CVE-2021-46853 Race condition in n/a
Medium 5.9
Published
Updated
Check this codebase for CVE-2021-46853 and fix it if it is affected.
What it is: CVE-2021-46853 is a medium-severity vulnerability in n/a, published on 3 Nov 2022. 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-2021-46853 in the wild and no public exploit code.
Affected product: n/a. 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-2021-46853/ (Markdown: https://insights.sbomify.com/CVE-2021-46853/index.md)
Remote attackers can crash the application by sending LIST or LSUB commands before STARTTLS, affecting users of the Alpine IMAP client library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-46853?
CVE-2021-46853 is a medium-severity vulnerability in n/a, published on 3 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Alpine before 2.25 allows remote attackers to cause a denial of service (application crash) when LIST or LSUB is sent before STARTTLS.
Weakness: CWE-367
Which versions are affected by CVE-2021-46853?
It affects 1 product.
Products include Alpine Project Alpine.
How do I fix CVE-2021-46853?
Upgrade to a fixed version.
Is CVE-2021-46853 being exploited?
There is no known exploitation of CVE-2021-46853 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2021-46853, GHSA-v9q2-jxcm-rm4c, UBUNTU-CVE-2021-46853.