Linux Kernel BPF spl2sw_driver.c spl2sw_nvmem_get_mac_address use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.08

A vulnerability classified as critical has been found in Linux Kernel (Operating System) (unknown version). This affects the function spl2sw_nvmem_get_mac_address of the file drivers/net/ethernet/sunplus/spl2sw_driver.c of the component BPF. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 10/17/2022. The advisory is shared at git.kernel.org. This vulnerability is uniquely identified as CVE-2022-3541. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/09/2022).

Applying a patch is able to eliminate this problem. The bugfix is ready for download at git.kernel.org.

Entries connected to this vulnerability are available at VDB-266668, VDB-269017, VDB-269053 and VDB-269088.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.2

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 5.5
CNA Vector (VulDB): 🔍

CVSSv2info

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

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

10/17/2022 🔍
10/17/2022 +0 days 🔍
10/17/2022 +0 days 🔍
11/09/2022 +23 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-3541 (🔍)
See also: 🔍

Entryinfo

Created: 10/17/2022 13:16
Updated: 11/09/2022 15:55
Changes: 10/17/2022 13:16 (41), 11/09/2022 15:49 (2), 11/09/2022 15:55 (21)
Complete: 🔍
Cache ID: 3:C5E:103

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