CVE-2019-3833 Denial of service in openwsman
High 7.5
Published
Updated
Check this codebase for CVE-2019-3833 and fix it if it is affected.
What it is: CVE-2019-3833 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 14 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-3833 in the wild and no public exploit code.
Affected product: Fedoraproject Fedora. No package-level version data is available, so check the vendor advisory linked from the reference page.
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/CVE-2019-3833/ (Markdown: https://insights.sbomify.com/CVE-2019-3833/index.md)
Remote unauthenticated attackers can cause denial of service in OpenWSMan servers by sending specially crafted HTTP requests that trigger an infinite loop.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-3833?
CVE-2019-3833 is a high-severity denial of service vulnerability in Fedoraproject Fedora, published on 14 Mar 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-835
Which versions are affected by CVE-2019-3833?
It affects 3 products.
Linux distribution packages (40)
libwsman-devel AlmaLinux:8 | All versions | 2.6.5-7.el8 |
libwsman1 AlmaLinux:8 | All versions | 2.6.5-7.el8 |
openwsman-client AlmaLinux:8 | All versions | 2.6.5-7.el8 |
openwsman-python3 AlmaLinux:8 | All versions | 2.6.5-7.el8 |
openwsman-server AlmaLinux:8 | All versions | 2.6.5-7.el8 |
libwsman-devel Red Hat:enterprise_linux:7::client | All versions | 0:2.6.3-7.git4391e5c.el7 |
libwsman1 Red Hat:enterprise_linux:7::client | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman Red Hat:enterprise_linux:7::client | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-client Red Hat:enterprise_linux:7::client | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-debuginfo Red Hat:enterprise_linux:7::client | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-perl Red Hat:enterprise_linux:7::client | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-python Red Hat:enterprise_linux:7::client | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-ruby Red Hat:enterprise_linux:7::client | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-server Red Hat:enterprise_linux:7::client | All versions | 0:2.6.3-7.git4391e5c.el7 |
libwsman-devel Red Hat:enterprise_linux:7::computenode | All versions | 0:2.6.3-7.git4391e5c.el7 |
libwsman1 Red Hat:enterprise_linux:7::computenode | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman Red Hat:enterprise_linux:7::computenode | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-client Red Hat:enterprise_linux:7::computenode | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-debuginfo Red Hat:enterprise_linux:7::computenode | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-perl Red Hat:enterprise_linux:7::computenode | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-python Red Hat:enterprise_linux:7::computenode | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-ruby Red Hat:enterprise_linux:7::computenode | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-server Red Hat:enterprise_linux:7::computenode | All versions | 0:2.6.3-7.git4391e5c.el7 |
libwsman-devel Red Hat:enterprise_linux:7::server | All versions | 0:2.6.3-7.git4391e5c.el7 |
libwsman1 Red Hat:enterprise_linux:7::server | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman Red Hat:enterprise_linux:7::server | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-client Red Hat:enterprise_linux:7::server | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-debuginfo Red Hat:enterprise_linux:7::server | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-perl Red Hat:enterprise_linux:7::server | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-python Red Hat:enterprise_linux:7::server | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-ruby Red Hat:enterprise_linux:7::server | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-server Red Hat:enterprise_linux:7::server | All versions | 0:2.6.3-7.git4391e5c.el7 |
libwsman-devel Red Hat:enterprise_linux:7::workstation | All versions | 0:2.6.3-7.git4391e5c.el7 |
libwsman1 Red Hat:enterprise_linux:7::workstation | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman Red Hat:enterprise_linux:7::workstation | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-client Red Hat:enterprise_linux:7::workstation | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-debuginfo Red Hat:enterprise_linux:7::workstation | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-perl Red Hat:enterprise_linux:7::workstation | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-python Red Hat:enterprise_linux:7::workstation | All versions | 0:2.6.3-7.git4391e5c.el7 |
openwsman-ruby Red Hat:enterprise_linux:7::workstation | All versions | 0:2.6.3-7.git4391e5c.el7 |
Products include Fedoraproject Fedora, Opensuse Leap, Openwsman Project Openwsman.
How do I fix CVE-2019-3833?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-3833 being exploited?
There is no known exploitation of CVE-2019-3833 in the wild and no public exploit code.
Other vulnerabilities in Fedoraproject Fedora
Sources
Also known as ALSA-2020:4689, AZL-36970, AZL-37152, GHSA-6gg2-jx5v-58c2, RHSA-2020:3940, RHSA-2020:4689 and 2 more.