18 lines
658 B
Text
18 lines
658 B
Text
$NetBSD: patch-ac,v 1.5 2010/12/17 17:00:35 shannonjr Exp $
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--- src/atrhandler.c.orig 2009-07-28 20:57:07.000000000 +0000
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+++ src/atrhandler.c
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@@ -239,6 +239,13 @@ short ATRDecodeAtr(PSMARTCARD_EXTENSION
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if (psExtension->CardCapabilities.AvailableProtocols & SCARD_PROTOCOL_T1)
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TCK = pucAtr[p++];
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+ /*
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+ * The following 2 lines were backported from PCSC-lite version 1.6.6
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+ * to correct buffer overflow vulnerability.
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+ */
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+ if (p > MAX_ATR_SIZE)
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+ return 0; /** @retval 0 Maximum attribute size */
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+
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memcpy(psExtension->ATR.Value, pucAtr, p);
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psExtension->ATR.Length = p; /* modified from p-1 */
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