diff options
| author | Kinichiro Inoguchi <inoguchi@cvs.openbsd.org> | 2022-01-20 11:10:12 +0000 |
|---|---|---|
| committer | Kinichiro Inoguchi <inoguchi@cvs.openbsd.org> | 2022-01-20 11:10:12 +0000 |
| commit | 0f371a0aae3806457a8a861dcedb1587c5e22890 (patch) | |
| tree | 681e347256ca5e5099f8f8ade8b07769731177a4 /lib/libcrypto/rsa | |
| parent | b1b4cf35a61620572d6186c42f66dcc5cc5a8894 (diff) | |
Add check for BN_sub return value
CID 24839
ok jsing@ millert@ tb@
Diffstat (limited to 'lib/libcrypto/rsa')
| -rw-r--r-- | lib/libcrypto/rsa/rsa_eay.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/libcrypto/rsa/rsa_eay.c b/lib/libcrypto/rsa/rsa_eay.c index a45cad0d0a9..0f8c324dccf 100644 --- a/lib/libcrypto/rsa/rsa_eay.c +++ b/lib/libcrypto/rsa/rsa_eay.c @@ -1,4 +1,4 @@ -/* $OpenBSD: rsa_eay.c,v 1.53 2022/01/07 09:55:32 tb Exp $ */ +/* $OpenBSD: rsa_eay.c,v 1.54 2022/01/20 11:10:11 inoguchi Exp $ */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * @@ -447,7 +447,8 @@ RSA_eay_private_encrypt(int flen, const unsigned char *from, unsigned char *to, goto err; if (padding == RSA_X931_PADDING) { - BN_sub(f, rsa->n, ret); + if (!BN_sub(f, rsa->n, ret)) + goto err; if (BN_cmp(ret, f) > 0) res = f; else |