CVE-2024-45819

libxl leaks data to PVH guests via ACPI tables

State: Published
Severity: 5.5 Medium
Published: Dec 19, 2024
Updated: Dec 31, 2024
Reserved: Sep 9, 2024

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	5.5 Medium	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	CISA-ADP

Weaknesses

CWE-276 Incorrect Default Permissions

Affected Products

Product	Versions
XenXen	consult Xen advisory XSA-464Unknown

References

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

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.