Multiple vulnerabilities in Linux kernel Marvell Wi-Fi chip driver



Published: 2019-09-30
Risk Low
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2019-14814
CVE-2019-14815
CVE-2019-14816
CWE-ID CWE-122
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Heap-based buffer overflow

EUVDB-ID: #VU21446

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-14814

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the mwifiex_update_vs_ie() function in the Marvell Wi-Fi chip driver in Linux kernel. A local user can run a specially crafted application to trigger a heap-based buffer overflow and execute arbitrary code on the system with elevated privileges.


Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Linux kernel: 4.4.0 - 5.2.16

External links

http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.17
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.194
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.194
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.75
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.146
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Heap-based buffer overflow

EUVDB-ID: #VU21445

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-14815

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the mwifiex_set_uap_rates() function in the Marvell Wi-Fi chip driver in Linux kernel. A local user can run a specially crafted application to trigger a heap-based buffer overflow and execute arbitrary code on the system with elevated privileges.


Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Linux kernel: 4.4.0 - 5.2.16

External links

http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.17
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.194
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.194
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.75
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.146
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Heap-based buffer overflow

EUVDB-ID: #VU21444

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-14816

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error within the mwifiex_set_wmm_params() function in the Marvell Wi-Fi chip driver in Linux kernel. A local user can run a specially crafted application to trigger a heap-based buffer overflow and execute arbitrary code on the system with elevated privileges.


Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Linux kernel: 4.4.0 - 5.2.16

External links

http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.17
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.194
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.194
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.75
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.146
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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