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Check for errors in a2d_ASN1_OBJECT()
[oweals/openssl.git]
/
crypto
/
asn1
/
a_object.c
diff --git
a/crypto/asn1/a_object.c
b/crypto/asn1/a_object.c
index fba9f66454df2dcd9ff16349ec9fce862a118349..229a40ffa34447fd23265c65fc168f91480319b3 100644
(file)
--- a/
crypto/asn1/a_object.c
+++ b/
crypto/asn1/a_object.c
@@
-174,8
+174,12
@@
int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num)
if (!tmp)
goto err;
}
- while (blsize--)
- tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L);
+ while (blsize--) {
+ BN_ULONG t = BN_div_word(bl, 0x80L);
+ if (t == (BN_ULONG)-1)
+ goto err;
+ tmp[i++] = (unsigned char)t;
+ }
} else {
for (;;) {