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Integer overflow in Sun RPC XDR library routines Ãë¾àÁ¡
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Sun Microsystems Solaris 2.5.1,
Sun Microsystems Solaris 2.6,
Sun Microsystems Solaris 7,
Sun Microsystems Solaris 8,
Sun Microsystems Solaris 9
GNU glibc
MIT Kerberos 5
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RPC´Â ºÐ»êµÈ ½Ã½ºÅÛ³»¿¡¼ ³»ºÎ ÇÁ·Î¼¼½º Åë½ÅÀ» À§ÇÑ ¼ÒÇÁÆ®¿þ¾î ÇÁ·¹ÀÓ¿÷À̸ç, ¸¹Àº ³×Æ®¿öÅ© ¼ºñ½º¿¡ ´ëÇÏ¿© RPC´Â Áß¿äÇÑ ¿ªÈ°À» ¼öÇàÇÏ°Ô ÇØÁØ´Ù. Sun MicrosystemsÀÇ RPC ÇÁ·Î±×·¥¿¡ Ç¥ÁØÀ¸·Î äÅÃµÇ¾î »ç¿ëµÇ´Â xdr_arrayÇÔ¼ö¿¡ ¹öÆÛ ¿À¹öÇ÷οì Ãë¾àÁ¡ÀÌ Á¸ÀçÇÑ´Ù. XDRÀº External Data RepresentationÀÇ ¾àÀÚÀÌ´Ù
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SUN RPC ¶óÀ̺귯¸®ÀÇ ÀϺÎÀÎ xdr_array ÇÊÅÍ´Â °¡º¯±æÀÌ ¹è¿µéÀ» ÇØ¼®Çϱâ À§ÇØ »ç¿ëµÇ¸ç, °ø°ÝÀÚ°¡ °úµµÇÏ°Ô Å« ¼öÀÇ ¿ä¼ÒµéÀ» xdr_array¿¡ Àû¿ë½ÃŰ¸é ¹öÆÛ¿À¹öÇÃ·Î¿ì »óȲÀÌ ¹ß»ýÇÑ´Ù. xdr_arrayÇÔ¼ö´Â ´Ù¼öÀÇ RPC¼ºñ½ºµé¿¡ »ç¿ëµÇ¸ç, xdr_arrayÇÊÅÍÇÔ¼ö¸¦ »ç¿ëÇÏ´Â third party¼ÒÇÁÆ®¿þ¾î³ª SUN Microsystems°ü·Ã ¼ÒÇÁÆ®¿þ¾îµé¿¡´Â ÀÌ·¯ÇÑ Ãë¾àÁ¡ÀÌ Á¸ÀçÇÒ ¼ö ÀÖ´Ù. ÀÌ Ãë¾àÇÑ RPC¼ºñ½º´Â software³ª OS¸¦ ¼³Ä¡ÇÒ¶§ µðÆúÆ®·Î ¼³Ä¡µÇ¾î Ȱ¼ºÈ µÇ¾î ÀÖ´Ù.
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ÀÌ Ãë¾àÁ¡À» ÀÌ¿ëÇÏ¿© °ø°ÝÀÚ°¡ ¿ø°Ý¿¡¼ ½Ã½ºÅÛ »ç¿ëÀÚ ±ÇÇÑÀ¸·Î ÀÓÀÇÀÇ ¸í·É¾î¸¦ ½ÇÇà½Ãų¼ö ÀÖÀ¸¸ç, root±ÇÇÑÀÇ ½©(shell) ¶ÇÇÑ È¹µæÇÒ ¼ö ÀÖ´Ù. ÀÌ¿¡ ³×Æ®¿öÅ©ÀÇ °ø°Ý¿¡ ´ëÇÑ ÇÊÅ͸µÀ» ¼öÇàÇÏÁö ¾Ê´Â »çÀÌÆ®´Â ¸Å¿ì À§ÇèÇÑ »óȲÀ» ÃÊ·¡ÇÒ ¼ö ÀÖÀ¸¸ç, ³»ºÎÀÚ°¡ ÀÌ °ø°Ýµµ±¸¸¦ »ç¿ëÇÏ¿© ³»ºÎ½Ã½ºÅÛÀ» °ø°ÝÀ» ÇÒ ¼ö ÀÖ´Ù.
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½Ã½ºÅÛ °ü¸®ÀÚ´Â ¾Æ·¡ÀÇ »çÀÌÆ®¸¦ ÅëÇØ ÆÐÄ¡ÇÑ´Ù.
1. ½Ã½ºÅÛ °ü¸®ÀÚ´Â XDR/RPC ¶óÀ̺귯¸®¸¦ ¾÷µ¥ÀÌÆ®Çϰųª, ÆÐÄ¡ÇÑ´Ù.
2. XDR/RPC ¶óÀ̺귯¸®¸¦ ÀÌ¿ëÇÏ´Â ¼ºñ½ºµé¿¡ ´ëÇØ¼ Àç½ÃÀÛÇÑ´Ù.
3. ¾÷µ¥ÀÌÆ®µÈ XDR/RPC ¶óÀ̺귯¸® ¶Ç´Â ÆÐÄ¡µÇ¾îÁø ¾îÇø®ÄÉÀ̼ǿ¡ ´ëÇØ¼ ÀçÄÄÆÄÀÏÇÑ´Ù.
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1. Sun MicrosystemsÀÇ ÆÐÄ¡¿¡ ´ëÇØ¼´Â ¾Æ·¡ÀÇ URLÀ» Âü°íÇÑ´Ù.
http://sunsolve.sun.com/securitypatch
2. GNU glibc
GNU C LibraryÀÇ Version 2.3.1°ú ±× ÀÌÀüÀÇ ¹öÀü¿¡ ´ëÇØ¼ Ãë¾àÇÏ´Ù.
ÀÌ Ãë¾àÁ¡¿¡ ´ëÇØ¼´Â ÆÐÄ¡¸¦ ÇØ¾ßÇϰí, ÆÐÄ¡¸¦ ÇÑ °æ¿ì¿¡´Â CVS ¼Ò½ºµé³»¿¡ ÀνºÅçµÇ¾îÁ®¾ß Çϰí, GNU C LibraryÀÇ ´ÙÀ½ ¹öÀü¿¡ ³ªÅ¸³ª¾ß ÇÑ´Ù. ÆÐÄ¡´Â ¾Æ·¡ÀÇ URLÀ» ÂüÁ¶¸¦ ÂüÁ¶ÇÑ´Ù.
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/sunrpc/rpc/xdr.h.diff?r1=1.26&r2=1.27&cvsroot=glibc
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/sunrpc/xdr_mem.c.diff?r1=1.13&r2=1.15&cvsroot=glibc
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/sunrpc/xdr_rec.c.diff?r1=1.26&r2=1.27&cvsroot=glibc
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/sunrpc/xdr_sizeof.c.diff?r1=1.5&r2=1.6&cvsroot=glibc
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/sunrpc/xdr_stdio.c.diff?r1=1.15&r2=1.16&cvsroot=glibc
3. MIT Kerberos 5ÀÇ ¸ðµç Á¦Ç°¿¡ ´ëÇØ¼´Â ¾Æ·¡ÀÇ URLÀ» Âü°íÇÑ´Ù.
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-003-xdr.txt
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SunSolve
¡æ
http://sunsolve.sun.com
xForce(ISS)
¡æ
http://bvlive01.iss.net/issEn/delivery/xforce/alerts.jsp
¡æ
http://bvlive01.iss.net/issEn/delivery/xforce/alertdetail.jsp?oid=20823
CIAC
¡æ
http://www.ciac.org/ciac/bulletins/n-059.shtml