Intel Xeon dmaengine hardware logic with insecure de-synchronization between control and data channels

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Intel Xeon. This impacts an unknown function of the component dmaengine. The manipulation results in an unknown weakness. This vulnerability is reported as CVE-2024-21823. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability was found in Intel Xeon (the affected version unknown). It has been classified as problematic. Affected is an unknown part of the component dmaengine. CWE is classifying the issue as CWE-1264. The hardware logic for error handling and security checks can incorrectly forward data before the security check is complete. This is going to have an impact on integrity, and availability. CVE summarizes:

Hardware logic with insecure de-synchronization in Intel(R) DSA and Intel(R) IAA for some Intel(R) 4th or 5th generation Xeon(R) processors may allow an authorized user to potentially enable denial of service via local access.

The advisory is shared for download at intel.com. This vulnerability is traded as CVE-2024-21823 since 01/24/2024. The exploitability is told to be difficult. The attack needs to be approached locally. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/01/2024).

The vulnerability scanner Nessus provides a plugin with the ID 207914 (Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2024-12682)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (207914). Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.6
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Hardware logic with insecure de-synchronization between control and data channels
CWE: CWE-1264
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 207914
Nessus Name: Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2024-12682)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/24/2024 🔍
05/14/2024 +110 days 🔍
05/14/2024 +0 days 🔍
10/01/2024 +139 days 🔍

Sourcesinfo

Vendor: intel.com

Advisory: intel-sa-01084
Status: Confirmed

CVE: CVE-2024-21823 (🔍)
GCVE (CVE): GCVE-0-2024-21823
GCVE (VulDB): GCVE-100-264372

Entryinfo

Created: 05/14/2024 23:18
Updated: 10/01/2024 00:10
Changes: 05/14/2024 23:18 (51), 08/08/2024 21:45 (14), 08/15/2024 02:47 (4), 10/01/2024 00:10 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

 Anonymous User (+0)
1 Year ago
The vulnerability affecting Intel(R) Xeon(R) processors when using Intel(R) SGX can also be related to Intel microcode.
Issues in the memory controller configurations of Intel Xeon processors may also involve microcode updates to address these vulnerabilities.
Given this, I kindly request that the CPE intel:microcode be considered in relation to this vulnerability.
Could You kindly review this also for:
CVE-2024-21823,CVE-2023-22655,CVE-2023-32666,CVE-2023-23908,CVE-2022-21216,CVE-2022-33196,CVE-2022-33972,CVE-2022-21136,CVE-2021-33117,CVE-2022-21131,CVE-2020-8670,CVE-2020-8700,CVE-2020-12357,CVE-2020-12358,CVE-2020-12359,CVE-2020-12360,CVE-2020-24486,CVE-2021-0095,CVE-2024-24980,CVE-2024-25939,CVE-2024-21853,CVE-2024-25565,CVE-2024-38660
 VulDB Community Team1 Year ago
If Intel mentions a Microcode update, we have extended the CPEs. This affects only: CVE-2022-33196, CVE-2022-33972, CVE-2024-21853, CVE-2023-23908, CVE-2024-25939. For all others this CPE might be too generic.

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