Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
Vulnerability Details :

CVE-2023-46839

Summary
Assigner-XEN
Assigner Org ID-23aa2041-22e1-471f-9209-9b7396fa234f
Published At-20 Mar, 2024 | 10:35
Updated At-21 Nov, 2024 | 19:17
Rejected At-
Credits

pci: phantom functions assigned to incorrect contexts

PCI devices can make use of a functionality called phantom functions, that when enabled allows the device to generate requests using the IDs of functions that are otherwise unpopulated. This allows a device to extend the number of outstanding requests. Such phantom functions need an IOMMU context setup, but failure to setup the context is not fatal when the device is assigned. Not failing device assignment when such failure happens can lead to the primary device being assigned to a guest, while some of the phantom functions are assigned to a different domain.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:XEN
Assigner Org ID:23aa2041-22e1-471f-9209-9b7396fa234f
Published At:20 Mar, 2024 | 10:35
Updated At:21 Nov, 2024 | 19:17
Rejected At:
▼CVE Numbering Authority (CNA)
pci: phantom functions assigned to incorrect contexts

PCI devices can make use of a functionality called phantom functions, that when enabled allows the device to generate requests using the IDs of functions that are otherwise unpopulated. This allows a device to extend the number of outstanding requests. Such phantom functions need an IOMMU context setup, but failure to setup the context is not fatal when the device is assigned. Not failing device assignment when such failure happens can lead to the primary device being assigned to a guest, while some of the phantom functions are assigned to a different domain.

Affected Products
Vendor
Xen ProjectXen
Product
Xen
Default Status
unknown
Versions

unknown

  • consult Xen advisory XSA-449
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
N/AUnder certain circumstances a malicious guest assigned a PCI device with phantom functions may be able to access memory from a previous owner of the device.
CAPEC ID: N/A
Description: Under certain circumstances a malicious guest assigned a PCI device with phantom functions may be able to access memory from a previous owner of the device.
Solutions
Configurations

Systems running all version of Xen are affected. Only x86 systems are vulnerable. Arm systems are not vulnerable. Only systems using PCI passthrough of devices with phantom functions are affected.

Workarounds

There is no mitigation (other than not passing through PCI devices with phantom functions to guests).

Exploits
Credits
finder
This issue was discovered by Roger Pau Monné of XenServer.
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://xenbits.xenproject.org/xsa/advisory-449.html
N/A
Hyperlink: https://xenbits.xenproject.org/xsa/advisory-449.html
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://xenbits.xenproject.org/xsa/advisory-449.html
x_transferred
Hyperlink: https://xenbits.xenproject.org/xsa/advisory-449.html
Resource:
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Problem Types
TypeCWE IDDescription
CWECWE-noinfoCWE-noinfo Not enough information
Type: CWE
CWE ID: CWE-noinfo
Description: CWE-noinfo Not enough information
Metrics
VersionBase scoreBase severityVector
3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@xen.org
Published At:20 Mar, 2024 | 11:15
Updated At:21 Nov, 2024 | 20:15

PCI devices can make use of a functionality called phantom functions, that when enabled allows the device to generate requests using the IDs of functions that are otherwise unpopulated. This allows a device to extend the number of outstanding requests. Such phantom functions need an IOMMU context setup, but failure to setup the context is not fatal when the device is assigned. Not failing device assignment when such failure happens can lead to the primary device being assigned to a guest, while some of the phantom functions are assigned to a different domain.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Type: Secondary
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CPE Matches
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://xenbits.xenproject.org/xsa/advisory-449.htmlsecurity@xen.org
N/A
https://xenbits.xenproject.org/xsa/advisory-449.htmlaf854a3a-2127-422b-91ae-364da2661108
N/A
Hyperlink: https://xenbits.xenproject.org/xsa/advisory-449.html
Source: security@xen.org
Resource: N/A
Hyperlink: https://xenbits.xenproject.org/xsa/advisory-449.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

6Records found
CVE-2023-46840
Matching Score-6
Assigner-Xen Project
ShareView Details
Matching Score-6
Assigner-Xen Project
CVSS Score-4.1||MEDIUM
EPSS-0.02% / 4.44%
||
7 Day CHG~0.00%
Published-20 Mar, 2024 | 10:40
Updated-04 Nov, 2024 | 22:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
VT-d: Failure to quarantine devices in !HVM builds

Incorrect placement of a preprocessor directive in source code results in logic that doesn't operate as intended when support for HVM guests is compiled out of Xen.

Action-Not Available
Vendor-Xen Project
Product-Xen
CVE-2024-22013
Matching Score-4
Assigner-Google Devices
ShareView Details
Matching Score-4
Assigner-Google Devices
CVSS Score-5.3||MEDIUM
EPSS-0.09% / 25.67%
||
7 Day CHG~0.00%
Published-16 Sep, 2024 | 19:52
Updated-06 Nov, 2024 | 21:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

U-Boot environment is read from unauthenticated partition.

Action-Not Available
Vendor-Google LLC
Product-Nest Wifi Pro
CVE-2024-22006
Matching Score-4
Assigner-Google Devices
ShareView Details
Matching Score-4
Assigner-Google Devices
CVSS Score-5.3||MEDIUM
EPSS-0.08% / 25.09%
||
7 Day CHG~0.00%
Published-11 Mar, 2024 | 18:55
Updated-03 Apr, 2025 | 15:53
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

OOB read in the TMU plugin that allows for memory disclosure in the power management subsystem of the device.

Action-Not Available
Vendor-Google LLC
Product-androidAndroid
CWE ID-CWE-125
Out-of-bounds Read
CVE-2023-40122
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
ShareView Details
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
CVSS Score-5.3||MEDIUM
EPSS-0.05% / 15.99%
||
7 Day CHG~0.00%
Published-16 Feb, 2024 | 00:08
Updated-26 Nov, 2024 | 16:32
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In applyCustomDescription of SaveUi.java, there is a possible way to view other user's images due to a confused deputy. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.

Action-Not Available
Vendor-Google LLC
Product-androidAndroid
CVE-2024-41517
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-5.3||MEDIUM
EPSS-0.15% / 36.34%
||
7 Day CHG~0.00%
Published-02 Aug, 2024 | 00:00
Updated-28 Oct, 2024 | 21:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An Incorrect Access Control vulnerability in "/admin/benutzer/institution/rechteverwaltung/uebersicht" in Feripro <= v2.2.3 allows remote attackers to get a list of all users and their corresponding privileges.

Action-Not Available
Vendor-mecodian/amecodia
Product-feripron/aferipro
CVE-2024-26458
Matching Score-4
Assigner-MITRE Corporation
ShareView Details
Matching Score-4
Assigner-MITRE Corporation
CVSS Score-5.3||MEDIUM
EPSS-0.21% / 43.05%
||
7 Day CHG-0.01%
Published-26 Feb, 2024 | 00:00
Updated-06 Dec, 2024 | 21:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Kerberos 5 (aka krb5) 1.21.2 contains a memory leak in /krb5/src/lib/rpc/pmap_rmt.c.

Action-Not Available
Vendor-n/a
Product-n/a
Details not found