Heap-based buffer overflow in DiskStation DS418 Play - CVE-2021-31439

Vulnerability identifier: #VU52802

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-31439

CWE-ID: CWE-122

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the processing of DSI structures in Netatalk. A remote attacker on the local network can trigger heap-based buffer overflow and execute arbitrary code on the target system.

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

DiskStation DS418 Play
QuTS hero
Gentoo Linux
Debian Linux
QuTScloud
SUSE Linux Enterprise Desktop
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Software Development Kit
SUSE Linux Enterprise Workstation Extension
Ubuntu
Netatalk
QNAP QTS
netatalk (Ubuntu package)
libatalk12
libatalk12-debuginfo
netatalk
netatalk-debuginfo
netatalk-debugsource
netatalk-devel
netatalk (Debian package)
net-fs/netatalk

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Netatalk - update to 3.1.13
QNAP QTS - update to 4.5.4.2012 20220419
netatalk (Ubuntu package) - addressed in versions Ubuntu Pro, 3.1.12~ds-4ubuntu0.20.04.1, 3.1.12~ds-9ubuntu0.22.04.1, 3.1.13~ds-2ubuntu0.22.10.1
libatalk12 - update to 3.1.0-3.8.1
libatalk12-debuginfo - update to 3.1.0-3.8.1
netatalk - update to 3.1.0-3.8.1
netatalk-debuginfo - update to 3.1.0-3.8.1
netatalk-debugsource - update to 3.1.0-3.8.1
netatalk-devel - update to 3.1.0-3.8.1
netatalk (Debian package) - update to 3.1.12~ds-8+deb11u1
net-fs/netatalk - update to 3.1.18

• https://www.zerodayinitiative.com/advisories/ZDI-21-492/

• Remote code execution in Synology DiskStation DS418 play
• Multiple vulnerabilities in QNAP QTS Netatalk
• Multiple vulnerabilities in QuTS hero Netatalk
• Multiple vulnerabilities in QNAP QuTScloud Netatalk
• Multiple vulnerabilities in Netatalk
• SUSE update for netatalk
• Ubuntu update for netatalk
• Debian update for netatalk
• Gentoo update for Netatalk