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path: root/openssl/crypto/x509v3/v3_addr.c
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Diffstat (limited to 'openssl/crypto/x509v3/v3_addr.c')
-rw-r--r--openssl/crypto/x509v3/v3_addr.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/openssl/crypto/x509v3/v3_addr.c b/openssl/crypto/x509v3/v3_addr.c
index 9087d66e0..0d70e8696 100644
--- a/openssl/crypto/x509v3/v3_addr.c
+++ b/openssl/crypto/x509v3/v3_addr.c
@@ -177,12 +177,18 @@ static int i2r_address(BIO *out,
unsigned char addr[ADDR_RAW_BUF_LEN];
int i, n;
+ if (bs->length < 0)
+ return 0;
switch (afi) {
case IANA_AFI_IPV4:
+ if (bs->length > 4)
+ return 0;
addr_expand(addr, bs, 4, fill);
BIO_printf(out, "%d.%d.%d.%d", addr[0], addr[1], addr[2], addr[3]);
break;
case IANA_AFI_IPV6:
+ if (bs->length > 16)
+ return 0;
addr_expand(addr, bs, 16, fill);
for (n = 16; n > 1 && addr[n-1] == 0x00 && addr[n-2] == 0x00; n -= 2)
;