# CVE-2023-34320: xen: Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412 where software, under certain circumstances, could d...

CVE-2023-34320 is fixed in xen on 1 platform, first by DEBIAN-CVE-2023-34320, released December 8, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-34320
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0024
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 8, 2023

## Description

Cortex-A77 cores (r0p0 and r1p0) are affected by erratum 1508412 where software, under certain circumstances, could deadlock a core due to the execution of either a load to device or non-cacheable memory, and either a store exclusive or register read of the Physical Address Register (PAR_EL1) in close proximity.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | xen Debian 12.15 (bookworm) | 4.17.2+76-ge1f9cb16e2-1~deb12u1 | [DEBIAN-CVE-2023-34320](https://patchblox.com/security/data/fix/linux/debian-cve-2023-34320.md) | Dec 8, 2023 |
| Linux | xen Debian 13.5 (trixie) | 4.17.2-1 | [DEBIAN-CVE-2023-34320](https://patchblox.com/security/data/fix/linux/debian-cve-2023-34320.md) | Dec 8, 2023 |
| Linux | xen Debian 14 | 4.17.2-1 | [DEBIAN-CVE-2023-34320](https://patchblox.com/security/data/fix/linux/debian-cve-2023-34320.md) | Dec 8, 2023 |

---

Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.