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CVE-2022-49022

8.1 · HIGH

In the Linux kernel, the following vulnerability has been resolved: wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration Fix possible out-of-bound access in ieee80211_get_rate_du…

Published Oct 21, 2024CWE-129EPSS 0.34%

Overview

CVE-2022-49022 is a high-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

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

wifi: mac8021: fix possible oob access in ieee80211_get_rate_duration

Fix possible out-of-bound access in ieee80211_get_rate_duration routine

as reported by the following UBSAN report:

UBSAN: array-index-out-of-bounds in net/mac80211/airtime.c:455:47

index 15 is out of range for type 'u16 [12]'

CPU: 2 PID: 217 Comm: kworker/u32:10 Not tainted 6.1.0-060100rc3-generic

Hardware name: Acer Aspire TC-281/Aspire TC-281, BIOS R01-A2 07/18/2017

Workqueue: mt76 mt76u_tx_status_data [mt76_usb]

Call Trace:

<TASK>

show_stack+0x4e/0x61

dump_stack_lvl+0x4a/0x6f

dump_stack+0x10/0x18

ubsan_epilogue+0x9/0x43

__ubsan_handle_out_of_bounds.cold+0x42/0x47

ieee80211_get_rate_duration.constprop.0+0x22f/0x2a0 [mac80211]

? ieee80211_tx_status_ext+0x32e/0x640 [mac80211]

ieee80211_calc_rx_airtime+0xda/0x120 [mac80211]

ieee80211_calc_tx_airtime+0xb4/0x100 [mac80211]

mt76x02_send_tx_status+0x266/0x480 [mt76x02_lib]

mt76x02_tx_status_

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Frequently asked questions

What is CVE-2022-49022?

CVE-2022-49022 is a high-severity vulnerability. It was published on October 21, 2024 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2022-49022?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2022-49022?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49022?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49022 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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