TI-2022-14865 Aliases CVE-2022-33747 GHSA-wp5g-757j-v342

Arm: unbounded memory consumption for 2nd-level page tables Certain actions require e.g.

LOW 18CWE-404Published 2022-10-11 · Updated 2024-08-03

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-404.

Summary

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.

Why it matters now

EPSS 0.00285 21st percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Xen	xen	—	—	No fix listed	CNA

xen VendorXen Affected — Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPE	Versions	Role	Vendor
cpe:2.3:o:xen:xen:::::::arm:*	all versions	Vulnerable	Xen
cpe:2.3:o:fedoraproject:fedora:35:::::::*	35	Vulnerable	Fedoraproject
cpe:2.3:o:fedoraproject:fedora:36:::::::*	36	Vulnerable	Fedoraproject
cpe:2.3:o:fedoraproject:fedora:37:::::::*	37	Vulnerable	Fedoraproject
cpe:2.3:o:debian:debian_linux:11.0:::::::*	11.0	Vulnerable	Debian

cpe:2.3:o:xen:xen:*:*:*:*:*:*:arm:* Versions all versions Vulnerable ·Xen
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* Versions 36 Vulnerable ·Fedoraproject
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:* Versions 37 Vulnerable ·Fedoraproject
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

No fixed version listed by the sources yet.

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Advisory · 2022-10-11
xen — FEDORA-2022-d80cc73088
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2022-14864 P2M pool freeing may take excessively long The P2M pool backing second level address…Priority LOW 29
- TI-2022-14866 Improper handling of exceptional conditions in xenPriority LOW 25
Show all 3 records → Advisory →
Advisory · 2022-10-11
xen — FEDORA-2022-5b594b82ac
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2022-14864 P2M pool freeing may take excessively long The P2M pool backing second level address…Priority LOW 29
- TI-2022-14866 Improper handling of exceptional conditions in xenPriority LOW 25
Show all 3 records → Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2022-33747
2026-10-03 Alias added: GHSA-wp5g-757j-v342

References

Patch 3

Advisory 5

TI-2012-00210 The x86-64 kernel system-call functionality in Xen 4.1.2 and earlier, as used in Citrix… CVSS 2.0HIGH 7.2
TI-2023-07042 Information disclosure through error messages in AMD Ryzen™ 3000 Series Desktop… CVSS 3.1MEDIUM 5.5
TI-2015-04333 The C+ mode offload emulation in the RTL8139 network card device model in QEMU, as used… CVSS 2.0HIGH 9.3
TI-2015-06741 The KVM subsystem in the Linux kernel through 4.2.6, and Xen 4.3.x through 4.6.x, allows… CVSS 3.1CRITICAL 10.0
TI-2018-06436 A statement in the System Programming Guide of the Intel 64 and IA-32 Architectures… CVSS 3.0HIGH 7.8
TI-2024-20522 x86: Incorrect logic for BTC/SRSO mitigations CVSS 3.1HIGH 7.5

See all 489 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences