Vulnerability Details : CVE-2018-16848
A Denial of Service (DoS) condition is possible in OpenStack Mistral in versions up to and including 7.0.3. Submitting a specially crafted workflow definition YAML file containing nested anchors can lead to resource exhaustion culminating in a denial of service.
Vulnerability category: Denial of service
Products affected by CVE-2018-16848
- cpe:2.3:a:redhat:openstack-mistral:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-16848
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 28 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-16848
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:N/A:P |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2018-16848
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-16848
-
https://bugzilla.redhat.com/show_bug.cgi?id=1645332
1645332 – (CVE-2018-16848) CVE-2018-16848 openstack-mistral: Potential Mistral Denial of Service handling recursive YAML anchor expansionIssue Tracking;Vendor Advisory
-
https://bugs.launchpad.net/mistral/+bug/1785657
Bug #1785657 “Denial of service through YAML anchors expansion (...” : Bugs : MistralThird Party Advisory
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