# CVE-2023-46840: xen: Incorrect placement of a preprocessor directive in source code results in logic that doesn't operate as intended when...

CVE-2023-46840 is fixed in xen on 1 platform, first by DEBIAN-CVE-2023-46840, released March 20, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-46840
- Priority: Routine
- CVSS: 4.1 (medium)
- EPSS: 0.0026
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 20, 2024

## Description

Incorrect placement of a preprocessor directive in source code results in logic that doesn't operate as intended when support for HVM guests is compiled out of Xen.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | xen Debian 12.15 (bookworm) | 4.17.3+10-g091466ba55-1~deb12u1 | [DEBIAN-CVE-2023-46840](https://patchblox.com/security/data/fix/linux/debian-cve-2023-46840.md) | Mar 20, 2024 |
| Linux | xen Debian 13.5 (trixie) | 4.17.3+10-g091466ba55-1 | [DEBIAN-CVE-2023-46840](https://patchblox.com/security/data/fix/linux/debian-cve-2023-46840.md) | Mar 20, 2024 |
| Linux | xen Debian 14 | 4.17.3+10-g091466ba55-1 | [DEBIAN-CVE-2023-46840](https://patchblox.com/security/data/fix/linux/debian-cve-2023-46840.md) | Mar 20, 2024 |

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