RHSA-2015:2504 - Security Advisory

Topic

Updated libreport packages that fix one security issue are now available
for Red Hat Enterprise Linux 6.

Red Hat Product Security 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.

Description

libreport provides an API for reporting different problems in applications
to different bug targets, such as Bugzilla, FTP, and Trac. ABRT (Automatic
Bug Reporting Tool) uses libreport.

It was found that ABRT may have exposed unintended information to Red Hat
Bugzilla during crash reporting. A bug in the libreport library caused
changes made by a user in files included in a crash report to be discarded.
As a result, Red Hat Bugzilla attachments may contain data that was not
intended to be made public, including host names, IP addresses, or command
line options. (CVE-2015-5302)

This flaw did not affect default installations of ABRT on Red Hat
Enterprise Linux as they do not post data to Red Hat Bugzilla. This feature
can however be enabled, potentially impacting modified ABRT instances.

As a precaution, Red Hat has identified bugs filed by such non-default Red
Hat Enterprise Linux users of ABRT and marked them private.

This issue was discovered by Bastien Nocera of Red Hat.

All users of libreport are advised to upgrade to these updated packages,
which corrects this issue.

Solution

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

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.7 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support 6.7 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 6.7 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Power, big endian - Extended Update Support 6.7 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.7 x86_64
• Red Hat Enterprise Linux Server - Extended Update Support from RHUI 6.7 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux EUS Compute Node 6.7 x86_64
• Red Hat Enterprise Linux for SAP Solutions for x86_64 - Extended Update Support 6.7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x

Fixes

• BZ - 1270903 - CVE-2015-5302 libreport: Possible private data leak in Bugzilla bugs opened by ABRT

CVEs

• CVE-2015-5302

References

• https://access.redhat.com/security/updates/classification/#moderate