# CVE-2020-27350: apt integer wraparound

> Integer overflows in APT's .deb parsing allow attackers to cause crashes or potentially execute code via malicious packages.

- **Severity:** Medium 5.7 (`CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 10 Dec 2020
- **Updated:** 17 Sep 2024
- **Also known as:** DEBIAN-CVE-2020-27350, DLA-2487-1, DSA-4808-1, GHSA-j2wg-wfjw-m5cq, UBUNTU-CVE-2020-27350, USN-4667-1, USN-4667-2

## What is CVE-2020-27350?

CVE-2020-27350 is a medium-severity vulnerability in Netapp Solidfire Baseboard Management Controller Firmware, published on 10 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

APT had several integer overflows and underflows while parsing .deb packages, aka GHSL-2020-168 GHSL-2020-169, in files apt-pkg/contrib/extracttar.cc, apt-pkg/deb/debfile.cc, and apt-pkg/contrib/arfile.cc. This issue affects: apt 1.2.32ubuntu0 versions prior to 1.2.32ubuntu0.2; 1.6.12ubuntu0 versions prior to 1.6.12ubuntu0.2; 2.0.2ubuntu0 versions prior to 2.0.2ubuntu0.2; 2.1.10ubuntu0 versions prior to 2.1.10ubuntu0.1;

Weakness: CWE-190 (Integer Overflow or Wraparound)

## Which versions are affected by CVE-2020-27350?

It affects 2 products.


Products: Debian Advanced Package Tool, Netapp Solidfire Baseboard Management Controller Firmware.

## How do I fix CVE-2020-27350?

Apply the vendor's patch.

## Is CVE-2020-27350 being exploited?

There is no known exploitation of CVE-2020-27350 in the wild and no public exploit code.

## Other vulnerabilities in Netapp Solidfire Baseboard Management Controller Firmware

- [CVE-2009-1358](https://insights.sbomify.com/CVE-2009-1358/): Security feature bypass in n/a (critical 10.0)
- [CVE-2009-1300](https://insights.sbomify.com/CVE-2009-1300/): Denial of service in n/a (critical 10.0)
- [CVE-2014-0487](https://insights.sbomify.com/CVE-2014-0487/): Security feature bypass in n/a (high 7.5)
- [CVE-2014-0489](https://insights.sbomify.com/CVE-2014-0489/): Code injection in n/a (high 7.5)
- [CVE-2014-0490](https://insights.sbomify.com/CVE-2014-0490/): Code injection in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-27350 and fix it if it is affected.

What it is: CVE-2020-27350 is a medium-severity vulnerability in Netapp Solidfire Baseboard Management Controller Firmware, published on 10 Dec 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-27350 in the wild and no public exploit code.

Affected product: Netapp Solidfire Baseboard Management Controller Firmware. 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-2020-27350/ (Markdown: https://insights.sbomify.com/CVE-2020-27350/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-27350
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-27350
- OSV: https://osv.dev/vulnerability/CVE-2020-27350

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-27350/
Summaries are generated and may contain mistakes; the official description above is the record.