PT-2020-8565 · Openstack+1 · Openstack-Mistral+1

James Hebden · Published 2020-06-15 · Updated 2025-04-28 · CVE-2018-16848

Positive Technologies (AI Summary)

CVSS v4.0

7.1

High

Base vector

AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Name of the Vulnerable Software and Affected Versions: OpenStack Mistral versions up to and including 7.0.3

Description: A Denial of Service (DoS) condition is possible due to submitting a specially crafted workflow definition YAML file containing nested anchors, which can lead to resource exhaustion.

Recommendations: For OpenStack Mistral versions up to and including 7.0.3, consider restricting the submission of workflow definition YAML files or validating the files to prevent those with nested anchors until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2018-16848

GHSA-443J-6P7G-6V4W

PYSEC-2020-240

USN-7465-1

Affected Products

Openstack-Mistral

Ubuntu

References · 19

• https://cve.org/CVERecord?id=CVE-2018-16848 · Security Note
• https://osv.dev/vulnerability/USN-7465-1 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-443j-6p7g-6v4w · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7465-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2018-16848 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2018-16848 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-16848 · Vendor Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=1645332 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-16848 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-16849 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-16848 · Security Note
• https://osv.dev/vulnerability/CVE-2018-16848 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-3866 · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2020-240 · Vendor Advisory
• https://github.com/openstack/mistral · Note