Vulnerability identifier: #VU19550

Vulnerability risk: Medium

CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: N/A

CWE-ID: CWE-120

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
DTLS server
Universal components / Libraries / Libraries used by multiple products

Vendor: Eclipse

Description

The vulnerability allows a remote attacker to crash the target server.

The vulnerability exists in the "dtls_create_cookie" function due to a boundary error when the server incorrectly handles incoming network. A remote attacker can send a specially crafted request to the affected system, trigger buffer overflow and crash the target server.

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

Vulnerable software versions

DTLS server: All versions

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External links
http://bugs.eclipse.org/bugs/show_bug.cgi?id=544819
http://github.com/eclipse/tinydtls/commit/68a1cdaff9e329e13ea59529f1eb61b05632c297

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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.