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Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS : Cyrus IMAP Server vulnerabilities (USN-7224-1)

critical Nessus Plugin ID 214517

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7224-1 advisory.

 It was discovered that non-authentication-related HTTP requests could be interpreted in an authentication context by a Cyrus IMAP Server when multiple requests arrived over the same connection. An unauthenticated attacker could possibly use this issue to perform a privilege escalation attack. This issue only affected Ubuntu 18.04 LTS. (CVE-2019-18928)

 Matthew Horsfall discovered that Cyrus IMAP Server utilized a poor string hashing algorithm that could be abused to control where data was being stored. An attacker could possibly use this issue to perform a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2021-33582)

 Damian Poddebniak discovered that Cyrus IMAP Server could interpret specially crafted commands to exploit a memory issue. An authenticated attacker could possibly use this issue to perform a denial of service.
 This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2024-34055)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

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

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-7224-1

Plugin Details

Severity: Critical

ID: 214517

File Name: ubuntu_USN-7224-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 1/23/2025

Updated: 1/23/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2019-18928

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:cyrus-admin, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:cyrus-clients, p-cpe:/a:canonical:ubuntu_linux:cyrus-caldav, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:cyrus-imapd, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:cyrus-replication, p-cpe:/a:canonical:ubuntu_linux:cyrus-murder, p-cpe:/a:canonical:ubuntu_linux:cyrus-dev, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:cyrus-common, p-cpe:/a:canonical:ubuntu_linux:cyrus-pop3d, p-cpe:/a:canonical:ubuntu_linux:cyrus-nntpd, p-cpe:/a:canonical:ubuntu_linux:libcyrus-imap-perl

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

Exploit Ease: No known exploits are available

Patch Publication Date: 1/22/2025

Vulnerability Publication Date: 11/15/2019

Reference Information

CVE: CVE-2019-18928, CVE-2021-33582, CVE-2024-34055

USN: 7224-1