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FreeBSD : Privoxy -- Multiple vulnerabilities (memory leak, XSS) (897e1962-5d5a-11ec-a3ed-040e3c3cf7e7)

medium Nessus Plugin ID 156079

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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 multiple vulnerabilities as referenced in the 897e1962-5d5a-11ec-a3ed-040e3c3cf7e7 advisory.

 - An XSS vulnerability was found in Privoxy which was fixed in cgi_error_no_template() by encode the template name when Privoxy is configured to servce the user-manual itself. (CVE-2021-44543)

 - A vulnerability was found in Privoxy which was fixed in get_url_spec_param() by freeing memory of compiled pattern spec before bailing. (CVE-2021-44540)

 - A vulnerability was found in Privoxy which was fixed in process_encrypted_request_headers() by freeing header memory when failing to get the request destination. (CVE-2021-44541)

 - A memory leak vulnerability was found in Privoxy when handling errors. (CVE-2021-44542)

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

http://www.nessus.org/u?75849f2b

http://www.nessus.org/u?06271340

Plugin Details

Severity: Medium

ID: 156079

File Name: freebsd_pkg_897e19625d5a11eca3ed040e3c3cf7e7.nasl

Version: 1.5

Type: local

Published: 12/15/2021

Updated: 11/6/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

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

CVSS Score Source: CVE-2021-44543

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:dropbear, 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: 12/15/2021

Vulnerability Publication Date: 12/15/2021

Reference Information

CVE: CVE-2021-44540, CVE-2021-44541, CVE-2021-44542, CVE-2021-44543