HIGH
Netatalk before 3.1.12 is vulnerable to an out of bounds write in dsi_opensess.c. This is due to lack of bounds checking on attacker controlled data. A remote unauthenticated attacker can leverage this vulnerability to achieve arbitrary code execution.
http://netatalk.sourceforge.net/3.1/ReleaseNotes3.1.12.html
http://packetstormsecurity.com/files/152440/QNAP-Netatalk-Authentication-Bypass.html
http://www.securityfocus.com/bid/106301
https://attachments.samba.org/attachment.cgi?id=14735
https://github.com/tenable/poc/tree/master/netatalk/cve_2018_1160/
https://www.debian.org/security/2018/dsa-4356
https://www.exploit-db.com/exploits/46034/
https://www.exploit-db.com/exploits/46048/
https://www.exploit-db.com/exploits/46675/
https://www.synology.com/security/advisory/Synology_SA_18_62
Source: MITRE
Published: 2018-12-20
Updated: 2019-04-25
Type: CWE-787
Base Score: 10
Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C
Impact Score: 10
Exploitability Score: 10
Severity: HIGH
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL