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FreeBSD : libidn2 -- roundtrip check vulnerability (f04f840d-0840-11ea-8d66-75d3253ef913)

high Nessus Plugin ID 131149

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Synopsis

The remote FreeBSD host is missing a security-related update.

Description

CVE list :

GNU libidn2 before 2.2.0 fails to perform the roundtrip checks specified in RFC3490 Section 4.2 when converting A-labels to U-labels.
This makes it possible in some circumstances for one domain to impersonate another. By creating a malicious domain that matches a target domain except for the inclusion of certain punycoded Unicode characters (that would be discarded when converted first to a Unicode label and then back to an ASCII label), arbitrary domains can be impersonated.

Solution

Update the affected package.

See Also

https://gitlab.com/libidn/libidn2/blob/master/NEWS

http://www.nessus.org/u?3502645f

Plugin Details

Severity: High

ID: 131149

File Name: freebsd_pkg_f04f840d084011ea8d6675d3253ef913.nasl

Version: 1.5

Type: local

Published: 11/20/2019

Updated: 4/11/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-12290

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:N/I:H/A:N

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:libidn2, 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: 11/18/2019

Vulnerability Publication Date: 11/14/2019

Reference Information

CVE: CVE-2019-12290