[ASA-202102-31] postgresql: information disclosure
foxboron at archlinux.org
Thu Feb 25 08:44:27 UTC 2021
Arch Linux Security Advisory ASA-202102-31
Date : 2021-02-20
CVE-ID : CVE-2021-3393 CVE-2021-20229
Package : postgresql
Type : information disclosure
Remote : Yes
Link : https://security.archlinux.org/AVG-1567
The package postgresql before version 13.2-1 is vulnerable to
Upgrade to 13.2-1.
# pacman -Syu "postgresql>=13.2-1"
The problems have been fixed upstream in version 13.2.
- CVE-2021-3393 (information disclosure)
A security issue was found in PostgreSQL 11 to 13 before version 13.2.
A user having an UPDATE privilege on a partitioned table but lacking
the SELECT privilege on some column may be able to acquire denied-
column values from an error message. This is similar to CVE-2014-8161,
but the conditions to exploit are more rare.
- CVE-2021-20229 (information disclosure)
A security issue was found in PostgreSQL 13 before version 13.2. A
user having a SELECT privilege on an individual column can craft a
special query that returns all columns of the table. Additionally, a
stored view that uses column-level privileges will have incomplete
column-usage bitmaps. In installations that depend on column-level
permissions for security, it is recommended to execute CREATE OR
REPLACE on all user-defined views to force them to be re-parsed.
A remote, authenticated user is able to disclose information by
executing crafted SQL queries.
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