CVE-1999-0656 Information disclosure in n/a
Medium 5.0
Published
Updated
Check this codebase for CVE-1999-0656 and fix it if it is affected.
What it is: CVE-1999-0656 is a medium-severity vulnerability in Linux kernel, published on 4 Feb 2000. 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-1999-0656 in the wild and no public exploit code.
Affected product: Linux kernel. 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-1999-0656/ (Markdown: https://insights.sbomify.com/CVE-1999-0656/index.md)
Remote attackers can enumerate valid usernames via the ugidd RPC interface, exposing user account information on Azure Linux systems.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-1999-0656?
CVE-1999-0656 is a medium-severity vulnerability in Linux kernel, published on 4 Feb 2000. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The ugidd RPC interface, by design, allows remote attackers to enumerate valid usernames by specifying arbitrary UIDs that ugidd maps to local user and group names.
Weakness: CWE-16
Which versions are affected by CVE-1999-0656?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-1999-0656?
No fix published yet.
Is CVE-1999-0656 being exploited?
There is no known exploitation of CVE-1999-0656 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-34842, AZL-6511, GHSA-75cj-jpmc-wm6c.