Scientific Linux 5.x moderate: perl CVE-2008-5302 execution flaws

Date: Tue, 8 Jun 2010 10:36:58 -0500
Reply-To: Troy Dawson 
Sender: Security Errata for Scientific Linux
 
From: Troy Dawson 
Subject: FASTBUGS for SL 5.x i386/x86_64
Comments: To: "This email address is being protected from spambots. You need JavaScript enabled to view it."
 

The following FASTBUGS have been uploaded to

 i386:
device-mapper-1.02.39-1.el5_5.2.i386.rpm
device-mapper-event-1.02.39-1.el5_5.2.i386.rpm
glibc-2.5-49.el5_5.2.i386.rpm
glibc-2.5-49.el5_5.2.i686.rpm
glibc-common-2.5-49.el5_5.2.i386.rpm
glibc-devel-2.5-49.el5_5.2.i386.rpm
glibc-headers-2.5-49.el5_5.2.i386.rpm
glibc-utils-2.5-49.el5_5.2.i386.rpm
gnome-vfs2-2.16.2-6.el5_5.1.i386.rpm
gnome-vfs2-devel-2.16.2-6.el5_5.1.i386.rpm
gnome-vfs2-smb-2.16.2-6.el5_5.1.i386.rpm
kexec-tools-1.102pre-96.el5_5.1.i386.rpm
kexec-tools-1.102pre-96.el5_5.2.i386.rpm
kmod-spice-usb-redirector-4.5-2.el5_5.i386.rpm
lvm2-2.02.56-8.el5_5.1.i386.rpm
nscd-2.5-49.el5_5.2.i386.rpm
nspluginwrapper-1.3.0-9.el5.i386.rpm
spice-usb-redirector-4.5-2.el5_5.i386.rpm
strace-4.5.18-5.el5_5.5.i386.rpm
xen-3.0.3-105.el5_5.3.i386.rpm
xen-devel-3.0.3-105.el5_5.3.i386.rpm
xen-libs-3.0.3-105.el5_5.3.i386.rpm
 x86_64:
device-mapper-1.02.39-1.el5_5.2.i386.rpm
device-mapper-1.02.39-1.el5_5.2.x86_64.rpm
device-mapper-event-1.02.39-1.el5_5.2.x86_64.rpm
glibc-2.5-49.el5_5.2.i686.rpm
glibc-2.5-49.el5_5.2.x86_64.rpm
glibc-common-2.5-49.el5_5.2.x86_64.rpm
glibc-devel-2.5-49.el5_5.2.i386.rpm
glibc-devel-2.5-49.el5_5.2.x86_64.rpm
glibc-headers-2.5-49.el5_5.2.x86_64.rpm
glibc-utils-2.5-49.el5_5.2.x86_64.rpm
gnome-vfs2-2.16.2-6.el5_5.1.x86_64.rpm
gnome-vfs2-devel-2.16.2-6.el5_5.1.x86_64.rpm
gnome-vfs2-smb-2.16.2-6.el5_5.1.x86_64.rpm
kexec-tools-1.102pre-96.el5_5.1.x86_64.rpm
kexec-tools-1.102pre-96.el5_5.2.x86_64.rpm
kmod-spice-usb-redirector-4.5-2.el5_5.x86_64.rpm
lvm2-2.02.56-8.el5_5.1.x86_64.rpm
nscd-2.5-49.el5_5.2.x86_64.rpm
nspluginwrapper-1.3.0-9.el5.i386.rpm
nspluginwrapper-1.3.0-9.el5.x86_64.rpm
spice-usb-redirector-4.5-2.el5_5.x86_64.rpm
strace-4.5.18-5.el5_5.5.x86_64.rpm
xen-3.0.3-105.el5_5.3.x86_64.rpm
xen-devel-3.0.3-105.el5_5.3.i386.rpm
xen-devel-3.0.3-105.el5_5.3.x86_64.rpm
xen-libs-3.0.3-105.el5_5.3.i386.rpm
xen-libs-3.0.3-105.el5_5.3.x86_64.rpm

-Connie Sieh
-Troy Dawson
Date: Tue, 8 Jun 2010 11:20:18 -0500
Reply-To: Troy Dawson 
Sender: Security Errata for Scientific Linux
 
From: Troy Dawson 
Subject: Security ERRATA Moderate: perl on SL5.x i386/x86_64
Comments: To: "This email address is being protected from spambots. You need JavaScript enabled to view it."
 

Synopsis:	Moderate: perl security update
Issue date:	2010-06-07
CVE Names:	CVE-2008-5302 CVE-2008-5303 CVE-2010-1168
 CVE-2010-1447

Perl is a high-level programming language commonly used for system
administration utilities and web programming. The Safe extension module
allows users to compile and execute Perl code in restricted
compartments. The File::Path module allows users to create and remove
directory trees.

The Safe module did not properly restrict the code of implicitly called
methods (such as DESTROY and AUTOLOAD) on implicitly blessed objects
returned as a result of unsafe code evaluation. These methods could have
been executed unrestricted by Safe when such objects were accessed or
destroyed. A specially-crafted Perl script executed inside of a Safe
compartment could use this flaw to bypass intended Safe module
restrictions. (CVE-2010-1168)

The Safe module did not properly restrict code compiled in a Safe
compartment and executed out of the compartment via a subroutine
reference returned as a result of unsafe code evaluation. A
specially-crafted Perl script executed inside of a Safe compartment
could use this flaw to bypass intended Safe module restrictions, if the
returned subroutine reference was called from outside of the
compartment. (CVE-2010-1447)

Multiple race conditions were found in the way the File::Path module's
rmtree function removed directory trees. A malicious, local user with
write access to a directory being removed by a victim, running a Perl
script using rmtree, could cause the permissions of arbitrary files to
be changed to world-writable and setuid, or delete arbitrary files via a
symbolic link attack, if the victim had the privileges to change the
permissions of the target files or to remove them. (CVE-2008-5302,
CVE-2008-5303)

These packages upgrade the Safe extension module to version 2.27. Refer
to the Safe module's Changes file at the following link for a full list
of changes.

All applications using the Safe or File::Path modules must be restarted
for this update to take effect.

NOTE: SL 50-52 x86_64 releases originally had a perl.i386 package. It
was taken out of the x86_64 SL5 distribution and is not part of this
security update. If you have one of these earlier SL5 x86_64
distributions and your perl update does not work due to conflicts, you
should do a "yum remove perl.i386" before doing your update on these
earlier SL 5 x86_64 releases.

SL 5.x

 SRPMS:
perl-5.8.8-32.el5_5.1.src.rpm
 i386:
perl-5.8.8-32.el5_5.1.i386.rpm
perl-suidperl-5.8.8-32.el5_5.1.i386.rpm
 x86_64:
perl-5.8.8-32.el5_5.1.x86_64.rpm
perl-suidperl-5.8.8-32.el5_5.1.x86_64.rpm

-Connie Sieh
-Troy Dawson