Ubuntu update for NTFS-3G

1) Heap-based buffer overflow

EUVDB-ID: #VU18324

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-9755

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error when executing the NTFS-3G driver with an overly long relative mount point path. A local usre can create directory structure with specially crafted names, trigger heap-based buffer overflow and execute arbitrary code on the target system with elevated privileges.

Mitigation

Update the affected packages.

Ubuntu 18.10

ntfs-3g - 1:2017.3.23-2ubuntu0.18.10.2

Ubuntu 18.04 LTS

ntfs-3g - 1:2017.3.23-2ubuntu0.18.04.2

Ubuntu 16.04 LTS

ntfs-3g - 1:2015.3.14AR.1-1ubuntu0.3

Vulnerable software versions

ntfs-3g (Ubuntu package): 1:2015.3.14AR.1-1ubuntu0.1 - 1:2017.3.23-2ubuntu0.18.10.1

CPE2.3

• cpe:2.3:a:canonical:ntfs-3g_ubuntu_package:1:2015.3.14AR.1-1ubuntu0.1:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:ntfs-3g_ubuntu_package:1:2015.3.14AR.1-1ubuntu0.2:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:ntfs-3g_ubuntu_package:1:2017.3.23-2ubuntu0.18.04.1:*:*:*:*:ubuntu:*:*

External links

https://usn.ubuntu.com/3914-2/

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.