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Vulnerability of RHEL: privilege escalation via PostgreSQL PGLOG

Synthesis of the vulnerability 

An attacker can bypass restrictions via PostgreSQL PGLOG of RHEL, in order to escalate his privileges.
Impacted software: RHEL.
Severity of this computer vulnerability: 1/4.
Creation date: 08/12/2017.
Références of this announce: 1508985, CVE-2017-15097, RHSA-2017:3402-01, RHSA-2017:3403-01, RHSA-2017:3404-01, RHSA-2017:3405-01, VIGILANCE-VUL-24700.

Description of the vulnerability 

An attacker can bypass restrictions via PostgreSQL PGLOG of RHEL, in order to escalate his privileges.
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This weakness impacts software or systems such as RHEL.

Our Vigil@nce team determined that the severity of this vulnerability announce is low.

The trust level is of type confirmed by the editor, with an origin of privileged shell.

An attacker with a expert ability can exploit this threat bulletin.

Solutions for this threat 

RHEL: new postgresql packages.
New packages are available:
  RHEL 6: rh-postgresql94-postgresql 9.4.14-2.el6, rh-postgresql95-postgresql 9.5.9-4.el6, rh-postgresql96-postgresql 9.6.5-2.el6
  RHEL 7: postgresql 9.2.23-3.el7_4, rh-postgresql95-postgresql 9.5.9-4.el7, rh-postgresql96-postgresql 9.6.5-2.el7, rh-postgresql94-postgresql 9.4.14-2.el7
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