[B! glibc] defiantã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

defiant id:defiant

glibcã«é–¢ã™ã‚‹defiantã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (11)

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ãƒšãƒ‘ãƒœ ãƒˆãƒ©ãƒ–ãƒ«ã‚·ãƒ¥ãƒ¼ãƒˆä¼ - node ãƒ—ãƒã‚»ã‚¹ã® general protection fault ã‚’è¿½ã† - abort(3) ã®æ„å¤–ãªå®Ÿè£… - Pepabo Tech Portal
ã‚»ã‚ãƒ¥ãƒªãƒ†ã‚£å¯¾ç–å®¤ã®ä¼Šè—¤æ´‹ä¹Ÿ @hiboma ã§ã™ã€‚ æ¥å‹™ä¸ã«ã€Haconiwa ã‚³ãƒ³ãƒ†ãƒŠ ã§å‹•ãã¨ã‚ã‚‹ node ãƒ—ãƒã‚»ã‚¹ãŒ general protection fault ( ä¸€èˆ¬ä¿è·é•å! ) ã‚’èµ·ã“ã—ã¦dmesg ã«ãƒã‚°ã‚’æ®‹ã™ç¾è±¡ã‚’èª¿ã¹ã€å•é¡Œè§£æ±ºã«ã‚ãŸã£ã¦ã„ã¾ã—ãŸã€‚ãã®éš›ã®ç—•è·¡ã‚’ã¾ã¨ã‚ãªãŠã—ã¦è¨˜ã—ãŸã‚¨ãƒ³ãƒˆãƒªã«ãªã‚Šã¾ã™ã€‚ ã‚¨ãƒ³ãƒˆãƒªã®æ¦‚è¦ æœ¬ã‚¨ãƒ³ãƒˆãƒªã§ã¯ã€ä»¥ä¸‹ã®ã‚ˆã†ãªå†…å®¹ã‚’æ‰±ã„ã¾ã™ã€‚ Haconiwa ã‚³ãƒ³ãƒ†ãƒŠã® node ãƒ—ãƒã‚»ã‚¹ãŒ general protection fault ã‚’èµ·ã“ã—ã¦ã„ã‚‹ ãƒ©ã‚¤ãƒ–ãƒ©ãƒªé–¢æ•° abort(3) ã®æ¦‚è¦ abort(3) ãŒãƒ—ãƒã‚»ã‚¹ã‚’åœæ¢ã™ã‚‹æ–¹æ³•ã®æ¤œè¨¼ node ãƒ—ãƒã‚»ã‚¹ãŒ abort(3) ã‚’å‘¼ã³å‡ºã™ã‚±ãƒ¼ã‚¹ glibc x86ç³»ã® abort(3) å®Ÿè£…ãŒ HLT å‘½ä»¤ã‚’å‘¼ã³å‡ºã—ã€general protection fault ã‚’èµ·ã“ã™ã“ã¨
defiant 2020/06/15
ã™ã”ã„ã¨ã—ã‹ã„ã„ã‚ˆã†ãŒãªã„

kernel

glibc

container

nfs
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DNSãƒ•ãƒ©ã‚°ãƒ¡ãƒ³ãƒˆæ”»æ’ƒã®æ¨©å¨ã‚µãƒ¼ãƒå´ã®å¯¾ç–ã«ã¤ã„ã¦
dnsfragattack_authserver.md DNSãƒ•ãƒ©ã‚°ãƒ¡ãƒ³ãƒˆæ”»æ’ƒã«å¯¾ã™ã‚‹æ¨©å¨ã‚µãƒ¼ãƒå´ã®ç·©å’Œç–ã«ã¤ã„ã¦ TL;DR ç·©å’Œç–ãŒæœ‰åŠ¹ã¨ãªã‚‹æ¨©å¨ã‚µãƒ¼ãƒã¨Linuxã‚«ãƒ¼ãƒãƒ«ã®çµ„ã¿åˆã‚ã› RHEL/CentOSã§ã‚‚ç·©å’Œç–ã‚’æœ‰åŠ¹ã«ã—ãŸã„ èƒŒæ™¯ DNSãƒ•ãƒ©ã‚°ãƒ¡ãƒ³ãƒˆæ”»æ’ƒã«ã¤ã„ã¦ã¯ã“ã¡ã‚‰ã‚’å‚ç…§ã•ã‚ŒãŸã„ã€‚ IP fragmentation attack on DNS ã“ã“ã§ã€æ¨©å¨ã‚µãƒ¼ãƒã‹ã‚‰ã®å¿œç”ã‚’å¼·åˆ¶çš„ã‹ã¤æ”»æ’ƒè€…ã®ä»»æ„ã®ä½ç½®ã§ãƒ•ãƒ©ã‚°ãƒ¡ãƒ³ãƒˆã•ã›ã‚‹ãŸã‚ã«ã€æ”»æ’ƒè€…ãŒå½ã®ICMPv4 type 3 code 4 (destination Unreachable, fragmentation needed and DF setã€ä»¥ä¸‹ç°¡å˜ã« ICMPv4 Packet TooBig) ã‚’æ¨©å¨ã‚µãƒ¼ãƒã«æŠ•ã’ã¤ã‘ã‚‹ã“ã¨ãŒæ”»æ’ƒæˆç«‹ã®ä¸€ã¤ã®è¦ç´ ã¨ãªã£ã¦ã„ã‚‹ ã€‚åŽ³å¯†ã«ã¯ãã†ã§ãªã„ã‚±ãƒ¼ã‚¹ã‚‚ã‚ã‚‹ãŒã€ç¾æ™‚ç‚¹ã§çŸ¥ã‚‰ã‚Œã¦ã„ã‚‹é™ã‚Šã»
defiant 2019/08/09
dns

linux

glibc

rhel
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22964 â€“ The Japanese Era name will be changed on May 1, 2019
Sourceware Bugzilla â€“ BugÂ 22964 The Japanese Era name will be changed on May 1, 2019 Last modified: 2019-04-03 22:27:19 UTC
defiant 2019/05/03
glibc
ãƒªãƒ³ã‚¯
CVE-2015-7547 glibc ã«ãŠã‘ã‚‹ getaddrinfo ã®è„†å¼±æ€§ã«ã¤ã„ã¦ â€“ IIJ Security Diary
ã“ã®è„†å¼±æ€§ã¯2016å¹´2æœˆ17æ—¥ã«å¯¾ç–æ¸ˆã¿ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã¨å…±ã«å…¬é–‹ã•ã‚Œã¾ã—ãŸã€‚å†…å®¹ã¨ã—ã¦ã¯ getaddrinfo ã®å‘¼ã³å‡ºã—ã«ãŠã„ã¦ã‚¹ã‚¿ãƒƒã‚¯ãƒãƒƒãƒ•ã‚¡ã‚ªãƒ¼ãƒãƒ¼ãƒ•ãƒãƒ¼ãŒç™ºç”Ÿã™ã‚‹ç‰©ã§ã™ã€‚å…¬é–‹æ™‚ç‚¹ã§ä»¥ä¸‹ã®é€šã‚Šã€PoC ã‚’å«ã‚ãŸæŠ€è¡“çš„ãªè©³ç´°ãŒå…¬é–‹ã•ã‚Œã¦ã„ã¾ã™ã€‚æœ¬è¨˜äº‹ã§ã¯ã€è„†å¼±æ€§ãŒç™ºç”Ÿã™ã‚‹ã¾ã§ã®å‡¦ç†ã¨ã€å›žé¿ç–ã«ã¤ã„ã¦è§£èª¬ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ CVE-2015-7547 â€” glibc getaddrinfo() stack-based buffer overflow Google Online Security Blog: CVE-2015-7547: glibc getaddrinfo stack-based buffer overflow è„†å¼±æ€§ã«è‡³ã‚‹ã¾ã§ ä»Šå›žã®è„†å¼±æ€§ã¯ getaddrinfo ã®å‘¼ã³å‡ºã—ã«èµ·å› ã—ã¦ã„ã¾ã™ã€‚è„†å¼±æ€§ã®ã‚ã‚‹ç®‡æ‰€ã¾ã§ã®é–¢æ•°å‘¼ã³å‡ºã—ã¯ä»¥ä¸‹ã®æ§˜ã«ãªã£ã¦ã„ã¾ã™ã€‚ getaddri
defiant 2016/02/19
glibc

security
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CVE-2015-7547: glibc getaddrinfo stack-based buffer overflow
The latest news and insights from Google on security and safety on the Internet
defiant 2016/02/17
glibc

security
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SIOS Tech. Lab - ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ã®ãŸã‚ã«ãªã‚‹æŠ€è¡“ãƒˆãƒ”ãƒƒã‚¯ã‚¹
ã‚µã‚¤ã‚ªã‚¹ãƒ†ã‚¯ãƒŽãƒã‚¸ãƒ¼ã®ã‚¨ãƒ³ã‚¸ãƒ‹ã‚¢ãŒ ã‚¯ãƒ©ã‚¦ãƒ‰ã€OSSã€èªè¨¼ã«é–¢ã™ã‚‹æ§˜ã€…ãªæƒ…å ±ã‚’æä¾›ã—ã¾ã™ã€‚
defiant 2016/02/17
glibc

security
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oss-security - Qualys Security Advisory CVE-2015-0235 - GHOST: glibc gethostbyname buffer overflow
Follow @Openwall on Twitter for new release announcements and other news [<prev] [next>] [thread-next>] [day] [month] [year] [list] Message-ID: <20150127162936.GB18888@localhost.localdomain> Date: Tue, 27 Jan 2015 08:29:36 -0800 From: Qualys Security Advisory <[email protected]> To: oss-security@...ts.openwall.com Subject: Qualys Security Advisory CVE-2015-0235 - GHOST: glibc gethostbyname buffer ove
defiant 2015/01/28
security

glibc
ãƒªãƒ³ã‚¯
yebo blog: DebianãŒGLIBCã‹ã‚‰EGLIBCã«ã‚¹ã‚¤ãƒƒãƒ
2009/05/07 DebianãŒGLIBCã‹ã‚‰EGLIBCã«ã‚¹ã‚¤ãƒƒãƒ DebianãŒGLIBCã‹ã‚‰EGLIBCã«ã‚¹ã‚¤ãƒƒãƒã™ã‚‹ã“ã¨ã‚’å®£è¨€ã—ãŸã€‚Embedded GLIBC (EGLIBC)ã¯çµ„ã¿è¾¼ã¿ãƒ‡ãƒã‚¤ã‚¹å‘ã‘ã«ã€GNU Cãƒ©ã‚¤ãƒ–ãƒ©ãƒª(GLIBC)ã‹ã‚‰ãƒ•ã‚©ãƒ¼ã‚¯ã—ãŸãƒ—ãƒã‚¸ã‚§ã‚¯ãƒˆã§ã€GLIBCã¨ã‚½ãƒ¼ã‚¹ãŠã‚ˆã³ãƒã‚¤ãƒŠãƒªãƒ¬ãƒ™ãƒ«ã§äº’æ›æ€§ãŒã‚ã‚‹ã®ã¯ã‚‚ã¡ã‚ã‚“ã€GLIBCã«æ¯”ã¹ã¦ãƒŠã‚¤ã‚¹ãªç‚¹ãŒå¤šã„ã¨ã®ã“ã¨ã€‚ä¾‹ãˆã°ã€GLIBCã§ã¯ä¿®æ£ã•ã‚Œã¦ã„ãªã„é‡å¤§ãªãƒã‚°ãŒä¿®æ£ã•ã‚Œã¦ã„ã‚‹ã€Bashä»¥å¤–ã®ã‚·ã‚§ãƒ«ã‚’ã‚µãƒãƒ¼ãƒˆã—ã¦ã„ã‚‹ãªã©ãªã©ã€‚ã©ã†ã‚‚ã€GLIBCã®é–‹ç™ºãƒªãƒ¼ãƒ€ãƒ¼Ulrich Drepperã¨ä»˜ãåˆã„ãŸããªã„ã¨ã„ã†ã®ã‚‚æ ¹ã«ã‚ã‚‹ã‚‰ã—ã„ã€‚ Aurelien's weblog | Debian is switching to EGLIBC Slashdot | Debian Switching From Glibc To Eg
defiant 2009/05/07
debian

glibc
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æ™®é€šã®ã‚„ã¤ã‚‰ã®ä¸‹ã‚’è¡Œã‘: C ã§ãƒãƒƒã‚¯ãƒˆãƒ¬ãƒ¼ã‚¹è¡¨ç¤º - bkãƒ–ãƒã‚°
æ™®é€šã®ã‚„ã¤ã‚‰ã®ä¸‹ã‚’è¡Œã‘: C ã§ãƒãƒƒã‚¯ãƒˆãƒ¬ãƒ¼ã‚¹è¡¨ç¤º æ™®é€šã®ã‚„ã¤ã‚‰ã®ä¸‹ã‚’è¡Œã‘ã®ç¬¬2å›žã¨ã—ã¦ã€ä»Šå›žã¯ glibc ã®é–¢æ•°ã‚’ä½¿ã£ã¦ C ã§ãƒãƒƒã‚¯ãƒˆãƒ¬ãƒ¼ã‚¹ (ã‚¹ã‚¿ãƒƒã‚¯ãƒˆãƒ¬ãƒ¼ã‚¹) ã®è¡¨ç¤ºã‚’è¡Œã£ã¦ã¿ã¾ã™ã€‚ ãƒãƒƒã‚¯ãƒˆãƒ¬ãƒ¼ã‚¹ã¨ã¯ ãƒãƒƒã‚¯ãƒˆãƒ¬ãƒ¼ã‚¹ã¨ã¯ã€å¤§ã–ã£ã±ã«è¨€ã†ã¨ã€ç¾åœ¨ã®é–¢æ•°ã«è‡³ã‚‹ã¾ã§ã®é“ç‹ã§ã™ã€‚ãŸã¨ãˆã°ã€æ¬¡ã® Ruby ãƒ—ãƒã‚°ãƒ©ãƒ ã‚’å®Ÿè¡Œã™ã‚‹ã¨ã€ 1 / 0 ã®è¡Œã§ä¾‹å¤–ãŒç™ºç”Ÿã—ã¦ã€ãƒãƒƒã‚¯ãƒˆãƒ¬ãƒ¼ã‚¹ã®è¡¨ç¤ºã¨ã¨ã‚‚ã«ãƒ—ãƒã‚°ãƒ©ãƒ ã¯ç•°å¸¸çµ‚äº†ã—ã¾ã™ã€‚ def foo 1 / 0 end def main foo end main ã“ã®ä¾‹ã§ã¯ main ã‹ã‚‰ foo ã‚’å‘¼ã³ foo ã®ä¸ã® 1 / 0 ã®éƒ¨åˆ†ã§ä¾‹å¤–ãŒç™ºç”Ÿã—ã¦ã„ã¾ã™ã€‚ % ruby divide-by-zero.rb divide-by-zero.rb:2:in `/': divided by 0 (ZeroDivisionError) from div
defiant 2008/10/13
programming

c

debug

glibc
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cliplife.jp
cliplife.jp 2024 è‘—ä½œæ¨©. ä¸è¨±è¤‡è£½ ãƒ—ãƒ©ã‚¤ãƒã‚·ãƒ¼ãƒãƒªã‚·ãƒ¼
defiant 2008/07/22
linux

kernel

glibc
ãƒªãƒ³ã‚¯
ãƒšãƒ¼ã‚¸ 1
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defiant 2008/07/22
linux

kernel

glibc
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