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vulnerability bulletin CVE-2017-7546 CVE-2017-7547 CVE-2017-7548

PostgreSQL: three vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of PostgreSQL.
Impacted products: Debian, Fedora, openSUSE Leap, PostgreSQL, RHEL, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity: 2/4.
Creation date: 10/08/2017.
Identifiers: CVE-2017-7546, CVE-2017-7547, CVE-2017-7548, DLA-1051-1, DSA-3935-1, DSA-3936-1, FEDORA-2017-9148fe36b9, FEDORA-2017-d9cac37bd8, FEDORA-2017-f9e66916ec, openSUSE-SU-2017:2306-1, openSUSE-SU-2017:2391-1, openSUSE-SU-2017:2392-1, RHSA-2017:2677-01, RHSA-2017:2678-01, RHSA-2017:2728-01, RHSA-2017:2860-01, SUSE-SU-2017:2236-1, SUSE-SU-2017:2258-1, SUSE-SU-2017:2355-1, SUSE-SU-2017:2356-1, USN-3390-1, VIGILANCE-VUL-23493.

Description of the vulnerability

Several vulnerabilities were announced in PostgreSQL.

An attacker can bypass security features via Libpq Empty Passwords, in order to escalate his privileges. [severity:2/4; CVE-2017-7546]

An attacker can bypass security features via pg_user_mappings.umoptions, in order to obtain sensitive information. [severity:2/4; CVE-2017-7547]

An attacker can bypass security features via lo_put(), in order to escalate his privileges. [severity:2/4; CVE-2017-7548]
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