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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.- An OpenSSL TLS server may crash if sent a maliciously crafted renegotiation ClientHello message from a client. If a TLSv1.2 renegotiation ClientHello omits the signature_algorithms extension (where it was present in the initial ClientHello), but includes a signature_algorithms_cert extension then a NULL pointer dereference will result, leading to a crash and a denial of service attack. A server is only vulnerable if it has TLSv1.2 and renegotiation enabled (which is the default configuration). OpenSSL TLS clients are not impacted by this issue. All OpenSSL 1.1.1 versions are affected by this issue. Users of these versions should upgrade to OpenSSL 1.1.1k. OpenSSL 1.0.2 is not impacted by this issue. Fixed in OpenSSL 1.1.1k (Affected 1.1.1-1.1.1j). (CVE-2021-3449)
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: 1.5
Type: local
Agent: unix
Family: Debian Local Security Checks
Published: 9/2/2021
Updated: 12/1/2023
Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 5.1
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.6
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: 5.5
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:F/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