FreeBSD : cURL -- Multiple vulnerabilities (c9221ec9-17a2-11ec-b335-d4c9ef517024)

critical Nessus Plugin ID 153812


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


The cURL project reports :

- UAF and double-free in MQTT sending (CVE-2021-22945)

- Protocol downgrade required TLS bypassed (CVE-2021-22946)

- STARTTLS protocol injection via MITM (CVE-2021-22945)


Update the affected package.

See Also

Plugin Details

Severity: Critical

ID: 153812

File Name: freebsd_pkg_c9221ec917a211ecb335d4c9ef517024.nasl

Version: 1.3

Type: local

Published: 10/1/2021

Updated: 10/12/2021

Dependencies: ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2021-22945


Risk Factor: Medium

Score: 6.1


Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

Temporal Vector: E:U/RL:OF/RC:C


Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:curl, 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: 9/17/2021

Vulnerability Publication Date: 9/15/2021

Reference Information

CVE: CVE-2021-22945, CVE-2021-22946, CVE-2021-22947