PT-2019-12640 · Libnyoci · Libnyoci

Zztytuo · Published 2019-05-15 · Updated 2019-05-16 · CVE-2019-12101

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions LibNyoci version 0.07.00rc1

Description The issue is related to the coap decode option function in coap.c, which mishandles certain packets containing Uri-Path: (null). This mishandling allows remote attackers to cause a denial of service, resulting in a segmentation fault.

Recommendations For LibNyoci version 0.07.00rc1, consider disabling the coap decode option function as a temporary workaround until a patch is available. Restrict access to the coap.c module to minimize the risk of exploitation. Avoid using packets with Uri-Path: (null) in the affected API endpoint until the issue is resolved.

Exploit

Fix

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2019-12101

Affected Products

Libnyoci

References · 3

• 🔥 https://github.com/darconeous/libnyoci/issues/21 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-12101 · Security Note
• https://osv.dev/vulnerability/CVE-2019-12101 · Vendor Advisory