Vulnerability-Lookup

OPENSUSE-SU-2019:0233-1

Vulnerability from csaf_opensuse - Published: 2019-03-23 11:06 - Updated: 2026-09-20 18:47

Summary

Security update for mosquitto

Severity

Low

Notes

Title of the patch: Security update for mosquitto

Description of the patch: This update for mosquitto fixes the following issues: Security issues fixed: - CVE-2018-12546: Fixed an issue with revoked access to topics (bsc#1125019). - CVE-2018-12551: Fixed an issue which allowed malformed data in the password file to be treated as valid (bsc#1125020). - CVE-2018-12550: Fixed an an issue which treats an empty ACL file wrongly (bsc#1125021).

Patchnames: openSUSE-2019-233

CVE-2018-12546

6.5 (Medium)


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

Affected products

Recommended 5 products

Product	Version	Remediation
Unresolved product id: openSUSE Leap 15.0:libmosquitto1-0:1.4.15-lp150.2.3.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.0:libmosquittopp1-0:1.4.15-lp150.2.3.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.0:mosquitto-0:1.4.15-lp150.2.3.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.0:mosquitto-clients-0:1.4.15-lp150.2.3.1.x86_64	—	Vendor Fix
Unresolved product id: openSUSE Leap 15.0:mosquitto-devel-0:1.4.15-lp150.2.3.1.x86_64	—	Vendor Fix

Threats

Impact moderate

CVE-2018-12550

8.1 (High)


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

Affected products

Recommended 5 products, the same list as for CVE-2018-12546

Threats

Impact moderate

CVE-2018-12551

8.1 (High)


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

Affected products

Recommended 5 products, the same list as for CVE-2018-12546

Threats

Impact important

References

16 references

URL	Category
https://www.suse.com/support/security/rating/	external
https://ftp.suse.com/pub/projects/security/csaf/o…	self
https://lists.opensuse.org/archives/list/security…	self
https://lists.opensuse.org/archives/list/security…	self
https://bugzilla.suse.com/1125019	self
https://bugzilla.suse.com/1125020	self
https://bugzilla.suse.com/1125021	self
https://www.suse.com/security/cve/CVE-2018-12546/	self
https://www.suse.com/security/cve/CVE-2018-12550/	self
https://www.suse.com/security/cve/CVE-2018-12551/	self
https://www.suse.com/security/cve/CVE-2018-12546	external
https://bugzilla.suse.com/1125019	external
https://www.suse.com/security/cve/CVE-2018-12550	external
https://bugzilla.suse.com/1125021	external
https://www.suse.com/security/cve/CVE-2018-12551	external
https://bugzilla.suse.com/1125020	external

JSON

To clipboard

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          "date": "2019-03-23T11:06:23Z",
          "details": "important"
        }
      ],
      "title": "CVE-2018-12551"
    }
  ]
}

CVE-2018-12546 (GCVE-0-2018-12546)

Vulnerability from cvelistv5 – Published: 2019-03-27 17:26 – Updated: 2024-08-05 08:38

Summary

In Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) when a client publishes a retained message to a topic, then has its access to that topic revoked, the retained message will still be published to clients that subscribe to that topic in the future. In some applications this may result in clients being able cause effects that would otherwise not be allowed.

Severity

No CVSS data available.

CWE

CWE-284 - Improper Access Control

Assigner

eclipse CNA under the mitre root

CNA scorecard C 66/100 over 204 records in the last 180 days details

References

1 reference

URL	Tags
https://bugs.eclipse.org/bugs/show_bug.cgi?id=543127	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
The Eclipse Foundation	Eclipse Mosquitto	Affected: 1.0 , < unspecified (custom) Affected: unspecified , ≤ 1.5.5 (custom)

Show details on NVD website

JSON

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CVE-2018-12550 (GCVE-0-2018-12550)

Vulnerability from cvelistv5 – Published: 2019-03-27 17:26 – Updated: 2024-08-05 08:38

Summary

When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, then Mosquitto will treat this as though no ACL file has been defined and use a default allow policy. The new behaviour is to have an empty ACL file mean that all access is denied, which is not a useful configuration but is not unexpected.

Severity

No CVSS data available.

CWE

CWE-440 - Expected Behavior Violation

Assigner

eclipse CNA under the mitre root

CNA scorecard C 66/100 over 204 records in the last 180 days details

References

2 references

URL	Tags
https://bugs.eclipse.org/bugs/show_bug.cgi?id=541870	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
The Eclipse Foundation	Eclipse Mosquitto	Affected: 1.0 , < unspecified (custom) Affected: unspecified , ≤ 1.5.5 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2018-12551 (GCVE-0-2018-12551)

Vulnerability from cvelistv5 – Published: 2019-03-27 17:26 – Updated: 2024-08-05 08:38

Summary

When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use a password file for authentication, any malformed data in the password file will be treated as valid. This typically means that the malformed data becomes a username and no password. If this occurs, clients can circumvent authentication and get access to the broker by using the malformed username. In particular, a blank line will be treated as a valid empty username. Other security measures are unaffected. Users who have only used the mosquitto_passwd utility to create and modify their password files are unaffected by this vulnerability.

Severity

No CVSS data available.

CWE

CWE-703 - Improper Check or Handling of Exceptional Conditions

Assigner

eclipse CNA under the mitre root

CNA scorecard C 66/100 over 204 records in the last 180 days details

References

2 references

URL	Tags
https://bugs.eclipse.org/bugs/show_bug.cgi?id=543401	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2019…	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
The Eclipse Foundation	Eclipse Mosquitto	Affected: 1.0 , < unspecified (custom) Affected: unspecified , ≤ 1.5.5 (custom)

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OPENSUSE-SU-2019:0233-1

CVE-2018-12546 (GCVE-0-2018-12546)

CVE-2018-12550 (GCVE-0-2018-12550)

CVE-2018-12551 (GCVE-0-2018-12551)

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour