diff options
Diffstat (limited to 'thirdparty/openssl/crypto/pem/pvkfmt.c')
| -rw-r--r-- | thirdparty/openssl/crypto/pem/pvkfmt.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/thirdparty/openssl/crypto/pem/pvkfmt.c b/thirdparty/openssl/crypto/pem/pvkfmt.c index 61864468f6..1ce5a1e319 100644 --- a/thirdparty/openssl/crypto/pem/pvkfmt.c +++ b/thirdparty/openssl/crypto/pem/pvkfmt.c @@ -127,6 +127,9 @@ static int read_lebn(const unsigned char **in, unsigned int nbyte, BIGNUM **r) # define MS_KEYTYPE_KEYX 0x1 # define MS_KEYTYPE_SIGN 0x2 +/* Maximum length of a blob after header */ +# define BLOB_MAX_LENGTH 102400 + /* The PVK file magic number: seems to spell out "bobsfile", who is Bob? */ # define MS_PVKMAGIC 0xb0b5f11eL /* Salt length for PVK files */ @@ -272,6 +275,10 @@ static EVP_PKEY *do_b2i_bio(BIO *in, int ispub) return NULL; length = blob_length(bitlen, isdss, ispub); + if (length > BLOB_MAX_LENGTH) { + PEMerr(PEM_F_DO_B2I_BIO, PEM_R_HEADER_TOO_LONG); + return NULL; + } buf = OPENSSL_malloc(length); if (!buf) { PEMerr(PEM_F_DO_B2I_BIO, ERR_R_MALLOC_FAILURE); |