full-disclosure - [FD] Insecure tmpdir() use in dbtoepub.rb in docbook / xslt10-stylesheets

Open Source and information security mailing list archives

Date: Wed, 11 Sep 2019 10:55:45 +0300
From: Shlomi Fish <shlomif@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] Insecure tmpdir() use in dbtoepub.rb in docbook /
	xslt10-stylesheets

See:

https://github.com/docbook/xslt10-stylesheets/pull/144

«
See https://ruby-doc.org/stdlib-2.0.0/libdoc/tmpdir/rdoc/Dir.html -
tmpdir returns the same value everytime and as a result the tmpdirs can
be identical or existing.

SECURITY!

Thanks to phaul from #ruby .
»

There is a patch that seems to work well in the mageia linux package, but
no PoC exploit.

-- 
Shlomi Fish http://www.shlomifish.org/

Buddha has the Chuck Norris nature.

Please reply to list if it's a mailing list post - http://shlom.in/reply .

_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: http://seclists.org/fulldisclosure/

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives