7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
0.28 Low
EPSS
Percentile
96.9%
Issue Overview:
pg_user_mappings view discloses passwords to users lacking server privileges:
An authorization flaw was found in the way PostgreSQL handled access to the pg_user_mappings view on foreign servers. A remote authenticated attacker could potentially use this flaw to retrieve passwords from the user mappings defined by the foreign server owners without actually having the privileges to do so. (CVE-2017-7547)
Empty password accepted in some authentication methods:
It was found that authenticating to a PostgreSQL database account with an empty password was possible despite libpq’s refusal to send an empty password. A remote attacker could potentially use this flaw to gain access to database accounts with empty passwords. (CVE-2017-7546)
lo_put() function ignores ACLs:
An authorization flaw was found in the way PostgreSQL handled large objects. A remote authenticated attacker with no privileges on a large object could potentially use this flaw to overwrite the entire content of the object, thus resulting in denial of service. (CVE-2017-7548)
Affected Packages:
postgresql94, postgresql95
Issue Correction:
Run yum update postgresql94 to update your system.
Run yum update postgresql95 to update your system.
New Packages:
i686:
postgresql94-plpython26-9.4.13-1.69.amzn1.i686
postgresql94-contrib-9.4.13-1.69.amzn1.i686
postgresql94-plperl-9.4.13-1.69.amzn1.i686
postgresql94-server-9.4.13-1.69.amzn1.i686
postgresql94-devel-9.4.13-1.69.amzn1.i686
postgresql94-9.4.13-1.69.amzn1.i686
postgresql94-libs-9.4.13-1.69.amzn1.i686
postgresql94-plpython27-9.4.13-1.69.amzn1.i686
postgresql94-test-9.4.13-1.69.amzn1.i686
postgresql94-debuginfo-9.4.13-1.69.amzn1.i686
postgresql94-docs-9.4.13-1.69.amzn1.i686
postgresql95-debuginfo-9.5.8-1.73.amzn1.i686
postgresql95-test-9.5.8-1.73.amzn1.i686
postgresql95-plperl-9.5.8-1.73.amzn1.i686
postgresql95-libs-9.5.8-1.73.amzn1.i686
postgresql95-plpython26-9.5.8-1.73.amzn1.i686
postgresql95-static-9.5.8-1.73.amzn1.i686
postgresql95-devel-9.5.8-1.73.amzn1.i686
postgresql95-contrib-9.5.8-1.73.amzn1.i686
postgresql95-server-9.5.8-1.73.amzn1.i686
postgresql95-plpython27-9.5.8-1.73.amzn1.i686
postgresql95-docs-9.5.8-1.73.amzn1.i686
postgresql95-9.5.8-1.73.amzn1.i686
src:
postgresql94-9.4.13-1.69.amzn1.src
postgresql95-9.5.8-1.73.amzn1.src
x86_64:
postgresql94-9.4.13-1.69.amzn1.x86_64
postgresql94-debuginfo-9.4.13-1.69.amzn1.x86_64
postgresql94-plpython27-9.4.13-1.69.amzn1.x86_64
postgresql94-devel-9.4.13-1.69.amzn1.x86_64
postgresql94-docs-9.4.13-1.69.amzn1.x86_64
postgresql94-plpython26-9.4.13-1.69.amzn1.x86_64
postgresql94-test-9.4.13-1.69.amzn1.x86_64
postgresql94-plperl-9.4.13-1.69.amzn1.x86_64
postgresql94-server-9.4.13-1.69.amzn1.x86_64
postgresql94-contrib-9.4.13-1.69.amzn1.x86_64
postgresql94-libs-9.4.13-1.69.amzn1.x86_64
postgresql95-9.5.8-1.73.amzn1.x86_64
postgresql95-libs-9.5.8-1.73.amzn1.x86_64
postgresql95-contrib-9.5.8-1.73.amzn1.x86_64
postgresql95-docs-9.5.8-1.73.amzn1.x86_64
postgresql95-plperl-9.5.8-1.73.amzn1.x86_64
postgresql95-devel-9.5.8-1.73.amzn1.x86_64
postgresql95-test-9.5.8-1.73.amzn1.x86_64
postgresql95-plpython26-9.5.8-1.73.amzn1.x86_64
postgresql95-plpython27-9.5.8-1.73.amzn1.x86_64
postgresql95-server-9.5.8-1.73.amzn1.x86_64
postgresql95-debuginfo-9.5.8-1.73.amzn1.x86_64
postgresql95-static-9.5.8-1.73.amzn1.x86_64
Red Hat: CVE-2017-7546, CVE-2017-7547, CVE-2017-7548
Mitre: CVE-2017-7546, CVE-2017-7547, CVE-2017-7548
7.5 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
0.28 Low
EPSS
Percentile
96.9%