# CVE-2020-17445: Memory corruption in n/a

> An out-of-bounds read in picoTCP's IPv6 destination options processing can lead to denial of service.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Dec 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-fcfc-3847-rccf

## What is CVE-2020-17445?

CVE-2020-17445 is a high-severity memory corruption vulnerability in n/a, published on 11 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 destination options does not check for a valid length of the destination options header. This results in an Out-of-Bounds Read, and, depending on the memory protection mechanism, this may result in Denial-of-Service in pico_ipv6_process_destopt() in pico_ipv6.c.

Weakness: CWE-125 (Out-of-bounds Read)

## Which versions are affected by CVE-2020-17445?

It affects 1 product.


Products: Altran Picotcp.

## How do I fix CVE-2020-17445?

No fix has been published for CVE-2020-17445 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-17445 being exploited?

There is no known exploitation of CVE-2020-17445 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2021-33304](https://insights.sbomify.com/CVE-2021-33304/): Use after free in n/a (critical 9.8)
- [CVE-2020-24338](https://insights.sbomify.com/CVE-2020-24338/): Memory corruption in n/a (critical 9.8)
- [CVE-2017-1000210](https://insights.sbomify.com/CVE-2017-1000210/): Memory corruption in n/a (critical 9.8)
- [CVE-2020-17441](https://insights.sbomify.com/CVE-2020-17441/): Information disclosure in n/a (critical 9.1)
- [CVE-2020-24341](https://insights.sbomify.com/CVE-2020-24341/): Information disclosure in n/a (critical 9.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-17445 and fix it if it is affected.

What it is: CVE-2020-17445 is a high-severity memory corruption vulnerability in n/a, published on 11 Dec 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-2020-17445 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-2020-17445/ (Markdown: https://insights.sbomify.com/CVE-2020-17445/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-17445
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-17445
- OSV: https://osv.dev/vulnerability/CVE-2020-17445

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-17445/
Summaries are generated and may contain mistakes; the official description above is the record.