Out-of-bounds write in Linux kernel



| Updated: 2020-06-01
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-14897
CWE-ID CWE-787
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Out-of-bounds write

EUVDB-ID: #VU28408

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-14897

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

A stack-based buffer overflow was found in the Linux kernel, version kernel-2.6.32, in Marvell WiFi chip driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to another STA.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: 4.4 - 5.4.42

CPE2.3 External links

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.212
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.212
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.169
https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.100
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.16


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



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