Fixes from Erik Hovland:

cli-authpubkey.c:
    fix leak of keybuf

cli-kex.c:
    fix leak of fingerprint fp

cli-service.c:
    remove commented out code

dropbearkey.c:
    don't attepmt to free NULL key on failure

common-kex.c:
    only free key if it is initialised

keyimport.c:
    remove dead encrypted-key code
    don't leak a FILE* loading OpenSSH keys

rsa.c, dss.c:
    check return values for some libtommath functions

svr-kex.c:
    check return value retrieving DH kex mpint

svr-tcpfwd.c:
    fix null-dereference if remote tcp forward request fails

tcp-accept.c:
    don't incorrectly free the tcpinfo var

--HG--
extra : convert_revision : 640a55bc710cbaa6d212453c750026c770e19193

1 files changed, 4 insertions, 41 deletions

diff --git a/keyimport.c b/keyimport.c
index a0474f3..1d3e3f5 100644
--- a/keyimport.c
+++ b/keyimport.c
@@ -361,7 +361,7 @@ struct openssh_key {
 static struct openssh_key *load_openssh_key(const char *filename)
 {
 	struct openssh_key *ret;
-	FILE *fp;
+	FILE *fp = NULL;
 	char buffer[256];
 	char *errmsg = NULL, *p = NULL;
 	int headers_done;
@@ -482,6 +482,9 @@ static struct openssh_key *load_openssh_key(const char *filename)
 		memset(&ret, 0, sizeof(ret));
 		m_free(ret);
 	}
+	if (fp) {
+		fclose(fp);
+	}
 	if (errmsg) {
 		fprintf(stderr, "Error: %s\n", errmsg);
 	}
@@ -926,40 +929,6 @@ static int openssh_write(const char *filename, sign_key *key,
 	if (passphrase) {
 		fprintf(stderr, "Encrypted keys aren't supported currently\n");
 		goto error;
-#if 0
-		/*
-		 * Invent an iv. Then derive encryption key from passphrase
-		 * and iv/salt:
-		 * 
-		 *  - let block A equal MD5(passphrase || iv)
-		 *  - let block B equal MD5(A || passphrase || iv)
-		 *  - block C would be MD5(B || passphrase || iv) and so on
-		 *  - encryption key is the first N bytes of A || B
-		 */
-		struct MD5Context md5c;
-		unsigned char keybuf[32];
-
-		for (i = 0; i < 8; i++) iv[i] = random_byte();
-
-		MD5Init(&md5c);
-		MD5Update(&md5c, (unsigned char *)passphrase, strlen(passphrase));
-		MD5Update(&md5c, iv, 8);
-		MD5Final(keybuf, &md5c);
-
-		MD5Init(&md5c);
-		MD5Update(&md5c, keybuf, 16);
-		MD5Update(&md5c, (unsigned char *)passphrase, strlen(passphrase));
-		MD5Update(&md5c, iv, 8);
-		MD5Final(keybuf+16, &md5c);
-
-		/*
-		 * Now encrypt the key blob.
-		 */
-		des3_encrypt_pubkey_ossh(keybuf, iv, outblob, outlen);
-
-		memset(&md5c, 0, sizeof(md5c));
-		memset(keybuf, 0, sizeof(keybuf));
-#endif
 	}
 
 	/*
@@ -976,12 +945,6 @@ static int openssh_write(const char *filename, sign_key *key,
 		goto error;
 	}
 	fputs(header, fp);
-	if (passphrase) {
-		fprintf(fp, "Proc-Type: 4,ENCRYPTED\nDEK-Info: DES-EDE3-CBC,");
-		for (i = 0; i < 8; i++)
-			fprintf(fp, "%02X", iv[i]);
-		fprintf(fp, "\n\n");
-	}
 	base64_encode_fp(fp, outblob, outlen, 64);
 	fputs(footer, fp);
 	fclose(fp);