# CVE-2024-32921: Memory corruption in Android

> A missing bounds check in Android's fence initialization allows local attackers to escalate privileges via an out-of-bounds write.

- **Severity:** High 7.4 (`CVSS:3.1/AV:L/AC:H/PR:N/UI:N/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:** Not needed
- **Fix available:** Yes
- **Published:** 13 Jun 2024
- **Updated:** 20 Aug 2024
- **Also known as:** A-322326009, GHSA-gc3r-pjrv-f3xv, PUB-A-322326009

## What is CVE-2024-32921?

CVE-2024-32921 is a high-severity memory corruption vulnerability in Google Android, published on 13 Jun 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In lwis_initialize_transaction_fences of lwis_fence.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.

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

## Which versions are affected by CVE-2024-32921?

It affects 1 product.


Products: Google Android.

## How do I fix CVE-2024-32921?

Apply the vendor's patch.

## Is CVE-2024-32921 being exploited?

There is no known exploitation of CVE-2024-32921 in the wild and no public exploit code.

## Other vulnerabilities in Google Android

- [CVE-2026-58704](https://insights.sbomify.com/CVE-2026-58704/): Google Pixel Improper Authorization (high 8.8, exploited in the wild)
- [CVE-2025-48543](https://insights.sbomify.com/CVE-2025-48543/): Android Runtime Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2023-35674](https://insights.sbomify.com/CVE-2023-35674/): Android Framework Privilege Escalation (high 8.8, exploited in the wild)
- [CVE-2025-48595](https://insights.sbomify.com/CVE-2025-48595/): Android Framework Integer Overflow (high 8.4, exploited in the wild)
- [CVE-2024-32896](https://insights.sbomify.com/CVE-2024-32896/): Android Pixel Privilege Escalation (high 8.1, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-32921 and fix it if it is affected.

What it is: CVE-2024-32921 is a high-severity memory corruption vulnerability in Google Android, published on 13 Jun 2024. 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-2024-32921 in the wild and no public exploit code.

Affected product: Google Android. 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-2024-32921/ (Markdown: https://insights.sbomify.com/CVE-2024-32921/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-32921
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-32921
- OSV: https://osv.dev/vulnerability/CVE-2024-32921

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-32921/
Summaries are generated and may contain mistakes; the official description above is the record.