# CVE-2017-5337: Memory corruption in n/a

> Remote attackers can trigger heap-based buffer overflows in GnuTLS via crafted OpenPGP certificates, potentially leading to code execution or denial of service.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 24 Mar 2017
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2017-5337, GHSA-c5c3-3h6m-3ghx, UBUNTU-CVE-2017-5337

## What is CVE-2017-5337?

CVE-2017-5337 is a critical memory corruption vulnerability in Gnu Gnutls, published on 24 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Multiple heap-based buffer overflows in the read_attribute function in GnuTLS before 3.3.26 and 3.5.x before 3.5.8 allow remote attackers to have unspecified impact via a crafted OpenPGP certificate.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2017-5337?

It affects 2 products.


Products: Gnu Gnutls, Opensuse Leap.

## How do I fix CVE-2017-5337?

Upgrade to a fixed version.

## Is CVE-2017-5337 being exploited?

There is no known exploitation of CVE-2017-5337 in the wild and no public exploit code.

## Other vulnerabilities in Gnu Gnutls

- [CVE-2008-1948](https://insights.sbomify.com/CVE-2008-1948/): Memory corruption in n/a (critical 10.0)
- [CVE-2017-5334](https://insights.sbomify.com/CVE-2017-5334/): Use after free in n/a (critical 9.8)
- [CVE-2017-5336](https://insights.sbomify.com/CVE-2017-5336/): Memory corruption in n/a (critical 9.8)
- [CVE-2008-1949](https://insights.sbomify.com/CVE-2008-1949/): Null dereference in n/a (critical 9.3)
- [CVE-2004-2531](https://insights.sbomify.com/CVE-2004-2531/): Denial of service in n/a (high 7.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-5337 and fix it if it is affected.

What it is: CVE-2017-5337 is a critical memory corruption vulnerability in Gnu Gnutls, published on 24 Mar 2017. 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-2017-5337 in the wild and no public exploit code.

Affected product: Gnu Gnutls. 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-2017-5337/ (Markdown: https://insights.sbomify.com/CVE-2017-5337/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-5337
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-5337
- OSV: https://osv.dev/vulnerability/CVE-2017-5337

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-5337/
Summaries are generated and may contain mistakes; the official description above is the record.