DEBIAN-CVE-2022-33747

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    DEBIAN-CVE-2022-33747

    Published: 11 Oct 2022Last Modified: 1 Sept 2026
    Upstream:
    CVE-2022-33747

    Summary:

    Details: Arm: unbounded memory consumption for 2nd-level page tables Certain actions require e.g. removing pages from a guest's P2M (Physical-to-Machine) mapping. When large pages are in use to map guest pages in the 2nd-stage page tables, such a removal operation may incur a memory allocation (to replace a large mapping with individual smaller ones). These memory allocations are taken from the global memory pool. A malicious guest might be able to cause the global memory pool to be exhausted by manipulating its own P2M mappings.

    References: https://security-tracker.debian.org/tracker/CVE-2022-33747

    Affected packages

    Package

    Name: xen

    Purl: pkg:deb/debian/xen?arch=source&distro=bookworm

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.16.2+90-g0d39a6d1ae-1

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    DEBIAN-CVE-2022-33747 | CVE-DB