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grub-core/lib/pbkdf2.c (grub_crypto_pbkdf2): Check that hash len is not 0.

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This commit is contained in:
Vladimir Serbinenko 2015-01-20 15:26:09 +01:00
parent 111ab3b9cc
commit 065ed900d4
2 changed files with 5 additions and 1 deletions
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2
grub-core/lib/pbkdf2.c
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@ -52,7 +52,7 @@ grub_crypto_pbkdf2 (const struct gcry_md_spec *md,
grub_uint8_t *tmp;
grub_size_t tmplen = Slen + 4;
if (md->mdlen > GRUB_CRYPTO_MAX_MDLEN)
if (md->mdlen > GRUB_CRYPTO_MAX_MDLEN || md->mdlen == 0)
return GPG_ERR_INV_ARG;
if (c == 0)