CVE-2021-43243 VP9 Video Extensions Information Disclosure Vulnerability
Medium 5.5
Published
Updated
Check this codebase for CVE-2021-43243 and fix it if it is affected.
What it is: CVE-2021-43243 is a medium-severity vulnerability in Microsoft VP9 Video Extensions, published on 15 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-43243 in the wild and no public exploit code.
Affected product: Microsoft VP9 Video Extensions. 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-2021-43243/ (Markdown: https://insights.sbomify.com/CVE-2021-43243/index.md)
An information disclosure vulnerability in VP9 Video Extensions allows attackers to read sensitive memory data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-43243?
CVE-2021-43243 is a medium-severity vulnerability in Microsoft VP9 Video Extensions, published on 15 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
VP9 Video Extensions Information Disclosure Vulnerability
Which versions are affected by CVE-2021-43243?
It affects 1 product.
Products include Microsoft Vp9 Video Extensions.
How do I fix CVE-2021-43243?
No fix has been published for CVE-2021-43243 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-43243 being exploited?
There is no known exploitation of CVE-2021-43243 in the wild and no public exploit code.
Other vulnerabilities in Microsoft VP9 Video Extensions
- CVE-2022-24451 VP9 Video Extensions Remote Code Execution Vulnerability
- CVE-2022-24501 VP9 Video Extensions Remote Code Execution Vulnerability
- CVE-2022-22709 VP9 Video Extensions Remote Code Execution Vulnerability
- CVE-2021-31967 VP9 Video Extensions Remote Code Execution Vulnerability
- CVE-2021-28464 VP9 Video Extensions Remote Code Execution Vulnerability
Sources
Also known as GHSA-vxh6-3w55-j34c.