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SSL: missing free calls in $ssl_client_s_dn and $ssl_client_i_dn.

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If X509_get_issuer_name() or X509_get_subject_name() returned NULL,
this could lead to a certificate reference leak.  It cannot happen
in practice though, since each function returns an internal pointer
to a mandatory subfield of the certificate successfully decoded by
d2i_X509() during certificate message processing (closes #1751).
This commit is contained in:
Nikolay Morozov 2019-03-26 09:33:57 +03:00
parent 1c906828ae
commit 52d9da8790
1 changed files with 2 additions and 0 deletions
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2
src/event/ngx_event_openssl.c
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@ -4622,6 +4622,7 @@ ngx_ssl_get_subject_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
name = X509_get_subject_name(cert);
if (name == NULL) {
X509_free(cert);
return NGX_ERROR;
}
@ -4673,6 +4674,7 @@ ngx_ssl_get_issuer_dn(ngx_connection_t *c, ngx_pool_t *pool, ngx_str_t *s)
name = X509_get_issuer_name(cert);
if (name == NULL) {
X509_free(cert);
return NGX_ERROR;
}