blob: b9865a69b5f2ef4699ba53d1320b1c5822564ef8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
CVE: CVE-2018-0734
Upstream-Status: Backport
Signed-off-by: Kai Kang <kai.kang@windriver.com>
From 43e6a58d4991a451daf4891ff05a48735df871ac Mon Sep 17 00:00:00 2001
From: Pauli <paul.dale@oracle.com>
Date: Mon, 29 Oct 2018 08:24:22 +1000
Subject: [PATCH] Merge DSA reallocation timing fix CVE-2018-0734.
Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7513)
---
crypto/dsa/dsa_ossl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/crypto/dsa/dsa_ossl.c b/crypto/dsa/dsa_ossl.c
index 2dcfedeeee..100e269268 100644
--- a/crypto/dsa/dsa_ossl.c
+++ b/crypto/dsa/dsa_ossl.c
@@ -279,7 +279,7 @@ static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp,
goto err;
/* Preallocate space */
- q_bits = BN_num_bits(dsa->q);
+ q_bits = BN_num_bits(dsa->q) + sizeof(dsa->q->d[0]) * 16;
if (!BN_set_bit(&k, q_bits)
|| !BN_set_bit(&l, q_bits)
|| !BN_set_bit(&m, q_bits))
--
2.17.0
|
