Description

Integer signedness error in tls_verify_call_back() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted TLS certificate that causes i2d_X509() to return -1 and be misused as a malloc() size parameter.

INFO

Published Date :

2025-11-24T00:00:00.000Z

Last Modified :

2025-11-24T14:41:15.867Z

Source :

mitre
AFFECTED PRODUCTS

The following products are affected by CVE-2025-65495 vulnerability.

Vendors Products
Libcoap
  • Libcoap
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-65495.

URL Resource
https://github.com/obgm/libcoap/issues/1744 cve-icon cve-icon
https://github.com/obgm/libcoap/pull/1750 cve-icon cve-icon
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