diff options
| author | Jung-uk Kim <jkim@FreeBSD.org> | 2018-11-20 19:01:17 +0000 |
|---|---|---|
| committer | Jung-uk Kim <jkim@FreeBSD.org> | 2018-11-20 19:01:17 +0000 |
| commit | f12dd99bc33eefb702280bdaed6156a57d867be1 (patch) | |
| tree | 3ced903ff59efa46be0b01f4cae665cd9c974b15 /crypto/dsa/dsa_gen.c | |
| parent | 43a67e02da9068b94df1c07fc6f0d70bafd9263b (diff) | |
Notes
Diffstat (limited to 'crypto/dsa/dsa_gen.c')
| -rw-r--r-- | crypto/dsa/dsa_gen.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/crypto/dsa/dsa_gen.c b/crypto/dsa/dsa_gen.c index db52a38a1882..e55d585890d9 100644 --- a/crypto/dsa/dsa_gen.c +++ b/crypto/dsa/dsa_gen.c @@ -435,6 +435,12 @@ int dsa_builtin_paramgen2(DSA *ret, size_t L, size_t N, EVP_MD_CTX_init(&mctx); + /* make sure L > N, otherwise we'll get trapped in an infinite loop */ + if (L <= N) { + DSAerr(DSA_F_DSA_BUILTIN_PARAMGEN2, DSA_R_INVALID_PARAMETERS); + goto err; + } + if (evpmd == NULL) { if (N == 160) evpmd = EVP_sha1(); |