CVE-2024-41071

wifi: mac80211: Avoid address calculations via out of bounds array indexing

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

NVD
RedHat

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211: Avoid address calculations via out of bounds array indexing

req->n_channels must be set before req->channels[] can be used.

This patch fixes one of the issues encountered in [1].

[ 83.964255] UBSAN: array-index-out-of-bounds in net/mac80211/scan.c:364:4
[ 83.964258] index 0 is out of range for type 'struct ieee80211_channel *[]'
[...]
[ 83.964264] Call Trace:
[ 83.964267] <TASK>
[ 83.964269] dump_stack_lvl+0x3f/0xc0
[ 83.964274] __ubsan_handle_out_of_bounds+0xec/0x110
[ 83.964278] ieee80211_prep_hw_scan+0x2db/0x4b0
[ 83.964281] __ieee80211_start_scan+0x601/0x990
[ 83.964291] nl80211_trigger_scan+0x874/0x980
[ 83.964295] genl_family_rcv_msg_doit+0xe8/0x160
[ 83.964298] genl_rcv_msg+0x240/0x270
[...]

[1] https://bugzilla.kernel.org/show_bug.cgi?id=218810

An out-of-bounds buffer overflow has been found in the Linux kernel’s mac80211 subsystem when scanning for SSIDs. Address calculation using out-of-bounds array indexing could result in an attacker crafting an exploit, resulting in the complete compromise of a system.

*Credits: N/A

CVSS Scores

Red Hatv3.1 7.8

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-07-12 CVE Reserved
2024-07-29 CVE Published
2024-10-18 EPSS Updated
2024-11-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/stable/c/a2bb0c5d0086be5ab5054465dfaa381a1144905c	2024-10-17
https://git.kernel.org/stable/c/26b177ecdd311f20de4c379f0630858a675dfc0c	2024-10-17
https://git.kernel.org/stable/c/4f43a614b1b84f0d1e3c48cc541c3bfdf414a6d0	2024-07-25
https://git.kernel.org/stable/c/2663d0462eb32ae7c9b035300ab6b1523886c718	2024-06-14

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2024-41071	2024-10-01
https://bugzilla.redhat.com/show_bug.cgi?id=2300448	2024-10-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.1.113 Search vendor "Linux" for product "Linux Kernel" and version " < 6.1.113"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.6.57 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6.57"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.9.11 Search vendor "Linux" for product "Linux Kernel" and version " < 6.9.11"		en		Affected
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 6.10 Search vendor "Linux" for product "Linux Kernel" and version " < 6.10"		en		Affected