# CVE-2018-10733: Memory corruption in n/a

> A heap-based buffer over-read in libgxps allows remote attackers to cause a denial of service via crafted input.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/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:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 4 May 2018
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2018-10733, GHSA-8r7v-mcwp-4qfm, MGASA-2019-0003, SUSE-SU-2019:0720-1, SUSE-SU-2020:1687-1, UBUNTU-CVE-2018-10733, openSUSE-SU-2019:1120-1

## What is CVE-2018-10733?

CVE-2018-10733 is a medium-severity memory corruption vulnerability in Opensuse Leap, published on 4 May 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

There is a heap-based buffer over-read in the function ft_font_face_hash of gxps-fonts.c in libgxps through 0.3.0. A crafted input will lead to a remote denial of service attack.

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

## Which versions are affected by CVE-2018-10733?

It affects 6 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `libgxps` | SUSE:Linux Enterprise Module for Desktop Applications 15 | All versions | 0.3.0-4.3.29 |
| `libgxps` | SUSE:Linux Enterprise Server 12 SP4 | All versions | 0.2.2-10.3.5 |
| `libgxps` | SUSE:Linux Enterprise Server 12 SP5 | All versions | 0.2.2-10.3.5 |
| `libgxps` | SUSE:Linux Enterprise Server for SAP Applications 12 SP4 | All versions | 0.2.2-10.3.5 |
| `libgxps` | SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 0.2.2-10.3.5 |
| `libgxps` | SUSE:Linux Enterprise Software Development Kit 12 SP4 | All versions | 0.2.2-10.3.5 |
| `libgxps` | SUSE:Linux Enterprise Software Development Kit 12 SP5 | All versions | 0.2.2-10.3.5 |
| `libgxps` | openSUSE:Leap 15.0 | All versions | 0.3.0-lp150.3.3.2 |

Products: Gnome Libgxps, Opensuse Leap, Redhat Ansible Tower, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Workstation.

## How do I fix CVE-2018-10733?

Upgrade to a fixed version.

## Is CVE-2018-10733 being exploited?

There is no known exploitation of CVE-2018-10733 in the wild and no public exploit code.

## Other vulnerabilities in Opensuse Leap

- [CVE-2017-11590](https://insights.sbomify.com/CVE-2017-11590/): Null dereference in n/a (high 7.5)
- [CVE-2018-10767](https://insights.sbomify.com/CVE-2018-10767/): Denial of service in n/a (medium 6.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-10733 and fix it if it is affected.

What it is: CVE-2018-10733 is a medium-severity memory corruption vulnerability in Opensuse Leap, published on 4 May 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2018-10733 in the wild and no public exploit code.

Affected product: Opensuse Leap. 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-2018-10733/ (Markdown: https://insights.sbomify.com/CVE-2018-10733/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-10733
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-10733
- OSV: https://osv.dev/vulnerability/CVE-2018-10733

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-10733/
Summaries are generated and may contain mistakes; the official description above is the record.