diff options
Diffstat (limited to 'security/openssl111/files/patch-CVE-2018-0735')
| -rw-r--r-- | security/openssl111/files/patch-CVE-2018-0735 | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/security/openssl111/files/patch-CVE-2018-0735 b/security/openssl111/files/patch-CVE-2018-0735 deleted file mode 100644 index 2d216c4be249..000000000000 --- a/security/openssl111/files/patch-CVE-2018-0735 +++ /dev/null @@ -1,33 +0,0 @@ -Timing vulnerability in ECDSA signature generation (CVE-2018-0735) - -Preallocate an extra limb for some of the big numbers to avoid a reallocation -that can potentially provide a side channel. - -Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de> -(Merged from #7486) - -(cherry picked from commit 99540ec) - -https://www.openssl.org/news/secadv/20181029.txt ---- crypto/ec/ec_mult.c.orig 2018-09-11 12:48:21 UTC -+++ crypto/ec/ec_mult.c -@@ -206,8 +206,8 @@ int ec_scalar_mul_ladder(const EC_GROUP - */ - cardinality_bits = BN_num_bits(cardinality); - group_top = bn_get_top(cardinality); -- if ((bn_wexpand(k, group_top + 1) == NULL) -- || (bn_wexpand(lambda, group_top + 1) == NULL)) { -+ if ((bn_wexpand(k, group_top + 2) == NULL) -+ || (bn_wexpand(lambda, group_top + 2) == NULL)) { - ECerr(EC_F_EC_SCALAR_MUL_LADDER, ERR_R_BN_LIB); - goto err; - } -@@ -244,7 +244,7 @@ int ec_scalar_mul_ladder(const EC_GROUP - * k := scalar + 2*cardinality - */ - kbit = BN_is_bit_set(lambda, cardinality_bits); -- BN_consttime_swap(kbit, k, lambda, group_top + 1); -+ BN_consttime_swap(kbit, k, lambda, group_top + 2); - - group_top = bn_get_top(group->field); - if ((bn_wexpand(s->X, group_top) == NULL) |