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authorJack Lloyd <[email protected]>2017-08-25 11:46:49 -0400
committerJack Lloyd <[email protected]>2017-08-25 17:36:51 -0400
commit9517d460a7b5281b7fdb40488db60795b41ccbd3 (patch)
treed0676a3ac027504e8c4540922ca952b63ba665cb
parent8ac2697a3b9e6242e2f6d0c5e1d83fc150fd6ff0 (diff)
Fix bad iterator deref in OpenSSL RSA
-rw-r--r--src/lib/prov/openssl/openssl_rsa.cpp4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/lib/prov/openssl/openssl_rsa.cpp b/src/lib/prov/openssl/openssl_rsa.cpp
index 58a09cb0d..b1c73d851 100644
--- a/src/lib/prov/openssl/openssl_rsa.cpp
+++ b/src/lib/prov/openssl/openssl_rsa.cpp
@@ -171,7 +171,9 @@ class OpenSSL_RSA_Verification_Operation : public PK_Ops::Verification_with_EMSA
throw Invalid_Argument("OpenSSL RSA verify input too large");
secure_vector<uint8_t> inbuf(mod_sz);
- copy_mem(&inbuf[mod_sz - msg_len], msg, msg_len);
+
+ if(msg_len > 0)
+ copy_mem(&inbuf[mod_sz - msg_len], msg, msg_len);
secure_vector<uint8_t> outbuf(mod_sz);