CVE-2018-6343 Proxygen fails to validate that a secondary auth manager is set before dereferencing it.
High 7.5
Published
Updated
Check this codebase for CVE-2018-6343 and fix it if it is affected.
What it is: CVE-2018-6343 is a high-severity vulnerability in Facebook Proxygen, published on 31 Dec 2018.
Exploitation: There is no known exploitation of CVE-2018-6343 in the wild and no public exploit code.
Affected product: Facebook Proxygen. 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-2018-6343/ (Markdown: https://insights.sbomify.com/CVE-2018-6343/index.md)
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2018-6343?
CVE-2018-6343 is a high-severity vulnerability in Facebook Proxygen, published on 31 Dec 2018.
Official description
Proxygen fails to validate that a secondary auth manager is set before dereferencing it. That can cause a denial of service issue when parsing a Certificate/CertificateRequest HTTP2 Frame over a fizz (TLS 1.3) transport. This issue affects Proxygen releases starting from v2018.10.29.00 until the fix in v2018.11.19.00.
Which versions are affected by CVE-2018-6343?
It affects 1 product.
Products include Facebook Proxygen.
How do I fix CVE-2018-6343?
No fix has been published for CVE-2018-6343 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-6343 being exploited?
There is no known exploitation of CVE-2018-6343 in the wild and no public exploit code.
Other vulnerabilities in Facebook Proxygen
Sources
Also known as GHSA-php7-7869-j4qf.