# CVE-2018-1000035: Memory corruption in n/a

> Heap-based buffer overflow in Info-Zip UnZip allows attackers to cause denial of service or potentially execute code via password-protected archives.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 9 Feb 2018
- **Updated:** 5 Aug 2024
- **Also known as:** ALPINE-CVE-2018-1000035, AZL-35339, AZL-6941, DEBIAN-CVE-2018-1000035, DLA-2082-1, GHSA-v5xf-cfj4-rv57, SUSE-SU-2018:0465-1, UBUNTU-CVE-2018-1000035

## What is CVE-2018-1000035?

CVE-2018-1000035 is a high-severity memory corruption vulnerability in n/a, published on 9 Feb 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

A heap-based buffer overflow exists in Info-Zip UnZip version <= 6.00 in the processing of password-protected archives that allows an attacker to perform a denial of service or to possibly achieve code execution.

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

## Which versions are affected by CVE-2018-1000035?

It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `unzip` | SUSE:Linux Enterprise Server 11 SP4 | All versions | 6.00-11.18.3.1 |
| `unzip` | SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 6.00-11.18.3.1 |

Products: Unzip Project Unzip.

## How do I fix CVE-2018-1000035?

Apply the vendor's patch.

## Is CVE-2018-1000035 being exploited?

There is no known exploitation of CVE-2018-1000035 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2020-36561](https://insights.sbomify.com/CVE-2020-36561/): Path traversal in github.com/yi-ge/unzip (critical 9.1)
- [CVE-2018-18384](https://insights.sbomify.com/CVE-2018-18384/): Memory corruption in n/a (medium 5.5)
- [CVE-2014-9913](https://insights.sbomify.com/CVE-2014-9913/): Memory corruption in n/a (medium 4.0)
- [CVE-2016-9844](https://insights.sbomify.com/CVE-2016-9844/): Memory corruption in n/a (medium 4.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-1000035 and fix it if it is affected.

What it is: CVE-2018-1000035 is a high-severity memory corruption vulnerability in n/a, published on 9 Feb 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-1000035 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-2018-1000035/ (Markdown: https://insights.sbomify.com/CVE-2018-1000035/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-1000035
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-1000035
- OSV: https://osv.dev/vulnerability/CVE-2018-1000035

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-1000035/
Summaries are generated and may contain mistakes; the official description above is the record.