openwsman: Infinite loop in process_connection() allows denial of service
Published Mar 14, 2019
7.5
HIGHCVSS 3.1
EPSS 15.24%
Description
Openwsman, versions up to and including 2.6.9, are vulnerable to infinite loop in process_connection() when parsing specially crafted HTTP requests. A remote, unauthenticated attacker can exploit this vulnerability by sending malicious HTTP request to cause denial of service to openwsman server.
Affected products
- Vendor n/a Product Openwsman Defaultn/a
- Version versions up to and including 2.6.9StatusaffectedConstraints-
- 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 | Openwsman | n/a |
|
Configuration 1
- ≤ 2.6.9
Configuration 2
- 28
- 29
- 30
No data.
Red Hat Enterprise Linux 7
openwsman-0:2.6.3-7.git4391e5c.el7
Fixed · RHSA-2020:3940
Red Hat Enterprise Linux 8
openwsman-0:2.6.5-7.el8
Fixed · RHSA-2020:4689
Red Hat Enterprise Linux 6
openwsman
Will not fix
Red Hat OpenStack Platform 8 (Liberty) Director
openwsman
Will not fix
Red Hat OpenStack Platform 9 (Mitaka) Director
openwsman
Will not fix
Red Hat Virtualization 4
redhat-virtualization-host
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | openwsman-0:2.6.3-7.git4391e5c.el7 | Fixed | RHSA-2020:3940 |
| Red Hat Enterprise Linux 8 | openwsman-0:2.6.5-7.el8 | Fixed | RHSA-2020:4689 |
| Red Hat Enterprise Linux 6 | openwsman | Will not fix | n/a |
| Red Hat OpenStack Platform 8 (Liberty) Director | openwsman | Will not fix | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) Director | openwsman | Will not fix | n/a |
| Red Hat Virtualization 4 | redhat-virtualization-host | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat OpenStack Platform currently only utilizes the client and python client API bindings, not the server components of openwsman. Additionally, updates for this package are received through the Red Hat Enterprise Linux repository. Red Hat Enterprise Virtualization uses only the openwsman-python client API bindings, not the server components of openwsman. This issue affects the versions of openwsman as shipped with Red Hat Enterprise Linux 6 and 7. Red Hat Enterprise Linux 6 is now in Maintenance Support 2 Phase of the support and maintenance life cycle. This has been rated as having a security impact of Moderate, and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (24 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 15.24% (0.15243) | 96.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 15.24% (0.15243) | 96.33th | v5 (v2026.06.15) |
| Apr 19, 2026 | 0.69% (0.00695) | 71.94th | v4 (v2025.03.14) |
| Mar 22, 2026 | 2.98% (0.02982) | 86.40th | v4 (v2025.03.14) |
| Jan 30, 2026 | 0.72% (0.00720) | 72.00th | v4 (v2025.03.14) |
| Dec 7, 2025 | 3.04% (0.03038) | 86.20th | v4 (v2025.03.14) |
| Nov 21, 2025 | 4.07% (0.04069) | 88.05th | v4 (v2025.03.14) |
| Nov 18, 2025 | 11.64% (0.11644) | 92.96th | v4 (v2025.03.14) |
| May 20, 2025 | 4.07% (0.04069) | 87.96th | v4 (v2025.03.14) |
| May 13, 2025 | 0.99% (0.00987) | 75.64th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.02% (0.02017) | 82.55th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.37% (0.00374) | 73.59th | v3 (v2023.03.01) |
| Mar 7, 2024 | 0.37% (0.00374) | 72.13th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.39% (0.00393) | 72.69th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.39% (0.00393) | 69.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.41% (0.01408) | 72.89th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.41% (0.01408) | 72.37th | v2 (v2022.01.01) |
| Feb 3, 2023 | 2.17% (0.02172) | 80.18th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.41% (0.01408) | 70.87th | v2 (v2022.01.01) |
| Feb 4, 2022 | 27.21% (0.27206) | 95.84th | v2 (v2022.01.01) |
| Feb 3, 2022 | 11.80% (0.11799) | 88.50th | v1 |
| Jan 6, 2022 | 11.80% (0.11799) | 88.36th | v1 |
| Sep 1, 2021 | 2.90% (0.02895) | 80.80th | v1 |
| Apr 14, 2021 | 2.90% (0.02895) | 0.00th | v1 |
References (12)
- http://bugzilla.suse.com/show_bug.cgi?id=1122623 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00006.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00065.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/107367 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2019-3833 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1674478 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3833 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2V5HJ355RSKMFQ7GRJAHRZNDVXASF7TA/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B2HEZ7D7GF3HDF36JLGYXIK5URR66DS4/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CXQP7UDPRZIZ4LM7FEJCTC2EDUYVOR2J/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2019-3833
- https://www.cve.org/CVERecord?id=CVE-2019-3833
Change history (0)
No recorded changes yet.