Summary
USN-6538-1 fixed several vulnerabilities in PostgreSQL. This update provides
the corresponding updates for Ubuntu 18.04 LTS.
Original advisory details:
Jingzhou Fu discovered that PostgreSQL incorrectly handled certain unknown
arguments in aggregate function calls. A remote attacker could possibly use
this issue to obtain sensitive information. (CVE-2023-5868)
Pedro Gallegos discovered that PostgreSQL incorrectly handled modifying
certain SQL array values. A remote attacker could use this issue to obtain
sensitive information, or possibly execute arbitrary code. (CVE-2023-5869)
Hemanth Sandrana and Mahendrakar Srinivasarao discovered that PostgreSQL
allowed the pg_signal_backend role to signal certain superuser processes,
contrary to expectations. (CVE-2023-5870)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | postgresql-10 | 10.23-0ubuntu0.18.04.2+esm1 |
Vulnerabilities 3
-
High 8.8
Postgresql: buffer overrun from integer overflow in array modification
A flaw was found in PostgreSQL that allows authenticated database users to execute arbitrary code through missing overflow checks during SQL array value modification. This issue exists due to an integer overflow during array modification where a remote user c…
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Medium 4.3
Postgresql: memory disclosure in aggregate function calls
A memory disclosure vulnerability was found in PostgreSQL that allows remote users to access sensitive information by exploiting certain aggregate function calls with 'unknown'-type arguments. Handling 'unknown'-type values from string literals without type d…
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Low 2.2
Postgresql: role pg_signal_backend can signal certain superuser processes.
A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less…