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Ubuntu 18.04 LTS: USN-7465-1 critical: Mistral service issues

ubuntu
Calendar Grey April 28, 2025
Dist Ubuntu Esm H88
Uncover essential updates for Mistral within Ubuntu LTS versions, targeting vulnerabilities that risk user information leakage and operational interruptions.
Several security issues were fixed in Mistral.

Summary

Several security issues were fixed in Mistral.

Software Description:

- mistral: OpenStack Workflow service - API

- python-mistral-lib: Mistral shared routines and utilities

Details:

It was discovered that Mistral incorrectly handled nested anchors in YAML

files. An attacker could possibly use this issue to cause a denial of

service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-16848)

Pierre Gaxatte discovered that Mistral incorrectly handled erroneous SSH

private key filename commands. An attacker could possibly use this issue to

expose sensitive information. (CVE-2018-16849)

It was discovered that Mistral incorrectly handled the permissions of

sensitive log files. An attacker could possibly use this issue to expose

sensitive information. This issue only affected Ubuntu 18.04 LTS.

(CVE-2019-3866)

Topics%20covered

Topics Covered

security advisory denial of service access control Ubuntu information exposure mistral

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS
   mistral-api                     6.0.0-0ubuntu1.1+esm1
                                   Available with Ubuntu Pro
   python-mistral                  6.0.0-0ubuntu1.1+esm1
                                   Available with Ubuntu Pro
   python-mistral-lib              0.4.0-0ubuntu1+esm1
                                   Available with Ubuntu Pro

Ubuntu 16.04 LTS
   mistral-api                     2.0.0-1ubuntu2+esm1
                                   Available with Ubuntu Pro
   python-mistral                  2.0.0-1ubuntu2+esm1
                                   Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

  https://ubuntu.com/security/notices/USN-7465-1

  CVE-2018-16848, CVE-2018-16849, CVE-2019-3866

Severity
critical
Lowest
Low
Medium
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Critical

Ubuntu Security Notice USN-7465-1

Topics%20covered

Topics Covered

security advisory denial of service access control Ubuntu information exposure mistral

Package Information

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