diff options
Diffstat (limited to 'crypto/asn1/asn1_par.c')
-rw-r--r-- | crypto/asn1/asn1_par.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/crypto/asn1/asn1_par.c b/crypto/asn1/asn1_par.c index a5d2da1..0ca985a 100644 --- a/crypto/asn1/asn1_par.c +++ b/crypto/asn1/asn1_par.c @@ -62,6 +62,10 @@ #include <openssl/objects.h> #include <openssl/asn1.h> +#ifndef ASN1_PARSE_MAXDEPTH +#define ASN1_PARSE_MAXDEPTH 128 +#endif + static int asn1_print_info(BIO *bp, int tag, int xclass, int constructed, int indent); static int asn1_parse2(BIO *bp, const unsigned char **pp, long length, @@ -128,6 +132,12 @@ static int asn1_parse2(BIO *bp, const unsigned char **pp, long length, #else dump_indent = 6; /* Because we know BIO_dump_indent() */ #endif + + if (depth > ASN1_PARSE_MAXDEPTH) { + BIO_puts(bp, "BAD RECURSION DEPTH\n"); + return 0; + } + p = *pp; tot = p + length; op = p - 1; |