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»ó¼¼¼³¸í ¹è³ÊÁ¤º¸¿¡ µû¸£¸é ¿ø°ÝÀÇ À¥ ¼­¹ö¿¡´Â 1.0.2e ÀÌÀüÀÇ OpenSSL ¹öÀüÀÌ ½ÇÇàµÇ°í ÀÖ´Ù. ÇØ´ç ¹öÀüÀº ´ÙÁß Ãë¾àÁ¡ÀÌ Á¸ÀçÇÑ´Ù.

- 'p'¸¦ '0'À¸·Î ¼³Á¤ÇÑ anonymous DH ciphersuite¿ë ServerKeyExchange ¸Þ½ÃÁö¸¦ ó¸®ÇÒ ¶§ ¿¡·¯°¡ ¹ß»ýÇÑ´Ù. ÀÌ·Î ÀÎÇØ ¼¼±×¸àÅ×ÀÌ¼Ç ¿À·ù°¡ ¹ß»ýÇÏ°í, ¸µÅ©µÈ ¶óÀ̺귯¸®°¡ ¼Õ»óÀ» ÀÔ¾î ¼­ºñ½º °ÅºÎ°¡ ¹ß»ýµÈ´Ù. (CVE-2015-1794)

- x86_64 Ç÷§ÆûÀÇ ¸ù°í¸Þ¸®(Montgomery) Àû»ê(squaring) ±¸Çö(implementation)¿¡ ij¸® ÇÁ·ÎÆÛ°ÔÀ̼Ç(carry propagation)À» À߸ø ó¸®ÇÏ¿© ¿Ã¹Ù¸£Áö ¾ÊÀº °á°ú°¡ ³ª¿À´Â Ãë¾àÁ¡ÀÌ Á¸ÀçÇÑ´Ù. ÀÌ·Î ÀÎÇØ °ø°ÝÀÚ´Â °³ÀÎÅ°¿¡ °ü·ÃµÈ ¹Î°¨ÇÑ Á¤º¸¸¦ ȹµæÇÒ ¼ö ÀÖ´Ù. (CVE-2015-3193)

- RSA PSS ¾Ë°í¸®ÁòÀ» »ç¿ëÇϸç mask »ý¼º ±â´É ÆĶó¹ÌÅ͸¦ ´©¶ôÇÑ ASN.1 ¼­¸íÀ» ó¸®ÇÒ ¶§ NULL Æ÷ÀÎÅ͸¦ ¿ªÂüÁ¶ÇÏ´Â ¿À·ù°¡ ¹ß»ýÇÑ´Ù. ÀÌ·Î ÀÎÇØ °ø°ÝÀÚ´Â ¼­¸í ÀÎÁõ ·çƾÀ» ¿Ã¹Ù¸£°Ô ÀÛµ¿ÇÏÁö ¸øÇÏ°Ô ÇÏ¿© ¼­ºñ½º °ÅºÎ¸¦ ÀÏÀ¸Å³ ¼ö ÀÖ´Ù. (CVE-2015-3194)

- ASN1_TFLG_COMBINE ½ÇÇà ½Ã Á¶ÀÛµÈ X509_ATTRIBUTE ±¸Á¶Ã¼¸¦ ó¸®ÇÒ ¶§ ¿¡·¯°¡ ¹ß»ýÇÑ´Ù. ÀÌ·Î ÀÎÇØ °ø°ÝÀÚ´Â ¸Þ¸ð¸® ´©¼ö¸¦ ÀÏÀ¸ÄÑ ¼­ºñ½º °ÅºÎ¸¦ ÀÏÀ¸Å³ ¼ö ÀÖ´Ù. (CVE-2015-3195)

* ¾Ë¸²: ÀÌ Á¡°ËÇ׸ñÀº ÀÌ Ãë¾àÁ¡À» Á¡°ËÇϱâ À§ÇØ ¹öÀü Á¤º¸¸¸À» È®ÀÎÇÑ´Ù. µû¶ó¼­ °ÅÁþ ¾ç¼º¹ÝÀÀ(False Positive)À» º¸ÀÏ ¼ö ÀÖ´Ù.

* Âü°í »çÀÌÆ®:
https://www.openssl.org/news/secadv/20151203.txt
https://mta.openssl.org/pipermail/openssl-commits/2015-August/001540.html

* ¿µÇâÀ» ¹Þ´Â Ç÷§Æû:
1.0.2e ÀÌÀüÀÇ OpenSSL 1.0.2
Linux Any version
Unix Any version
Microsoft Windows Any version
ÇØ°áÃ¥ OpenSSL À¥ »çÀÌÆ®ÀÎ http://www.openssl.org/ ¿¡¼­ ±¸ÇÒ ¼ö ÀÖ´Â OpenSSLÀÇ °¡Àå ÃֽŠ¹öÀü(1.0.2e ¶Ç´Â ÀÌÈÄ)À¸·Î ¾÷±×·¹À̵å ÇÏ¿©¾ß ÇÑ´Ù.
°ü·Ã URL CVE-2015-1794,CVE-2015-3193,CVE-2015-3194,CVE-2015-3195 (CVE)
°ü·Ã URL (SecurityFocus)
°ü·Ã URL (ISS)