Advisories ยป MGASA-2019-0189

Updated postgresql packages fix security vulnerabilities

Publication date: 10 Jun 2019
Modification date: 10 Jun 2019
Type: security
Affected Mageia releases : 6
CVE: CVE-2019-10129 , CVE-2019-10130

Description

Updated postgresql packages fix security vulnerabilities

CVE-2019-10129: Memory disclosure in partition routing
Prior to this release, a user running PostgreSQL 11 can read arbitrary
bytes of server memory by executing a purpose-crafted INSERT statement
to a partitioned table.

CVE-2019-10130: Selectivity estimators bypass row security policies
PostgreSQL maintains statistics for tables by sampling data available in
columns; this data is consulted during the query planning process. Prior
to this release, a user able to execute SQL queries with permissions to
read a given column could craft a leaky operator that could read whatever
data had been sampled from that column. If this happened to include values
from rows that the user is forbidden to see by a row security policy, the
user could effectively bypass the policy. This is fixed by only allowing
a non-leakproof operator to use this data if there are no relevant row
security policies for the table.

References

SRPMS

6/core