diff options
| author | dtucker@openbsd.org <dtucker@openbsd.org> | 2017-03-10 02:59:51 +0000 |
|---|---|---|
| committer | Darren Tucker <dtucker@zip.com.au> | 2017-03-10 15:23:17 +1100 |
| commit | 4a4b75adac862029a1064577eb5af299b1580cdd (patch) | |
| tree | 97ef3deb8f9ccf0a9c6009baa7a0ddf5edf9fee7 /digest-openssl.c | |
| parent | bee0167be2340d8de4bdc1ab1064ec957c85a447 (diff) | |
| download | openssh-git-4a4b75adac862029a1064577eb5af299b1580cdd.tar.gz | |
upstream commit
Validate digest arg in ssh_digest_final; from jjelen at
redhat.com via bz#2687, ok djm@
Upstream-ID: dbe5494dfddfe523fab341a3dab5a79e7338f878
Diffstat (limited to 'digest-openssl.c')
| -rw-r--r-- | digest-openssl.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/digest-openssl.c b/digest-openssl.c index 13b63c2f..c55ceb93 100644 --- a/digest-openssl.c +++ b/digest-openssl.c @@ -1,4 +1,4 @@ -/* $OpenBSD: digest-openssl.c,v 1.5 2014/12/21 22:27:56 djm Exp $ */ +/* $OpenBSD: digest-openssl.c,v 1.6 2017/03/10 02:59:51 dtucker Exp $ */ /* * Copyright (c) 2013 Damien Miller <djm@mindrot.org> * @@ -158,7 +158,7 @@ ssh_digest_final(struct ssh_digest_ctx *ctx, u_char *d, size_t dlen) const struct ssh_digest *digest = ssh_digest_by_alg(ctx->alg); u_int l = dlen; - if (dlen > UINT_MAX) + if (digest == NULL || dlen > UINT_MAX) return SSH_ERR_INVALID_ARGUMENT; if (dlen < digest->digest_len) /* No truncation allowed */ return SSH_ERR_INVALID_ARGUMENT; |