CVE-2021-32921 An issue was discovered in Prosody before 0.11.9.
Medium 5.9
Published
Updated
Check this codebase for CVE-2021-32921 and fix it if it is affected.
What it is: CVE-2021-32921 is a medium-severity vulnerability in Debian Debian Linux, published on 13 May 2021.
Exploitation: There is no known exploitation of CVE-2021-32921 in the wild and no public exploit code.
Affected product: Debian Debian Linux. 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-2021-32921/ (Markdown: https://insights.sbomify.com/CVE-2021-32921/index.md)
- Exploited in the wild
- Not known
- Fix
- Available
What is CVE-2021-32921?
CVE-2021-32921 is a medium-severity vulnerability in Debian Debian Linux, published on 13 May 2021.
Official description
An issue was discovered in Prosody before 0.11.9. It does not use a constant-time algorithm for comparing certain secret strings when running under Lua 5.2 or later. This can potentially be used in a timing attack to reveal the contents of secret strings to an attacker.
Weakness: CWE-362
Which versions are affected by CVE-2021-32921?
It affects 3 products.
Products include Debian Debian Linux, Fedoraproject Fedora, Prosody Prosody.
How do I fix CVE-2021-32921?
Upgrade to a fixed version.
Is CVE-2021-32921 being exploited?
There is no known exploitation of CVE-2021-32921 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2021-32921, GHSA-vh63-h6gp-hw6w, UBUNTU-CVE-2021-32921.