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Re: [oss-security] Some notes on CVE's and group privilege dropping

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From:
Irek Szczesniak
Date:
June 8, 2012 11:02
Subject:
Re: [oss-security] Some notes on CVE's and group privilege dropping
Message ID:
CALnxO57zaZpi0QLmbs3hPmOvTEx-rUJg3teTxRRNdZ7NJnWGWQ@mail.gmail.com
On Fri, Jun 8, 2012 at 7:56 PM, Reini Urban <reini@cpanel.net> wrote:
> Upcoming group privilege dropping CVE
>
> POSIX and Proc::UID seem to be affected in 5.14.2 at least.
> Confirmed on my system.
>
> FW from oss-security:
> http://www.openwall.com/lists/oss-security/2012/05/24/6
> http://people.redhat.com/sgrubb/security/find-nodrop-groups
>
> “It finds many, many problems dropping supplemental groups. More than I
> alone want to fix.”
>
>    dantest@dantest.dan <mailto:dantest@dantest.dan> [~]#
>    find-nodrop-groups
>    FILE PACKAGE
>    /lib/security/pam_console.so pam-0.99.6.2-6.el5_5.2.src.rpm
>    /usr/lib/pppd/2.4.4/winbind.so ppp-2.4.4-2.el5.src.rpm
>    /usr/lib/pppd/2.4.4/passprompt.so ppp-2.4.4-2.el5.src.rpm
>    /usr/lib/tclx8.4/libtclx8.4.so tclx-8.4.0-5.fc6.src.rpm
>
> /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/auto/Proc/UID/UID.sofile
>
> /usr/lib/perl5/site_perl/5.8.8/i386-linux-thread-multi/auto/Proc/UID/UID.so
>    is not owned by any package
>
>
> /usr/lib/perl5/5.8.8/i386-linux-thread-multi/auto/POSIX/POSIX.soperl-5.8.8-10.src.rpm
>    /usr/lib/librpmio-4.4.so rpm-4.4.2.3-20.el5_5.1.src.rpm
>    /bin/ksh93 ksh-20100202-1.el5_5.1.src.rpm
>    /bin/bash bash-3.2-24.el5.src.rpm
>    /bin/tar tar-1.15.1-30.el5.src.rpm

Why are bash and ksh93 in this list?

Irek

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