Xen up to 4.16.x IRQ denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Xen up to 4.16.x. It has been rated as critical. The impacted element is an unknown function of the component IRQ Handler. This manipulation causes denial of service. This vulnerability appears as CVE-2024-31143. There is no available exploit. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability was found in Xen up to 4.16.x. It has been declared as critical. Affected by this vulnerability is an unknown function of the component IRQ Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

An optional feature of PCI MSI called "Multiple Message" allows a device to use multiple consecutive interrupt vectors. Unlike for MSI-X, the setting up of these consecutive vectors needs to happen all in one go. In this handling an error path could be taken in different situations, with or without a particular lock held. This error path wrongly releases the lock even when it is not currently held.

It is possible to read the advisory at xenbits.xen.org. This vulnerability is known as CVE-2024-31143 since 03/28/2024. The exploitation appears to be easy. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 207717 (SUSE SLES15 Security Update : xen (SUSE-SU-2024:3423-1)), which helps to determine the existence of the flaw in a target environment.

Applying the patch XSA-458 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at Tenable (207717). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 207717
Nessus Name: SUSE SLES15 Security Update : xen (SUSE-SU-2024:3423-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: XSA-458

Timelineinfo

03/28/2024 🔍
07/16/2024 +109 days 🔍
07/16/2024 +0 days 🔍
09/30/2024 +76 days 🔍

Sourcesinfo

Advisory: XSA-458
Status: Confirmed

CVE: CVE-2024-31143 (🔍)
GCVE (CVE): GCVE-0-2024-31143
GCVE (VulDB): GCVE-100-271663

Entryinfo

Created: 07/16/2024 17:23
Updated: 09/30/2024 12:25
Changes: 07/16/2024 17:23 (54), 07/19/2024 06:28 (1), 07/19/2024 11:44 (1), 08/22/2024 00:40 (12), 09/30/2024 12:25 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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