Detections
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RHEL 9 : skopeo (RHSA-2024:2239)

high Nessus Plugin ID 194813

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Synopsis

The remote Red Hat host is missing a security update for skopeo.

Description

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:2239 advisory.

 - 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 has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL skopeo package based on the guidance in RHSA-2024:2239.

See Also

https://access.redhat.com/errata/RHSA-2024:2239

https://access.redhat.com/security/cve/CVE-2023-45287

Plugin Details

Severity: High

ID: 194813

File Name: redhat-RHSA-2024-2239.nasl

Version: 1.1

Type: local

Agent: unix

Published: 4/30/2024

Updated: 5/2/2024

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

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/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: cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:skopeo, p-cpe:/a:redhat:enterprise_linux:skopeo-tests

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 4/30/2024

Vulnerability Publication Date: 12/5/2023

Reference Information

CVE: CVE-2023-45287

CWE: 208

RHSA: 2024:2239