RHSA-2015:2083 - Security Advisory

Topic

Updated postgresql92-postgresql packages that fix two security issues
are now available for Red Hat Software Collections 2.

Red Hat Product Security has rated this update as having Moderate security
impact. Common Vulnerability Scoring System (CVSS) base scores, which give
detailed severity ratings, are available for each vulnerability from the
CVE links in the References section.

Description

PostgreSQL is an advanced object-relational database management system
(DBMS).

A memory leak error was discovered in the crypt() function of the pgCrypto
extension. An authenticated attacker could possibly use this flaw to
disclose a limited amount of the server memory. (CVE-2015-5288)

A stack overflow flaw was discovered in the way the PostgreSQL core server
processed certain JSON or JSONB input. An authenticated attacker could
possibly use this flaw to crash the server backend by sending specially
crafted JSON or JSONB input. (CVE-2015-5289)

Please note that SSL renegotiation is now disabled by default. For more
information, please refer to PostgreSQL's 2015-10-08 Security Update
Release notes, linked to in the References section.

All PostgreSQL users are advised to upgrade to these updated packages,
which correct these issues. If the postgresql92-postgresql service is
running, it will be automatically restarted after installing this update.

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 Software Collections (for RHEL Server) 1 for RHEL 7.7 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.6 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.5 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.4 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.3 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.2 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7.1 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6.7 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6.6 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6.5 x86_64
• Red Hat Software Collections (for RHEL Server) 1 for RHEL 6 x86_64
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 6 x86_64
• Red Hat Software Collections (for RHEL Server) from RHUI 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Server) from RHUI 1 for RHEL 6 x86_64

Fixes

• BZ - 1270306 - CVE-2015-5288 postgresql: limited memory disclosure flaw in crypt()
• BZ - 1270312 - CVE-2015-5289 postgresql: stack overflow DoS when parsing json or jsonb inputs

CVEs

• CVE-2015-5288
• CVE-2015-5289

References

• https://access.redhat.com/security/updates/classification/#moderate
• http://www.postgresql.org/about/news/1615/