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Ãë¾àÁ¡ID 22957
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ÇÁ·ÎÅäÄÝ TCP
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»ó¼¼¼³¸í ¿ø°Ý È£½ºÆ®¿¡ ¼³Ä¡µÈ TomcatÀÇ ¹öÀüÀº 8.5.57 ÀÌÀüÀÇ 8.5.xÀÔ´Ï´Ù. µû¶ó¼­ Apache Tomcat 8.5.57¿¡¼­ ¼öÁ¤ µÈ º¸¾È ±Ç°í¿¡ ¾ð±Þ µÈ ¿©·¯ Ãë¾àÁ¡ÀÇ ¿µÇâÀ» ¹Þ½À´Ï´Ù.

-WebSocket ÇÁ·¹ÀÓÀÇ ÆäÀÌ·Îµå ±æÀÌ°¡ ¿Ã¹Ù¸£°Ô °ËÁõµÇÁö ¾Ê¾Ò½À´Ï´Ù. À¯È¿ÇÏÁö ¾ÊÀº ÆäÀÌ·Îµå ±æÀÌ´Â ¹«ÇÑ ·çÇÁ¸¦ Æ®¸®°Å ÇÒ ¼ö ÀÖ½À´Ï´Ù. À¯È¿ÇÏÁö ¾ÊÀº ÆäÀÌ·Îµå ±æÀÌ°¡ ÀÖ´Â ¿©·¯ ¿äûÀº ¼­ºñ½º °ÅºÎ (DoS)·Î À̾îÁú ¼ö ÀÖ½À´Ï´Ù. (CVE-2020-13935)

-HTTP / 2·Î ¾÷±×·¹À̵å ÇÑ ÈÄ h2c Á÷Á¢ ¿¬°áÀÌ HTTP / 1.1 ÇÁ·Î¼¼¼­¸¦ ÇØÁ¦ÇÏÁö ¾Ê¾Ò½À´Ï´Ù. ±×·¯ÇÑ ¿äûÀÌ ÃæºÐÇÑ °æ¿ì OutOfMemoryExceptionÀÌ ¹ß»ýÇÏ¿© DoS (¼­ºñ½º °ÅºÎ)°¡ ¹ß»ýÇÒ ¼ö ÀÖ½À´Ï´Ù. (CVE-2020-13934)

* Âü°í »çÀÌÆ®:
https://github.com/apache/tomcat/commit/12d715676038efbf9c728af10163f8277fc019d5
https://github.com/apache/tomcat/commit/923d834500802a61779318911d7898bd85fc950e
https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.57

* ¿µÇâÀ» ¹Þ´Â Ç÷§Æû:
Apache Tomcat Server 8.5.57 ÀÌÀüÀÇ 8.5.x ¹öÀüµé
¸ðµç ¿î¿µÃ¼Á¦ ¸ðµç ¹öÀü
ÇØ°áÃ¥ Apache Software Foundation À¥ »çÀÌÆ®ÀÎ http://tomcat.apache.org/ ¿¡¼­ ±¸ÇÒ ¼ö ÀÖ´Â Apache Tomcat ServerÀÇ °¡Àå ÃֽŠ¹öÀü(8.5.57 ȤÀº ÀÌÈÄ)À¸·Î ¾÷±×·¹À̵å ÇÏ¿©¾ß ÇÑ´Ù.
°ü·Ã URL CVE-2020-13934,CVE-2020-13935 (CVE)
°ü·Ã URL (SecurityFocus)
°ü·Ã URL (ISS)