All vulnerabilities

Servers and applications

CVE-2022-42331

x86: speculative vulnerability in 32bit SYSCALL path Due to an oversight in the very original Spectre/Meltdown security work (XSA-254), one entrypath performs its speculation-safety actions too late. In some configurations, there is an unprotected RET instruction which can be attacked with a variety of speculative attacks.

Severity
Medium 5.5
Published
21 Mar 2023
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
XenServers and applications · cpe:o:xen:xen
  • From 4.5.0 up to 4.17.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2022-42331
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2022-42331