#VU16646 Out-of-bounds write in Netatalk - CVE-2018-1160

Vulnerability identifier: #VU16646

Vulnerability risk: High

CVSSv4.0: 8.9 [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:P/U:Amber]

CVE-ID: CVE-2018-1160

CWE-ID: CWE-787

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
Netatalk
Server applications / File servers (FTP/HTTP)

Vendor: Netatalk

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error in dsi_opensess.c. A remote attacker can trigger an out-of-bounds write and crash the affected application or execute arbitrary code on the target system.

Mitigation
Update to version 3.1.12.

Vulnerable software versions

Netatalk: 3.0.0 - 3.1.11

---

External links
https://netatalk.sourceforge.net/3.1/ReleaseNotes3.1.12.html
https://attachments.samba.org/attachment.cgi?id=14735
https://github.com/tenable/poc/tree/master/netatalk/cve_2018_1160/
https://www.tenable.com/security/research/tra-2018-48

---

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. However, proof of concept for this vulnerability is available.