEST_DATA_DIR "/fuzz";
+
+   size_t tests = 0, fails = 0;
+
+   for(auto vec: Botan::get_files_recursive(fuzz_data + "/x509"))
+      {
+      ++tests;
+
+      auto start = std::chrono::system_clock::now();
+      try
+         {
+         // TODO: check for memory consumption?
+         Botan::X509_Certificate cert(vec);
+         }
+      catch(std::exception& e)
+         {
+         //std::cout << e.what() << "\n";
+         }
+      auto end = std::chrono::system_clock::now();
+
+      uint64_t duration = std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count();
+
+      if(duration > 100)
+         {
+         std::cout << "Fuzz test " << vec << " took " << duration << " ms\n";
+         }
+      }
+
+   test_report("Fuzz Checks", tests, fails);
+
+   return fails;
+   }
+
+}
+
+size_t test_fuzzer()
+   {
+   size_t fails = 0;
+   fails += test_x509_fuzz();
+   return fails;
+   }
diff --git a/src/tests/tests.cpp b/src/tests/tests.cpp
index a0fd17879..63e6761ac 100644
--- a/src/tests/tests.cpp
+++ b/src/tests/tests.cpp
@@ -312,6 +312,7 @@ int main(int argc, char* argv[])
    DEF_TEST(nist_x509);
    DEF_TEST(tls);
    DEF_TEST(compression);
+   DEF_TEST(fuzzer);
 
    if(tests.empty())
       {
diff --git a/src/tests/tests.h b/src/tests/tests.h
index c99adf6b8..88102f289 100644
--- a/src/tests/tests.h
+++ b/src/tests/tests.h
@@ -107,6 +107,8 @@ size_t test_nist_x509();
 size_t test_srp6();
 size_t test_compression();
 
+size_t test_fuzzer();
+
 #define SKIP_TEST(testname) \
    size_t test_ ## testname() {                                    \
       std::cout << "Skipping tests: " << # testname  << std::endl; \