This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============0866083167605243513==
Content-Type: multipart/signed; micalg=pgp-sha256;
 protocol="application/pgp-signature";
 boundary="vjxBCzkBqVgZgjhgLKEfPUrfNVDhAT7Ty"

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--vjxBCzkBqVgZgjhgLKEfPUrfNVDhAT7Ty
Content-Type: multipart/mixed;
 boundary="UM4io0fDuomfFqbHP9o9u95UjjaTyg5pl";
 protected-headers="v1"
From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: "ubuntu-security-announce@lists.ubuntu.com"
 <ubuntu-security-announce@lists.ubuntu.com>
Message-ID: <aff6de0e-dcc2-b7da-e35a-ad2d904464ea@canonical.com>
Subject: [USN-4972-1] PostgreSQL vulnerabilities

--UM4io0fDuomfFqbHP9o9u95UjjaTyg5pl
Content-Type: text/plain; charset=utf-8
Content-Language: en-C
Content-Transfer-Encoding: quoted-printable

==========================================================================
Ubuntu Security Notice USN-4972-1
June 01, 2021

postgresql-10, postgresql-12, postgresql-13 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.04
- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in PostgreSQL.

Software Description:
- postgresql-13: Object-relational SQL database
- postgresql-12: Object-relational SQL database
- postgresql-10: Object-relational SQL database

Details:

Tom Lane discovered that PostgreSQL incorrect handled certain array
subscripting calculations. An authenticated attacker could possibly use
this issue to overwrite server memory and escalate privileges.
(CVE-2021-32027)

Andres Freund discovered that PostgreSQL incorrect handled certain
INSERT ... ON CONFLICT ... DO UPDATE commands. A remote attacker could
possibly use this issue to read server memory and obtain sensitive
information. (CVE-2021-32028)

Tom Lane discovered that PostgreSQL incorrect handled certain UPDATE ...
RETURNING commands. A remote attacker could possibly use this issue to read
server memory and obtain sensitive information. This issue only affected
Ubuntu 20.04 LTS, Ubuntu 20.10, and Ubuntu 21.04. (CVE-2021-32029)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 21.04:
  postgresql-13                   13.3-0ubuntu0.21.04.1

Ubuntu 20.10:
  postgresql-12                   12.7-0ubuntu0.20.10.1

Ubuntu 20.04 LTS:
  postgresql-12                   12.7-0ubuntu0.20.04.1

Ubuntu 18.04 LTS:
  postgresql-10                   10.17-0ubuntu0.18.04.1

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart PostgreSQL to
make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-4972-1
  CVE-2021-32027, CVE-2021-32028, CVE-2021-32029

Package Information:
  https://launchpad.net/ubuntu/+source/postgresql-13/13.3-0ubuntu0.21.04.1
  https://launchpad.net/ubuntu/+source/postgresql-12/12.7-0ubuntu0.20.10.1
  https://launchpad.net/ubuntu/+source/postgresql-12/12.7-0ubuntu0.20.04.1
  https://launchpad.net/ubuntu/+source/postgresql-10/10.17-0ubuntu0.18.04.1


--UM4io0fDuomfFqbHP9o9u95UjjaTyg5pl--

--vjxBCzkBqVgZgjhgLKEfPUrfNVDhAT7Ty
Content-Type: application/pgp-signature; name="OpenPGP_signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="OpenPGP_signature"

-----BEGIN PGP SIGNATURE-----

iQIzBAEBCgAdFiEEUMSg3c8x5FLOsZtRZWnYVadEvpMFAmC2Mm0ACgkQZWnYVadE
vpM/9w/+NlD7RvAEB1gOzziDNGoOBHXAdT+30CEOVX0UG9ka3/4tJeuJEPrI9oOI
QBMG69eUxqorMKBoW+yVbGA3+NjlAx6Zzjhe/VHhdHkLeuAxBoQz3Pw6elrg0Z2x
pROnthDgsuWOOo00jof+vICAkYkXKsXoxkzkdm3MCS8i5aAp+Dp5fDGMFUPW1EOS
4K0T+51g8wbx+Lyvtku12+UQ0DhA/+F3ogrPT//F4sojifDjlwzl7yZvg6eWYF5k
l2fNHr9nLnG9ZLK2rgQCqZOfVKIWZXJnIDz1C9qdmnFbTztoCtlh+SFLVe7ErsZy
tFemYPwYwSFZApAGkBDVbVrY2TLTBAkjzxw4QABMBGvMU/AbmOsXS2mvaYz6Cfy+
9SseglwdqRfkXeMvcYgunBVPm75lY8pP1gAyugERRGLe8aqZdx0t/B7GQoEf2bd/
dDDC0ISQgLfKqtUurx8qnh6P6bdjS24qaoW/5un7/tfhxYE5SbowK9ebXo7ZbJVR
4A1vhNORY7VMEbzLM+X2JTJv+XnQOjP26J9WirWpyrfVKVFwqqJQSurTn6E50paL
4oxh1SSL4TL7k+Kw98n7A6dVSO8WfTXuZLKEyPLTbJnwm1AHCOSqqfy2+EH9iuQM
EhWpq/iNI9GElBMqva6ckGpdG2k2TgXJiuh7jvN0sMhhrXiQC9U=
=DCxZ
-----END PGP SIGNATURE-----

--vjxBCzkBqVgZgjhgLKEfPUrfNVDhAT7Ty--


--===============0866083167605243513==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline

LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5
LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl
IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj
dXJpdHktYW5ub3VuY2UK

--===============0866083167605243513==--