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Ãë¾àÁ¡ID 22226
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Æ÷Æ® 443
ÇÁ·ÎÅäÄÝ TCP
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»ó¼¼¼³¸í ÇØ´ç OpenSSL ¹öÀüÀº ASN.1 ¸Þ¸ð¸® ÇÒ´çÇØÁ¦ ºÎºÐÀÇ °áÇÔÀ¸·Î ÀÎÇÑ ¼­ºñ½º °ÅºÎ Ãë¾àÁ¡À» °¡Áö°í ÀÖ´Ù.
OpenSSLÀº SSL(Secure Sockets Layer)°ú TLS (Transport Layer Security) ÇÁ·ÎÅäÄÝÀÇ ¿ÀÇ ¼Ò½º ±¸ÇöÀÌ´Ù. ÀÌ OpenSSL 0.9.7b¿Í ±× ÀÌÀü ¹öÀüµé¿¡´Â ASN.1 ±¸Á¶Ã¼¸¦ À§ÇÑ ÀúÀå ¸Þ¸ð¸® ÇÒ´çÇØÁ¦ ºÎºÐÀÇ °áÇÔÀ¸·Î ÀÎÇÏ¿© ¼­ºñ½º °ÅºÎ °ø°Ý¿¡ ¿µÇâÀ» ¹ÞÀ» ¼ö ÀÖ´Ù. ¿ø°ÝÁö °ø°ÝÀÚµéÀº Ãë¾àÇÑ ASN.1 ÆÄ¼­(parser)¿¡ Ư¼öÇÏ°Ô Àß Á¶ÀÛµÈ µ¥ÀÌÅ͸¦ Àü´ÞÇÔÀ¸·Î½á, ¼­ºñ½º °ÅºÎ¸¦ ¾ß±âÇÒ ¼ö ÀÖ´Ù. ¶ÇÇÑ, SSL ¶óÀ̺귯¸®¸¦ »ç¿ëÇÏ´Â ÇÁ·Î¼¼½º ±ÇÇÑÀ¸·Î ÀÓÀÇÀÇ ÄÚµå ½ÇÇ൵ °¡´ÉÇÒ ¼ö ÀÖ´Ù.

* ¾Ë¸²: ÀÌ Á¡°Ë Ç׸ñÀº Ãë¾àÁ¡À» Á¡°ËÇϱâ À§ÇØ ´ÜÁö ´ë»ó OpenSSLÀÇ ¹è³Ê Á¤º¸¸¸À» È®ÀÎÇÑ´Ù. µû¶ó¼­, °ÅÁþ ¾ç¼º(False Positive)À» º¸ÀÏ ¼ö ÀÖ´Ù.

* Âü°í »çÀÌÆ®:
http://www.uniras.gov.uk/vuls/2003/006489/openssl.htm
http://www.openssl.org/news/secadv_20030930.txt
http://www.kb.cert.org/vuls/id/935264

* ¿µÇâÀ» ¹Þ´Â Ç÷§Æû:
OpenSSL 0.9.7b¿Í ±× ÀÌÀü ¹öÀüµé
ÇØ°áÃ¥ ´ÙÀ½ »çÀÌÆ®¸¦ ÂüÁ¶ÇÏ¿© ÇØ´ç Á¦Ç° º¥´õ¿¡ ÀûÇÕÇÑ ÃÖ½ÅÀÇ OpenSSL ÆÐŰÁö·Î ¾÷±×·¹À̵å ÇÏ¿©¾ß ÇÑ´Ù:
http://www.securityfocus.com/bid/8732/solution

-- ȤÀº --

´ÙÀ½ÀÇ »çÀÌÆ®¸¦ ÂüÁ¶ÇÏ¿© °¡Àå ÃֽйöÀüÀÇ OpenSSL ¹öÀü(0.9.7c ÀÌ»ó)À¸·Î ¾÷±×·¹À̵å ÇÏ¿©¾ß ÇÑ´Ù:
http://www.openssl.org/
°ü·Ã URL CVE-2003-0545 (CVE)
°ü·Ã URL 8732 (SecurityFocus)
°ü·Ã URL 13315 (ISS)