CVE-2019-5435 Integer overflow in curl
Low 3.7
Published
Updated
Check this codebase for CVE-2019-5435 and fix it if it is affected.
What it is: CVE-2019-5435 is a low-severity vulnerability in Haxx Curl, published on 28 May 2019. 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-2019-5435 in the wild and no public exploit code.
Affected product: Haxx Curl. 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-2019-5435/ (Markdown: https://insights.sbomify.com/CVE-2019-5435/index.md)
An integer overflow in the curl library's URL API leads to a buffer overflow, potentially allowing remote code execution or denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-5435?
CVE-2019-5435 is a low-severity vulnerability in Haxx Curl, published on 28 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An integer overflow in curl's URL API results in a buffer overflow in libcurl 7.62.0 to and including 7.64.1.
Which versions are affected by CVE-2019-5435?
It affects 1 product.
Products include Haxx Curl.
How do I fix CVE-2019-5435?
Upgrade to a fixed version.
Is CVE-2019-5435 being exploited?
There is no known exploitation of CVE-2019-5435 in the wild and no public exploit code.
Other vulnerabilities in Haxx Curl
Sources
Also known as ALPINE-CVE-2019-5435, CLEANSTART-2026-XK55607, CURL-CVE-2019-5435, DEBIAN-CVE-2019-5435, GHSA-fp2w-w5rc-8fxj.