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Debian DLA-2751-1 : postgresql-9.6 - LTS security update
medium Nessus Plugin ID 152966
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Synopsis
The remote Debian host is missing a security-related update.Description
The remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-2751 advisory.PostgreSQL 9.6.23 fixes this security issue: Disallow SSL renegotiation more completely (Michael Paquier) SSL renegotiation has been disabled for some time, but the server would still cooperate with a client- initiated renegotiation request. A maliciously crafted renegotiation request could result in a server crash (see OpenSSL issue CVE-2021-3449). Disable the feature altogether on OpenSSL versions that permit doing so, which are 1.1.0h and newer. For Debian 9 stretch, this problem has been fixed in version 9.6.23-0+deb9u1. We recommend that you upgrade your postgresql-9.6 packages. For the detailed security status of postgresql-9.6 please refer to its security tracker page at: https://security- tracker.debian.org/tracker/postgresql-9.6 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at:
https://wiki.debian.org/LTS
Tenable has extracted the preceding description block directly from the Debian security advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
Upgrade the postgresql-9.6 packages.For Debian 9 stretch, this problem has been fixed in version 9.6.23-0+deb9u1.
See Also
http://www.nessus.org/u?350b32e8
https://www.debian.org/lts/security/2021/dla-2751
Plugin Details
Severity: Medium
ID: 152966
File Name: debian_DLA-2751.nasl
Version: 1.6
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 9/2/2021
Updated: 1/24/2025
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.1
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.4
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2021-3449
CVSS v3
Risk Factor: Medium
Base Score: 5.9
Temporal Score: 5.3
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:debian:debian_linux:libecpg-compat3, p-cpe:/a:debian:debian_linux:libecpg6, p-cpe:/a:debian:debian_linux:libecpg-dev, p-cpe:/a:debian:debian_linux:libpq5, p-cpe:/a:debian:debian_linux:postgresql-plpython-9.6, p-cpe:/a:debian:debian_linux:postgresql-client-9.6, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:postgresql-9.6, p-cpe:/a:debian:debian_linux:postgresql-doc-9.6, p-cpe:/a:debian:debian_linux:postgresql-pltcl-9.6, p-cpe:/a:debian:debian_linux:libpq-dev, p-cpe:/a:debian:debian_linux:postgresql-plperl-9.6, p-cpe:/a:debian:debian_linux:postgresql-server-dev-9.6, p-cpe:/a:debian:debian_linux:postgresql-9.6-dbg, p-cpe:/a:debian:debian_linux:postgresql-contrib-9.6, p-cpe:/a:debian:debian_linux:libpgtypes3, p-cpe:/a:debian:debian_linux:postgresql-plpython3-9.6
Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 8/31/2021
Vulnerability Publication Date: 3/25/2021
Reference Information
CVE: CVE-2021-3449
IAVA: 2021-A-0149-S, 2021-A-0193-S