Linux Distros Unpatched Vulnerability : CVE-2023-45287

high Nessus Plugin ID 226570

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

- Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective.
In particular it appears as if the removal of PKCS#1 padding may leak timing information, which in turn could be used to recover session key bits. In Go 1.20, the crypto/tls library switched to a fully constant time RSA implementation, which we do not believe exhibits any timing side channels. (CVE-2023-45287)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

Plugin Details

Severity: High

ID: 226570

File Name: unpatched_CVE_2023_45287.nasl

Version: 1.2

Type: local

Agent: unix

Family: Misc.

Published: 3/5/2025

Updated: 8/18/2025

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2023-45287

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:osbuild-composer, cpe:/o:debian:debian_linux:11.0, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:centos:centos:go-toolset, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:centos:centos:ignition, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:debian:debian_linux:golang-1.15, p-cpe:/a:redhat:enterprise_linux:grafana-pcp, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:grafana-pcp, p-cpe:/a:redhat:enterprise_linux:ignition, p-cpe:/a:debian:debian_linux:golang-1.19, p-cpe:/a:redhat:enterprise_linux:go-toolset, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:osbuild-composer, p-cpe:/a:canonical:ubuntu_linux:golang-1.20, p-cpe:/a:redhat:enterprise_linux:grafana, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:centos:centos:grafana

Required KB Items: Host/OS/identifier, Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 12/5/2023

Reference Information

CVE: CVE-2023-45287

Detections

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