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From f004b4b7197fc83e7d47ec8cbcaefffa9a922717 Mon Sep 17 00:00:00 2001
From: Zdenek Styblik <stybla@turnovfree.net>
Date: Sun, 12 Mar 2017 14:00:35 +0100
Subject: [PATCH 3/4] ID:480 - ipmitool coredumps in EVP_CIPHER_CTX_init
IPMI tool coredumps due to changes introduced in ID:461. This shouldn't be
surprise as a NULL pointer is passed to init. Commit addresses this issue by
calling EVP_CIPHER_CTX_new() instead of EVP_CIPHER_CTX_init(), which is
deprecated, and by checking return value of call to former function.
---
src/plugins/lanplus/lanplus_crypt_impl.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
--- a/src/plugins/lanplus/lanplus_crypt_impl.c
+++ b/src/plugins/lanplus/lanplus_crypt_impl.c
@@ -165,10 +165,13 @@ lanplus_encrypt_aes_cbc_128(const uint8_
uint32_t * bytes_written)
{
EVP_CIPHER_CTX *ctx = NULL;
- EVP_CIPHER_CTX_init(ctx);
+ ctx = EVP_CIPHER_CTX_new();
+ if (ctx == NULL) {
+ *bytes_written = 0;
+ return;
+ }
EVP_EncryptInit_ex(ctx, EVP_aes_128_cbc(), NULL, key, iv);
EVP_CIPHER_CTX_set_padding(ctx, 0);
-
*bytes_written = 0;
@@ -240,11 +243,14 @@ lanplus_decrypt_aes_cbc_128(const uint8_
uint32_t * bytes_written)
{
EVP_CIPHER_CTX *ctx = NULL;
- EVP_CIPHER_CTX_init(ctx);
+ ctx = EVP_CIPHER_CTX_new();
+ if (ctx == NULL) {
+ *bytes_written = 0;
+ return;
+ }
EVP_DecryptInit_ex(ctx, EVP_aes_128_cbc(), NULL, key, iv);
EVP_CIPHER_CTX_set_padding(ctx, 0);
-
if (verbose >= 5)
{
printbuf(iv, 16, "decrypting with this IV");
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