hostapd: merge a security fix for a TLS message buffer overflow (CVE-2012-4445)
SVN-Revision: 33815
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1 changed files with 17 additions and 0 deletions
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@ -0,0 +1,17 @@
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--- a/src/eap_server/eap_server_tls_common.c
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+++ b/src/eap_server/eap_server_tls_common.c
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@@ -228,6 +228,14 @@ static int eap_server_tls_process_fragme
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return -1;
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}
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+ if (len > message_length) {
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+ wpa_printf(MSG_INFO, "SSL: Too much data (%d bytes) in "
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+ "first fragment of frame (TLS Message "
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+ "Length %d bytes)",
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+ (int) len, (int) message_length);
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+ return -1;
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+ }
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+
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data->tls_in = wpabuf_alloc(message_length);
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if (data->tls_in == NULL) {
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wpa_printf(MSG_DEBUG, "SSL: No memory for message");
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