Date: Thu, 9 Nov 2017 02:32:55 +0000 From: coypu@....org To: oss-security@...ts.openwall.com Cc: maya@...bsd.org Subject: nvi denial of service hello, there is an exploitable flaw in virecover in nvi (as used by netbsd and possibly others). the gist of it: sudo touch /myrootownedfile touch /var/tmp/vi.recover/vi. myrootownedfile sudo service virecover restart # may happen naturally now /myrootownedfile is deleted by the choice of an unprivileged user. for your convenience, attached is the patch used in netbsd and commit messages. (Found by Maya Rashish, fix by Christos Zoulas and Robert Elz). View attachment "nvi.diff" of type "text/plain" (9170 bytes)
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