# CVE-2013-7098: Memory corruption in n/a

> A heap overflow in OpenConnect VPN client with GnuTLS allows attackers to execute code or cause denial of service when MTU is increased on reconnection.

- **Severity:** Critical 9.8 (`CVSS:3.1/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:** 13 Feb 2020
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2013-7098, GHSA-5fg5-5jx7-ph2f

## What is CVE-2013-7098?

CVE-2013-7098 is a critical memory corruption vulnerability in n/a, published on 13 Feb 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

OpenConnect VPN client with GnuTLS before 5.02 contains a heap overflow if MTU is increased on reconnection.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2013-7098?

It affects 1 product.


Products: Infradead Openconnect.

## How do I fix CVE-2013-7098?

Upgrade to a fixed version.

## Is CVE-2013-7098 being exploited?

There is no known exploitation of CVE-2013-7098 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2012-3291](https://insights.sbomify.com/CVE-2012-3291/): Memory corruption in n/a (high 7.8)
- [CVE-2010-3901](https://insights.sbomify.com/CVE-2010-3901/): Security feature bypass in n/a (medium 6.4)
- [CVE-2020-12105](https://insights.sbomify.com/CVE-2020-12105/): Security feature bypass in n/a (medium 5.9)
- [CVE-2012-6128](https://insights.sbomify.com/CVE-2012-6128/): Multiple stack-based buffer overflows in http.c in OpenConnect before 4.08 allow remote VPN gateways to cause a denial of service (applicati (medium 5.0)
- [CVE-2009-5009](https://insights.sbomify.com/CVE-2009-5009/): Use after free in n/a (medium 5.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2013-7098 and fix it if it is affected.

What it is: CVE-2013-7098 is a critical memory corruption vulnerability in n/a, published on 13 Feb 2020. 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-2013-7098 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-2013-7098/ (Markdown: https://insights.sbomify.com/CVE-2013-7098/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2013-7098
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2013-7098
- OSV: https://osv.dev/vulnerability/CVE-2013-7098

---
From sbomify Insights: https://insights.sbomify.com/CVE-2013-7098/
Summaries are generated and may contain mistakes; the official description above is the record.