oss-security - CVE request: kernel: exit_notify: kill the wrong capable(CAP

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <49DAE693.9020400@redhat.com>
Date: Tue, 07 Apr 2009 13:37:23 +0800
From: Eugene Teo <eugene@...hat.com>
To: oss-security@...ts.openwall.com
CC: "Steven M. Christey" <coley@...us.mitre.org>,
        Chris Wright <chrisw@...hat.com>, Greg KH <greg@...ah.com>
Subject: CVE request: kernel: exit_notify: kill the wrong capable(CAP_KILL)
 check

A malicious application can execute a setuid binary before exit. This
would mean that we will not reset the ->exit_signal to SIGCHLD unless
the binary drops CAP_KILL.

https://bugzilla.redhat.com/show_bug.cgi?id=493771
http://git.kernel.org/linus/432870dab85a2f69dc417022646cb9a70acf7f94

Chris/Greg, we probably need this in -stable.

Thanks, Eugene
-- 
Eugene Teo, RHCA, RHCSS / Red Hat Security Response Team

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.