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| author | Shane Lontis <shane.lontis@oracle.com> | 2021-04-12 11:19:21 +1000 |
|---|---|---|
| committer | Shane Lontis <shane.lontis@oracle.com> | 2021-04-14 16:05:00 +1000 |
| commit | 5c107243877121f84037a5aaf19457f87458e8ed (patch) | |
| tree | 8b3ef6e620890f5c1cb4ec1e1cdad9ca74c9888e /crypto/evp/evp_lib.c | |
| parent | 46eee7104d77f9d303e06a398febdc60fd014d33 (diff) | |
Add some additional NULL checks to prevent segfaults.
Fixes #14809
PR #14752 attempted to pass the libctx, propq in a few places related to
X509 signing. There were a few places that needed additional NULL checks so that they behavethe same as they did before.
OCSP_basic_sign() was changed to call EVP_DigestSignInit_ex() which passed the parameter EVP_MD_name(dgst). Since dgst can be NULL EVP_MD_name() was segfaulting.
Adding an additional NULL check EVP_MD_name() resolves this issue.
The other NULL checks are required to produce errors rather than
segfaults if the certificate is NULL.
Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/14826)
Diffstat (limited to 'crypto/evp/evp_lib.c')
| -rw-r--r-- | crypto/evp/evp_lib.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/crypto/evp/evp_lib.c b/crypto/evp/evp_lib.c index a707285c91..6c578bd8ba 100644 --- a/crypto/evp/evp_lib.c +++ b/crypto/evp/evp_lib.c @@ -701,6 +701,8 @@ const char *EVP_MD_description(const EVP_MD *md) const char *EVP_MD_name(const EVP_MD *md) { + if (md == NULL) + return NULL; if (md->prov != NULL) return evp_first_name(md->prov, md->name_id); #ifndef FIPS_MODULE |