CVE-1999-0240 Security feature bypass in n/a
High 7.5
Published
Updated
Check this codebase for CVE-1999-0240 and fix it if it is affected.
What it is: CVE-1999-0240 is a high-severity vulnerability in n/a, 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-1999-0240 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-1999-0240/ (Markdown: https://insights.sbomify.com/CVE-1999-0240/index.md)
Firewalls or filters may incorrectly allow fragmented SYN packets with reserved IP bits, bypassing security policies.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-1999-0240?
CVE-1999-0240 is a high-severity vulnerability in n/a, published on 4 Feb 2000. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Some filters or firewalls allow fragmented SYN packets with IP reserved bits in violation of their implemented policy.
Which versions are affected by CVE-1999-0240?
How do I fix CVE-1999-0240?
No fix has been published for CVE-1999-0240 yet. Limit exposure of the affected software until one is available.
Is CVE-1999-0240 being exploited?
There is no known exploitation of CVE-1999-0240 in the wild and no public exploit code.
Sources
Also known as GHSA-9w2q-p353-cvp5.