SUSE update for dovecot23



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-29157
CVE-2021-33515
CWE-ID CWE-22
CWE-74
Exploitation vector Network
Public exploit N/A
Vulnerable software
SUSE Manager Proxy
Operating systems & Components / Operating system

SUSE Manager Retail Branch Server
Operating systems & Components / Operating system

SUSE Manager Server
Operating systems & Components / Operating system

SUSE Linux Enterprise Server for SAP
Operating systems & Components / Operating system

SUSE Linux Enterprise High Performance Computing
Operating systems & Components / Operating system

SUSE Enterprise Storage
Operating systems & Components / Operating system

SUSE CaaS Platform
Operating systems & Components / Operating system

SUSE Linux Enterprise Server
Operating systems & Components / Operating system

dovecot23-fts-squat-debuginfo
Operating systems & Components / Operating system package or component

dovecot23-fts-squat
Operating systems & Components / Operating system package or component

dovecot23-fts-solr-debuginfo
Operating systems & Components / Operating system package or component

dovecot23-fts-solr
Operating systems & Components / Operating system package or component

dovecot23-fts-lucene-debuginfo
Operating systems & Components / Operating system package or component

dovecot23-fts-lucene
Operating systems & Components / Operating system package or component

dovecot23-fts-debuginfo
Operating systems & Components / Operating system package or component

dovecot23-fts
Operating systems & Components / Operating system package or component

dovecot23-devel
Operating systems & Components / Operating system package or component

dovecot23-debugsource
Operating systems & Components / Operating system package or component

dovecot23-debuginfo
Operating systems & Components / Operating system package or component

dovecot23-backend-sqlite-debuginfo
Operating systems & Components / Operating system package or component

dovecot23-backend-sqlite
Operating systems & Components / Operating system package or component

dovecot23-backend-pgsql-debuginfo
Operating systems & Components / Operating system package or component

dovecot23-backend-pgsql
Operating systems & Components / Operating system package or component

dovecot23-backend-mysql-debuginfo
Operating systems & Components / Operating system package or component

dovecot23-backend-mysql
Operating systems & Components / Operating system package or component

dovecot23
Operating systems & Components / Operating system package or component

Vendor SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Path traversal

EUVDB-ID: #VU54285

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-29157

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a local user to perform directory traversal attacks.

The vulnerability exists due to validation of kid and azp fields in JWT tokens. A local user to ability to control a JWT token location can login as any MTA user and access their emails.

Mitigation

Update the affected package dovecot23 to the latest version.

Vulnerable software versions

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

SUSE Linux Enterprise Server for SAP: 15-SP1

SUSE Linux Enterprise High Performance Computing: 15-SP1-LTSS - 15-SP1-ESPOS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-SP1-BCL - 15-SP1-LTSS

dovecot23-fts-squat-debuginfo: before 2.3.11.3-24.1

dovecot23-fts-squat: before 2.3.11.3-24.1

dovecot23-fts-solr-debuginfo: before 2.3.11.3-24.1

dovecot23-fts-solr: before 2.3.11.3-24.1

dovecot23-fts-lucene-debuginfo: before 2.3.11.3-24.1

dovecot23-fts-lucene: before 2.3.11.3-24.1

dovecot23-fts-debuginfo: before 2.3.11.3-24.1

dovecot23-fts: before 2.3.11.3-24.1

dovecot23-devel: before 2.3.11.3-24.1

dovecot23-debugsource: before 2.3.11.3-24.1

dovecot23-debuginfo: before 2.3.11.3-24.1

dovecot23-backend-sqlite-debuginfo: before 2.3.11.3-24.1

dovecot23-backend-sqlite: before 2.3.11.3-24.1

dovecot23-backend-pgsql-debuginfo: before 2.3.11.3-24.1

dovecot23-backend-pgsql: before 2.3.11.3-24.1

dovecot23-backend-mysql-debuginfo: before 2.3.11.3-24.1

dovecot23-backend-mysql: before 2.3.11.3-24.1

dovecot23: before 2.3.11.3-24.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2021/suse-su-20212124-1/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Code injection

EUVDB-ID: #VU54286

Risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-33515

CWE-ID: CWE-74 - Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists in the way STARTTLS command in processed by the SMTP server. the commands sent during the session before the STARTTLS command are queued and executed later, after the STARTTLS finished with the client. As a result, a remote attacker can perform a MitM attack and gain access to victim's emails.

Mitigation

Update the affected package dovecot23 to the latest version.

Vulnerable software versions

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

SUSE Linux Enterprise Server for SAP: 15-SP1

SUSE Linux Enterprise High Performance Computing: 15-SP1-LTSS - 15-SP1-ESPOS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-SP1-BCL - 15-SP1-LTSS

dovecot23-fts-squat-debuginfo: before 2.3.11.3-24.1

dovecot23-fts-squat: before 2.3.11.3-24.1

dovecot23-fts-solr-debuginfo: before 2.3.11.3-24.1

dovecot23-fts-solr: before 2.3.11.3-24.1

dovecot23-fts-lucene-debuginfo: before 2.3.11.3-24.1

dovecot23-fts-lucene: before 2.3.11.3-24.1

dovecot23-fts-debuginfo: before 2.3.11.3-24.1

dovecot23-fts: before 2.3.11.3-24.1

dovecot23-devel: before 2.3.11.3-24.1

dovecot23-debugsource: before 2.3.11.3-24.1

dovecot23-debuginfo: before 2.3.11.3-24.1

dovecot23-backend-sqlite-debuginfo: before 2.3.11.3-24.1

dovecot23-backend-sqlite: before 2.3.11.3-24.1

dovecot23-backend-pgsql-debuginfo: before 2.3.11.3-24.1

dovecot23-backend-pgsql: before 2.3.11.3-24.1

dovecot23-backend-mysql-debuginfo: before 2.3.11.3-24.1

dovecot23-backend-mysql: before 2.3.11.3-24.1

dovecot23: before 2.3.11.3-24.1

CPE2.3 External links

https://www.suse.com/support/update/announcement/2021/suse-su-20212124-1/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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