diff options
| author | Andreas Schneider <asn@cryptomilk.org> | 2019-10-28 14:26:27 +0100 |
|---|---|---|
| committer | Andreas Schneider <asn@cryptomilk.org> | 2019-12-09 16:08:03 +0100 |
| commit | 7b9cbcebe5c1b748a7c50873d2ed8afff4e4089f (patch) | |
| tree | 8c499ea44fd3d713121a538fc21cb0185fbe9d7e /src/pki_crypto.c | |
| parent | 56d571ab8171a1282da0cbd4f9d5b7b9724d7aa5 (diff) | |
| download | libssh-7b9cbcebe5c1b748a7c50873d2ed8afff4e4089f.tar.gz libssh-7b9cbcebe5c1b748a7c50873d2ed8afff4e4089f.tar.xz libssh-7b9cbcebe5c1b748a7c50873d2ed8afff4e4089f.zip | |
SSH-01-006: Add missing NULL checks in pki_signature_from_rsa_blob()
Fixes T193
Signed-off-by: Andreas Schneider <asn@cryptomilk.org
Reviewed-by: Jakub Jelen <jjelen@redhat.com>
Diffstat (limited to 'src/pki_crypto.c')
| -rw-r--r-- | src/pki_crypto.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/pki_crypto.c b/src/pki_crypto.c index f3df40fc..2336ef7a 100644 --- a/src/pki_crypto.c +++ b/src/pki_crypto.c @@ -1614,6 +1614,10 @@ static int pki_signature_from_rsa_blob(const ssh_key pubkey, blob_padded_data = (char *) ssh_string_data(sig_blob_padded); blob_orig = (char *) ssh_string_data(sig_blob); + if (blob_padded_data == NULL || blob_orig == NULL) { + goto errout; + } + /* front-pad the buffer with zeroes */ explicit_bzero(blob_padded_data, pad_len); /* fill the rest with the actual signature blob */ |