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Security Advisory Moderate: python-paste-script security update

Advisory: RHSA-2012:1206-1
Type: Security Advisory
Severity: Moderate
Issued on: 2012-08-27
Last updated on: 2012-08-27
Affected Products: Red Hat Enterprise Linux Server (v. 6)
Red Hat Enterprise Linux Server EUS (v. 6.3.z)
Red Hat Enterprise Linux Workstation (v. 6)
CVEs (cve.mitre.org): CVE-2012-0878

Details

An updated python-paste-script package that fixes one security issue is now
available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

Python Paste provides middleware for building and running Python web
applications. The python-paste-script package includes paster, a tool for
working with and running Python Paste applications.

It was discovered that paster did not drop supplementary group privileges
when started by the root user. Running "paster serve" as root to start a
Python web application that will run as a non-root user and group resulted
in that application running with root group privileges. This could possibly
allow a remote attacker to gain access to files that should not be
accessible to the application. (CVE-2012-0878)

All paster users should upgrade to this updated package, which contains a
backported patch to resolve this issue. All running paster instances
configured to drop privileges must be restarted for this update to take
effect.


Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Updated packages

Red Hat Enterprise Linux Server (v. 6)

SRPMS:
python-paste-script-1.7.3-5.el6_3.src.rpm     MD5: c5aa5db1cf07e5af52fc196303d946fb
SHA-256: 8fd89859fff46dcd9d245ede499596b4bb6fb847881ad24f46bc5c8a6c1bacd3
 
IA-32:
python-paste-script-1.7.3-5.el6_3.noarch.rpm     MD5: 6153617f8a14e02d6af3a5ca76a2fdac
SHA-256: dec6b6286b6316becf1a73fdd020e14a8143cd450822d7e561705f2966835c36
 
PPC:
python-paste-script-1.7.3-5.el6_3.noarch.rpm     MD5: 6153617f8a14e02d6af3a5ca76a2fdac
SHA-256: dec6b6286b6316becf1a73fdd020e14a8143cd450822d7e561705f2966835c36
 
s390x:
python-paste-script-1.7.3-5.el6_3.noarch.rpm     MD5: 6153617f8a14e02d6af3a5ca76a2fdac
SHA-256: dec6b6286b6316becf1a73fdd020e14a8143cd450822d7e561705f2966835c36
 
x86_64:
python-paste-script-1.7.3-5.el6_3.noarch.rpm     MD5: 6153617f8a14e02d6af3a5ca76a2fdac
SHA-256: dec6b6286b6316becf1a73fdd020e14a8143cd450822d7e561705f2966835c36
 
Red Hat Enterprise Linux Server EUS (v. 6.3.z)

SRPMS:
python-paste-script-1.7.3-5.el6_3.src.rpm     MD5: c5aa5db1cf07e5af52fc196303d946fb
SHA-256: 8fd89859fff46dcd9d245ede499596b4bb6fb847881ad24f46bc5c8a6c1bacd3
 
IA-32:
python-paste-script-1.7.3-5.el6_3.noarch.rpm     MD5: 6153617f8a14e02d6af3a5ca76a2fdac
SHA-256: dec6b6286b6316becf1a73fdd020e14a8143cd450822d7e561705f2966835c36
 
PPC:
python-paste-script-1.7.3-5.el6_3.noarch.rpm     MD5: 6153617f8a14e02d6af3a5ca76a2fdac
SHA-256: dec6b6286b6316becf1a73fdd020e14a8143cd450822d7e561705f2966835c36
 
s390x:
python-paste-script-1.7.3-5.el6_3.noarch.rpm     MD5: 6153617f8a14e02d6af3a5ca76a2fdac
SHA-256: dec6b6286b6316becf1a73fdd020e14a8143cd450822d7e561705f2966835c36
 
x86_64:
python-paste-script-1.7.3-5.el6_3.noarch.rpm     MD5: 6153617f8a14e02d6af3a5ca76a2fdac
SHA-256: dec6b6286b6316becf1a73fdd020e14a8143cd450822d7e561705f2966835c36
 
Red Hat Enterprise Linux Workstation (v. 6)

SRPMS:
python-paste-script-1.7.3-5.el6_3.src.rpm     MD5: c5aa5db1cf07e5af52fc196303d946fb
SHA-256: 8fd89859fff46dcd9d245ede499596b4bb6fb847881ad24f46bc5c8a6c1bacd3
 
IA-32:
python-paste-script-1.7.3-5.el6_3.noarch.rpm     MD5: 6153617f8a14e02d6af3a5ca76a2fdac
SHA-256: dec6b6286b6316becf1a73fdd020e14a8143cd450822d7e561705f2966835c36
 
x86_64:
python-paste-script-1.7.3-5.el6_3.noarch.rpm     MD5: 6153617f8a14e02d6af3a5ca76a2fdac
SHA-256: dec6b6286b6316becf1a73fdd020e14a8143cd450822d7e561705f2966835c36
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

796790 - CVE-2012-0878 python-paste-script: Supplementary groups not dropped when started an application with "paster serve" as root


References



These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:
https://www.redhat.com/security/team/key/#package

The Red Hat security contact is secalert@redhat.com. More contact details at http://www.redhat.com/security/team/contact/