Vulnerability identifier: #VU14506

Vulnerability risk: Low

CVSSv3.1: 8.1 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2018-12930

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists in the ntfs_end_buffer_async_read() function in the ntfs.kofilesystem driver due to stack-based out-of-bounds write. A local attacker can mount a specially crafted NTFS filesystem that submits malicious input, trigger memory corruption and cause the affected software to terminate abnormally or execute arbitrary code with elevated privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any solutions addressing the vulnerability.

Vulnerable software versions

Linux kernel: 4.15.0 - 4.15.16

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External links
http://bugs.launchpad.net/ubuntu/+source/linux/+bug/1763403

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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.