CVE-2018-6197 Null dereference in n/a
High 7.5
Published
Updated
Check this codebase for CVE-2018-6197 and fix it if it is affected.
What it is: CVE-2018-6197 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 25 Jan 2018. 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-2018-6197 in the wild and no public exploit code.
Affected product: Canonical Ubuntu 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-2018-6197/ (Markdown: https://insights.sbomify.com/CVE-2018-6197/index.md)
A NULL pointer dereference in w3m allows attackers to cause a denial of service via crafted form data.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-6197?
CVE-2018-6197 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 25 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
w3m through 0.5.3 is prone to a NULL pointer dereference flaw in formUpdateBuffer in form.c.
Weakness: CWE-476
Which versions are affected by CVE-2018-6197?
It affects 2 products.
Products include Canonical Ubuntu Linux, Tats W3m.
How do I fix CVE-2018-6197?
Upgrade to a fixed version.
Is CVE-2018-6197 being exploited?
There is no known exploitation of CVE-2018-6197 in the wild and no public exploit code.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2018-6197, DEBIAN-CVE-2018-6197, GHSA-w7fh-6798-hqc2, UBUNTU-CVE-2018-6197.