Re: svn commit: r228843 - head/contrib/telnet/libtelnet

看板FB_security作者時間14年前 (2011/12/30 02:32), 編輯推噓0(000)
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 12/29/11 06:39, John Baldwin wrote: > Can you give some more details on why ftpd is triggering a dlopen > inside of the chroot? It would appear that that is unrelated to > helper programs (since setting a flag in libc in ftpd can't > possibly affect helper programs ability to use dlopen() from within > libc). Sure. That's because nsdispatch(3) would reload /etc/nsswitch.conf if it notices a change. After chroot() the file is considered as "chang"ed and thus it reloads the file as well as designated shared libraries. Cheers, - -- Xin LI <delphij@delphij.net> https://www.delphij.net/ FreeBSD - The Power to Serve! Live free or die -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk78sMkACgkQOfuToMruuMAu9wCbBevDzZFX9eHBYHtN1iOw9iG2 Z2oAnjYrxskRMyu0ygqesoi7UgrjumWv =N7gZ -----END PGP SIGNATURE----- _______________________________________________ freebsd-security@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-security To unsubscribe, send any mail to "freebsd-security-unsubscribe@freebsd.org"
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文章代碼(AID): #1E_B8Z9d (FB_security)