CVE-2022-23033

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Source
https://cve.org/CVERecord?id=CVE-2022-23033
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-23033.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-23033
Downstream
ALPINE (1)
DEBIAN (1)
openSUSE (2)
SUSE (4)
UBUNTU (1)
Related
openSUSE (2)
SUSE (4)
Published
2022-01-25T14:15:08Z
Modified
2026-03-13T05:32:43Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

arm: guest_physmap_remove_page not removing the p2m mappings The functions to remove one or more entries from a guest p2m pagetable on Arm (p2m_remove_mapping, guest_physmap_remove_page, and p2m_set_entry with mfn set to INVALID_MFN) do not actually clear the pagetable entry if the entry doesn't have the valid bit set. It is possible to have a valid pagetable entry without the valid bit set when a guest operating system uses set/way cache maintenance instructions. For instance, a guest issuing a set/way cache maintenance instruction, then calling the XENMEM_decrease_reservation hypercall to give back memory pages to Xen, might be able to retain access to those pages even after Xen started reusing them for other purposes.

References

Affected packages

Git /

Affected ranges

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-23033.json"
unresolved_ranges 
[
    {
        "events":  [
            {
                "introduced":  "4.12.0"
            }
        ]
    },
    {
        "events":  [
            {
                "introduced":  "0"
            },
            {
                "last_affected":  "34"
            }
        ]
    },
    {
        "events":  [
            {
                "introduced":  "0"
            },
            {
                "last_affected":  "11.0"
            }
        ]
    }
]