Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2024-26825

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
17/04/2024
Last modified:
27/03/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> nfc: nci: free rx_data_reassembly skb on NCI device cleanup<br /> <br /> rx_data_reassembly skb is stored during NCI data exchange for processing<br /> fragmented packets. It is dropped only when the last fragment is processed<br /> or when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received.<br /> However, the NCI device may be deallocated before that which leads to skb<br /> leak.<br /> <br /> As by design the rx_data_reassembly skb is bound to the NCI device and<br /> nothing prevents the device to be freed before the skb is processed in<br /> some way and cleaned, free it on the NCI device cleanup.<br /> <br /> Found by Linux Verification Center (linuxtesting.org) with Syzkaller.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 3.2 (including) 4.19.307 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.20 (including) 5.4.269 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.5 (including) 5.10.210 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.149 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 6.1.79 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.2 (including) 6.6.18 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.7.6 (excluding)
cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools