Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2023-5870

Published: 15 November 2023

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-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.

Notes

AuthorNote
leosilva
PostgreSQL 9.3 is end of life upstream, and no updates are
are available. Marking as deferred in -esm-main releases.

Priority

Medium

Cvss 3 Severity Score

4.4

Score breakdown

Status

Package Release Status
postgresql-14
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy
Released (14.10-0ubuntu0.22.04.1)
lunar Does not exist

mantic Does not exist

upstream
Released (14.10)
postgresql-12
Launchpad, Ubuntu, Debian
trusty Ignored
(end of standard support)
xenial Does not exist

bionic Does not exist

focal
Released (12.17-0ubuntu0.20.04.1)
jammy Does not exist

lunar Does not exist

mantic Does not exist

upstream
Released (12.17)
postgresql-10
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic
Released (10.23-0ubuntu0.18.04.2+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
focal Does not exist

jammy Does not exist

lunar Does not exist

mantic Does not exist

upstream Needs triage

postgresql-9.5
Launchpad, Ubuntu, Debian
trusty Does not exist

bionic Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

mantic Does not exist

upstream Needs triage

xenial
Released (9.5.25-0ubuntu0.16.04.1+esm6)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
postgresql-9.3
Launchpad, Ubuntu, Debian
trusty Deferred
(2019-08-23)
xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

mantic Does not exist

upstream Needs triage

postgresql-9.1
Launchpad, Ubuntu, Debian
trusty Ignored
(end of standard support)
xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

mantic Does not exist

upstream Needs triage

postgresql-15
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Does not exist

upstream
Released (15.5)
lunar
Released (15.5-0ubuntu0.23.04.1)
mantic
Released (15.5-0ubuntu0.23.10.1)
postgresql-16
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

mantic Does not exist

upstream
Released (16.1)

Severity score breakdown

Parameter Value
Base score 4.4
Attack vector Network
Attack complexity High
Privileges required High
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H