PT-2022-7331 · Xen+1 · Xenstore+1

Julien Grall · Published 2022-11-01 · Updated 2022-12-09 · CVE-2022-42314

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Xenstore (affected versions not specified)

Description The issue is related to uncontrolled resource allocation in the Xenstore storage of the Xen hypervisor. Exploitation can lead to a denial of service (DoS) of xenstored. Malicious guests can cause xenstored to allocate large amounts of memory by various means, including issuing new requests without reading responses, generating a large number of watch events, creating many nodes with maximum size and path length, or accessing many nodes inside a transaction.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

BDU:2024-03587

CVE-2022-42314

DSA-5272-1

OPENSUSE-SU-2022_3947-1

OPENSUSE-SU-2022_4007-1

SUSE-SU-2022:3925-1

SUSE-SU-2022:3928-1

SUSE-SU-2022:3947-1

SUSE-SU-2022:3960-1

SUSE-SU-2022:3971-1

SUSE-SU-2022:4007-1

SUSE-SU-2022:4051-1

SUSE-SU-2022:4241-1

SUSE-SU-2022:4332-1

Affected Products

Suse

Xenstore

References · 83

• https://security-tracker.debian.org/tracker/CVE-2022-42314 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-42314 · Vendor Advisory
• http://xenbits.xen.org/xsa/advisory-326.html · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:4007-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:3960-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:3928-1 · Vendor Advisory
• https://debian.org/security/2022/dsa-5272 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:4332-1 · Vendor Advisory
• https://xenbits.xenproject.org/xsa/advisory-326.txt · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:3925-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-03587 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2022:4051-1 · Vendor Advisory