redhat-certification: billion laugh attack when getting the status of a host
Published May 26, 2021
7.5
HIGHCVSS 3.1
EPSS 1.10%
Description
redhat-certification 7 does not properly restrict the number of recursive definitions of entities in XML documents, allowing an unauthenticated user to run a "Billion Laugh Attack" by replying to XMLRPC methods when getting the status of an host.
Affected products
- Vendor n/a Product Redhat-Certification Defaultn/a
- Version redhat-certification 7StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Redhat-Certification | n/a |
|
- 7.0
No data.
Red Hat Certification for Red Hat Enterprise Linux 6
redhat-certification
Not affected
Red Hat Certification for Red Hat Enterprise Linux 7
redhat-certification
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Certification for Red Hat Enterprise Linux 6 | redhat-certification | Not affected | n/a |
| Red Hat Certification for Red Hat Enterprise Linux 7 | redhat-certification | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
AV:N/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.10% (0.01104) | 64.54th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.10% (0.01104) | 61.36th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.17% (0.01170) | 76.72th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.20% (0.03203) | 78.21th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.17% (0.01170) | 77.19th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.10% (0.00104) | 44.34th | v3 (v2023.03.01) |
| Feb 9, 2024 | 0.10% (0.00104) | 41.18th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.09% (0.00090) | 36.89th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.65% (0.00651) | 18.22th | v5 (v2026.06.15) |
| May 27, 2021 | 0.65% (0.00651) | 0.00th | v1 |
References (4)
- https://access.redhat.com/security/cve/CVE-2018-10868 x_refsource_MISCVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1593776 x_refsource_MISCIssue TrackingVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-10868
- https://www.cve.org/CVERecord?id=CVE-2018-10868
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2018-10868 | x_refsource_MISCVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1593776 | x_refsource_MISCIssue TrackingVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-10868 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-10868 |
Change history (0)
No recorded changes yet.