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FreeBSD : py-cryptography -- includes a vulnerable copy of OpenSSL (c1a8ed1c-2814-4260-82aa-9e37c83aac93)

high Nessus Plugin ID 174316

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the c1a8ed1c-2814-4260-82aa-9e37c83aac93 advisory.

 - There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName.
 X.400 addresses were parsed as an ASN1_STRING but the public structure definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect applications which have implemented their own functionality for retrieving CRLs over a network. (CVE-2023-0286)

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 packages.

See Also

https://osv.dev/vulnerability/GHSA-x4qr-2fvf-3mr5

http://www.nessus.org/u?2a1f49d3

Plugin Details

Severity: High

ID: 174316

File Name: freebsd_pkg_c1a8ed1c2814426082aa9e37c83aac93.nasl

Version: 1.0

Type: local

Published: 4/14/2023

Updated: 4/14/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2023-0286

CVSS v3

Risk Factor: High

Base Score: 7.4

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:py310-cryptography, p-cpe:/a:freebsd:freebsd:py311-cryptography, p-cpe:/a:freebsd:freebsd:py37-cryptography, p-cpe:/a:freebsd:freebsd:py38-cryptography, p-cpe:/a:freebsd:freebsd:py39-cryptography, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 4/10/2023

Vulnerability Publication Date: 12/15/2022

Reference Information

CVE: CVE-2023-0286