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Sanity check buffer length.

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Reject zero length buffers passed to X509_NAME_onelne().

Issue reported by Guido Vranken.

Reviewed-by: Matt Caswell <matt@openssl.org>
(cherry picked from commit b33d1141b6dcce947708b984c5e9e91dad3d675d)
This commit is contained in:
Dr. Stephen Henson 2016-04-28 13:09:27 +01:00
parent 53d6c14bef
commit 0b34cf8223
1 changed files with 2 additions and 0 deletions
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2
crypto/x509/x509_obj.c
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@ -86,6 +86,8 @@ char *X509_NAME_oneline(X509_NAME *a, char *buf, int len)
goto err; goto err;
b->data[0] = '\0'; b->data[0] = '\0';
len = 200; len = 200;
} else if (len == 0) {
return NULL;
} }
if (a == NULL) { if (a == NULL) {
if (b) { if (b) {