CVE-2020-21469
Published: 22 August 2023
** DISPUTED ** An issue was discovered in PostgreSQL 12.2 allows attackers to cause a denial of service via repeatedly sending SIGHUP signals. NOTE: this is disputed by the vendor because untrusted users cannot send SIGHUP signals; they can only be sent by a PostgreSQL superuser, a user with pg_reload_conf access, or a user with sufficient privileges at the OS level (the postgres account or the root account).
Notes
| Author | Note |
|---|---|
| leosilva | PostgreSQL 9.3 is end of life upstream, and no updates are are available. Marking as deferred in -esm-main releases. |
| mdeslaur | This is an old issue that was fixed in 2019 upstream |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
postgresql-10 Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Does not exist
|
|
| jammy |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
postgresql-12 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Released
(12.5-0ubuntu0.20.04.1)
|
|
| jammy |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Released
(12.5)
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: https://git.postgresql.org/gitweb/?p=postgresql.git&a=commitdiff&h=9abb2bfc0 |
||
|
postgresql-14 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| jammy |
Not vulnerable
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Not vulnerable
|
|
| xenial |
Does not exist
|
|
|
postgresql-9.1 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| jammy |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
postgresql-9.3 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| jammy |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Deferred
(2019-08-23)
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
postgresql-9.5 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| jammy |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 4.4 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | High |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |