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Debian DSA-5047-1 : prosody - security update

high Nessus Plugin ID 156768

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Synopsis

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

Description

The remote Debian 10 / 11 host has a package installed that is affected by a vulnerability as referenced in the dsa-5047 advisory.

 - It was discovered that an internal Prosody library to load XML based on libexpat does not properly restrict the XML features allowed in parsed XML data. Given suitable attacker input, this results in expansion of recursive entity references from DTDs (CWE-776). In addition, depending on the libexpat version used, it may also allow injections using XML External Entity References (CWE-611). (CVE-2022-0217)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the prosody packages.

For the stable distribution (bullseye), this problem has been fixed in version 0.11.9-2+deb11u1.

See Also

https://security-tracker.debian.org/tracker/source-package/prosody

https://www.debian.org/security/2022/dsa-5047

https://security-tracker.debian.org/tracker/CVE-2022-0217

https://packages.debian.org/source/buster/prosody

https://packages.debian.org/source/bullseye/prosody

Plugin Details

Severity: High

ID: 156768

File Name: debian_DSA-5047.nasl

Version: 1.6

Type: local

Agent: unix

Published: 1/16/2022

Updated: 11/20/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

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

CVSS Score Source: CVE-2022-0217

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:prosody, cpe:/o:debian:debian_linux:10.0, cpe:/o:debian:debian_linux:11.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/15/2022

Vulnerability Publication Date: 1/14/2022

Reference Information

CVE: CVE-2022-0217