CVE-2024-45819

MEDIUM 5.5

libxl leaks data to PVH guests via ACPI tables

CVSS Score

5.5

EPSS Score

0.0%

EPSS Percentile

0th

PVH guests have their ACPI tables constructed by the toolstack. The construction involves building the tables in local memory, which are then copied into guest memory. While actually used parts of the local memory are filled in correctly, excess space that is being allocated is left with its prior contents.

Vendor	xen
Product	xen
Published	Dec 19, 2024
Last Updated	Dec 31, 2024

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Affected Versions

Xen / Xen

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

xenbits.xenproject.org: https://xenbits.xenproject.org/xsa/advisory-464.html openwall.com: http://www.openwall.com/lists/oss-security/2024/11/12/1 xenbits.xen.org: http://xenbits.xen.org/xsa/advisory-464.html openwall.com: http://www.openwall.com/lists/oss-security/2024/11/12/10 openwall.com: http://www.openwall.com/lists/oss-security/2024/11/12/7

Credits

This issue was discovered by Jason Andryuk of AMD.