In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: change DMA direction while mapping reinjected packets For fragmented packets, ath12k reassembles each fragment as a normal packet and then reinjects it into HW ring. In this case, the DMA direction should be DMA_TO_DEVICE, not DMA_FROM_DEVICE. Otherwise, an invalid payload may be reinjected into the HW and subsequently delivered to the host. Given that arbitrary memory can be allocated to the skb buffer, knowledge about the data contained in the reinjected buffer is lacking. Consequently, there’s a risk of private information being leaked. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00209-QCAHKSWPL_SILICONZ-1

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact Low

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

No data.

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/33322e3ef07409278a18c6919c448e369d66a18e cve-icon cve-icon
https://git.kernel.org/stable/c/6925320fcd40d8042d32bf4ede8248e7a5315c3b cve-icon cve-icon
https://git.kernel.org/stable/c/e99d9b16ff153de9540073239d24adc3b0a3a997 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024082138-CVE-2024-43881-ead4@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2024-43881 cve-icon
https://www.cve.org/CVERecord?id=CVE-2024-43881 cve-icon
History

Thu, 26 Sep 2024 10:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-402
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

 cvssV3_1

{'score': 6.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L'}

Wed, 11 Sep 2024 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 21 Aug 2024 21:30:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate

Wed, 21 Aug 2024 00:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: change DMA direction while mapping reinjected packets For fragmented packets, ath12k reassembles each fragment as a normal packet and then reinjects it into HW ring. In this case, the DMA direction should be DMA_TO_DEVICE, not DMA_FROM_DEVICE. Otherwise, an invalid payload may be reinjected into the HW and subsequently delivered to the host. Given that arbitrary memory can be allocated to the skb buffer, knowledge about the data contained in the reinjected buffer is lacking. Consequently, there’s a risk of private information being leaked. Tested-on: QCN9274 hw2.0 PCI WLAN.WBE.1.1.1-00209-QCAHKSWPL_SILICONZ-1
Title wifi: ath12k: change DMA direction while mapping reinjected packets
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-08-21T00:06:33.622Z

Updated: 2024-11-05T09:41:43.879Z

Reserved: 2024-08-17T09:11:59.287Z

Link: CVE-2024-43881

cve-icon Vulnrichment

Updated: 2024-09-11T12:42:19.051Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-08-21T01:15:12.280

Modified: 2024-08-21T12:30:33.697

Link: CVE-2024-43881

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-08-21T00:00:00Z

Links: CVE-2024-43881 - Bugzilla