Heap-based buffer overflow in ntfs-3g (Alpine package)



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-9755
CWE-ID CWE-122
Exploitation vector Local
Public exploit N/A
Vulnerable software
 ntfs-3g (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one low risk vulnerability.

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

Install update from vendor's website.

Vulnerable software versions

ntfs-3g (Alpine package): 2017.3.23-r1

CPE2.3 External links

https://git.alpinelinux.org/aports/commit/?id=29325147b2d9c9451eb39b96e69b8e9e03e02673
https://git.alpinelinux.org/aports/commit/?id=67b4ef65d4c4d93a4e554aa8a76f17a3fcabce3e
https://git.alpinelinux.org/aports/commit/?id=7f77ff08b1808c2c96eabfce32bee810fa1b374c
https://git.alpinelinux.org/aports/commit/?id=95aea5ceff62cd4a94abdb087564bfe1dbcc468c
https://git.alpinelinux.org/aports/commit/?id=c9296b6ed26720cdc2083dc0106f4ee40430fc11


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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