PT-2022-7320 · Xenstore+1 · Xenstore+1

Julien Grall · Published 2022-11-01 · Updated 2024-02-04 · CVE-2022-42319

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 memory allocation and deallocation in Xenstore. When working on a request from a guest, Xenstore may allocate large amounts of memory temporarily. This memory is only freed after the request has been completed, which is considered finished only after the guest has read the response message from the ring page. If a guest does not read the response, Xenstore may not free the temporary memory, leading to memory shortages and potentially causing a Denial of Service (DoS) of Xenstore.

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

DoS

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

BDU:2024-03576

CVE-2022-42319

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-2022:4241-1

SUSE-SU-2022:4332-1

Affected Products

Suse

Xenstore

References · 85

• http://xenbits.xen.org/xsa/advisory-416.html · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-42319 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2022:4007-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-42319 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2022:3960-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-42319 · Security Note
• 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://osv.dev/vulnerability/CVE-2022-42319 · 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://osv.dev/vulnerability/UBUNTU-CVE-2022-42319 · Vendor Advisory