CVE-2018-0956 A denial of service vulnerability exists in the HTTP 2.0 protocol stack (HTTP.sys) when HTTP.sys improperly parses specially crafted HTTP 2.
High 7.5
Published
Updated
Check this codebase for CVE-2018-0956 and fix it if it is affected.
What it is: CVE-2018-0956 is a high-severity vulnerability in Microsoft Windows 10, published on 12 Apr 2018.
Exploitation: There is no known exploitation of CVE-2018-0956 in the wild and no public exploit code.
Affected product: Microsoft Windows 10. 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-2018-0956/ (Markdown: https://insights.sbomify.com/CVE-2018-0956/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2018-0956?
CVE-2018-0956 is a high-severity vulnerability in Microsoft Windows 10, published on 12 Apr 2018.
Official description
A denial of service vulnerability exists in the HTTP 2.0 protocol stack (HTTP.sys) when HTTP.sys improperly parses specially crafted HTTP 2.0 requests, aka "HTTP.sys Denial of Service Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.
Which versions are affected by CVE-2018-0956?
It affects 2 products.
Products include Microsoft Windows 10, Microsoft Windows Server 2016.
How do I fix CVE-2018-0956?
No fix has been published for CVE-2018-0956 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-0956 being exploited?
There is no known exploitation of CVE-2018-0956 in the wild and no public exploit code.
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- CVE-2020-1467 Windows Hard Link Elevation of Privilege Vulnerability
- CVE-2021-26424 Windows TCP/IP Remote Code Execution Vulnerability
- CVE-2021-28476 Windows Hyper-V Remote Code Execution Vulnerability
Sources
Also known as GHSA-g2h3-89xx-5947.