CVE-2021-32919

Upstream information

CVE-2021-32919 at MITRE

Description

An issue was discovered in Prosody before 0.11.9. The undocumented dialback_without_dialback option in mod_dialback enables an experimental feature for server-to-server authentication. It does not correctly authenticate remote server certificates, allowing a remote server to impersonate another server (when this option is enabled).

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SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores

CVSS detail	National Vulnerability Database
Base Score	4.3
Vector	AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector	Network
Access Complexity	Medium
Authentication	None
Confidentiality Impact	Partial
Integrity Impact	None
Availability Impact	None

CVSS v3 Scores

CVSS detail	National Vulnerability Database
Base Score	7.5
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality Impact	High
Integrity Impact	None
Availability Impact	None
CVSSv3 Version	3.1

SUSE Bugzilla entry: 1186027 [RESOLVED / FIXED]

SUSE Security Advisories:

• openSUSE-SU-2021:0728-1, published Sat May 15 03:38:33 2021
• openSUSE-SU-2021:0751-1, published Tue May 18 09:38:38 2021

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Package Hub 15 SP2	prosody >= 0.11.9-bp152.2.3.1	Patchnames: openSUSE-2021-751
SUSE Package Hub 15 SP3	prosody >= 0.11.9-bp153.2.3.1	Patchnames: openSUSE-2021-991
openSUSE Leap 15.2	prosody >= 0.11.9-lp152.2.3.1	Patchnames: openSUSE-2021-728
openSUSE Leap 15.3	prosody >= 0.11.9-bp153.2.3.1	Patchnames: openSUSE-2021-991
openSUSE Tumbleweed	prosody >= 0.11.10-1.2	Patchnames: openSUSE-Tumbleweed-2024-11197

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SUSE Timeline for this CVE

CVE page created: Thu May 13 17:02:12 2021
CVE page last modified: Sat Nov 1 22:33:43 2025