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Fedora 42 : perl-Crypt-CBC (2025-f7bc7b789f)

medium Nessus Plugin ID 243932

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Synopsis

The remote Fedora host is missing one or more security updates.

Description

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-f7bc7b789f advisory.

 This update, to the current upstream release version, includes a fix to source random numbers using the `Crypt::URandom` module rather than trying to read `/dev/urandom` and falling back to Perl's insecure `rand()` function if `/dev/urandom` is not usable (CVE-2025-2814).



Tenable has extracted the preceding description block directly from the Fedora 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

Update the affected perl-Crypt-CBC package.

See Also

https://bodhi.fedoraproject.org/updates/FEDORA-2025-f7bc7b789f

Plugin Details

Severity: Medium

ID: 243932

File Name: fedora_2025-f7bc7b789f.nasl

Version: 1.1

Type: local

Agent: unix

Published: 8/6/2025

Updated: 8/6/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2025-2814

CVSS v3

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.5

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

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

Vulnerability Information

CPE: cpe:/o:fedoraproject:fedora:42, p-cpe:/a:fedoraproject:fedora:perl-crypt-cbc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/28/2025

Vulnerability Publication Date: 4/12/2025

Reference Information

CVE: CVE-2025-2814