Ubuntu Security Notice 3744-1 - Andrew Krasichkov discovered that the PostgreSQL client library incorrectly reset its internal state between connections. A remote attacker could possibly use this issue to bypass certain client-side connection security features. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. It was discovered that PostgreSQL incorrectly checked authorization on certain statements. A remote attacker could possibly use this issue to read arbitrary server memory or alter certain data. Various other issues were also addressed.
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Ubuntu Security Notice USN-3744-1
August 16, 2018
postgresql-10, postgresql-9.3, postgresql-9.5 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in PostgreSQL.
Software Description:
- postgresql-10: object-relational SQL database
- postgresql-9.5: Object-relational SQL database
- postgresql-9.3: Object-relational SQL database
Details:
Andrew Krasichkov discovered that the PostgreSQL client library incorrectly
reset its internal state between connections. A remote attacker could
possibly use this issue to bypass certain client-side connection security
features. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
(CVE-2018-10915)
It was discovered that PostgreSQL incorrectly checked authorization on
certain statements. A remote attacker could possibly use this issue to
read arbitrary server memory or alter certain data. (CVE-2018-10925)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.04 LTS:
postgresql-10 10.5-0ubuntu0.18.04
Ubuntu 16.04 LTS:
postgresql-9.5 9.5.14-0ubuntu0.16.04
Ubuntu 14.04 LTS:
postgresql-9.3 9.3.24-0ubuntu0.14.04
This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart PostgreSQL to
make all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3744-1
CVE-2018-10915, CVE-2018-10925
Package Information:
https://launchpad.net/ubuntu/+source/postgresql-10/10.5-0ubuntu0.18.04
https://launchpad.net/ubuntu/+source/postgresql-9.5/9.5.14-0ubuntu0.16.04
https://launchpad.net/ubuntu/+source/postgresql-9.3/9.3.24-0ubuntu0.14.04