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24 lines
795 B
Diff
24 lines
795 B
Diff
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From f3a24d7916b9173c69a3e0ee790102993833d6c5 Mon Sep 17 00:00:00 2001
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From: Daniel Stenberg <daniel@haxx.se>
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Date: Fri, 28 Sep 2018 16:08:16 +0200
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Subject: [PATCH] Curl_auth_create_plain_message: fix too-large-input-check
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CVE-2018-16839
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Reported-by: Harry Sintonen
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Bug: https://curl.haxx.se/docs/CVE-2018-16839.html
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---
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lib/vauth/cleartext.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/lib/vauth/cleartext.c
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+++ b/lib/vauth/cleartext.c
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@@ -74,7 +74,7 @@ CURLcode Curl_auth_create_plain_message(
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plen = strlen(passwdp);
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/* Compute binary message length. Check for overflows. */
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- if((ulen > SIZE_T_MAX/2) || (plen > (SIZE_T_MAX/2 - 2)))
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+ if((ulen > SIZE_T_MAX/4) || (plen > (SIZE_T_MAX/2 - 2)))
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return CURLE_OUT_OF_MEMORY;
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plainlen = 2 * ulen + plen + 2;
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