# CVE-2024-31142: xen: Because of a logical error in XSA-407 (Branch Type Confusion), the mitigation is not applied properly when it is inte...

CVE-2024-31142 is fixed in xen on 1 platform, first by DEBIAN-CVE-2024-31142, released May 16, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2024-31142
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.1744
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 16, 2024

## Description

Because of a logical error in XSA-407 (Branch Type Confusion), the mitigation is not applied properly when it is intended to be used. XSA-434 (Speculative Return Stack Overflow) uses the same infrastructure, so is equally impacted.  For more details, see:   https://xenbits.xen.org/xsa/advisory-407.html   https://xenbits.xen.org/xsa/advisory-434.html

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | xen Debian 12.15 (bookworm) | 4.17.5+23-ga4e5191dc0-1 | [DEBIAN-CVE-2024-31142](https://patchblox.com/security/data/fix/linux/debian-cve-2024-31142.md) | May 16, 2024 |
| Linux | xen Debian 13.5 (trixie) | 4.19.1-1 | [DEBIAN-CVE-2024-31142](https://patchblox.com/security/data/fix/linux/debian-cve-2024-31142.md) | May 16, 2024 |
| Linux | xen Debian 14 | 4.19.1-1 | [DEBIAN-CVE-2024-31142](https://patchblox.com/security/data/fix/linux/debian-cve-2024-31142.md) | May 16, 2024 |

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