# CVE-2019-15692: Memory corruption in TigerVNC

> A heap buffer overflow in TigerVNC allows remote attackers to execute arbitrary code via network connectivity.

- **Severity:** High 7.2 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 26 Dec 2019
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2019-15692, GHSA-hc53-6v72-2h55, UBUNTU-CVE-2019-15692

## What is CVE-2019-15692?

CVE-2019-15692 is a high-severity memory corruption vulnerability in Opensuse Leap, published on 26 Dec 2019. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow. Vulnerability could be triggered from CopyRectDecoder due to incorrect value checks. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.

Weakness: CWE-787 (Out-of-bounds Write), CWE-122 (Heap-based Buffer Overflow)

## Which versions are affected by CVE-2019-15692?

It affects 2 products.


Products: Opensuse Leap, Tigervnc Tigervnc.

## How do I fix CVE-2019-15692?

Upgrade to a fixed version.

## Is CVE-2019-15692 being exploited?

There is no known exploitation of CVE-2019-15692 in the wild and no public exploit code.

## Other vulnerabilities in Opensuse Leap

- [CVE-2015-4902](https://insights.sbomify.com/CVE-2015-4902/): Oracle Java SE Integrity Check (medium 5.3, exploited in the wild)
- [CVE-2017-14804](https://insights.sbomify.com/CVE-2017-14804/): package builds could use directory traversal to write outside of target area (critical 9.9)
- [CVE-2019-20787](https://insights.sbomify.com/CVE-2019-20787/): Teeworlds before 0.7.4 has an integer overflow when computing a tilemap size. (critical 9.8)
- [CVE-2019-8341](https://insights.sbomify.com/CVE-2019-8341/): Code injection in n/a (critical 9.8)
- [CVE-2019-6438](https://insights.sbomify.com/CVE-2019-6438/): Other in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-15692 and fix it if it is affected.

What it is: CVE-2019-15692 is a high-severity memory corruption vulnerability in Opensuse Leap, published on 26 Dec 2019. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-15692 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-2019-15692/ (Markdown: https://insights.sbomify.com/CVE-2019-15692/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-15692
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-15692
- OSV: https://osv.dev/vulnerability/CVE-2019-15692

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-15692/
Summaries are generated and may contain mistakes; the official description above is the record.