CVE-2025-65497

NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of servi...

Original description

The description as published by the source.

NULL pointer dereference in coap_dtls_generate_cookie() in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSL_get_SSL_CTX() to return NULL.

Source: OSV.dev (Open Source Vulnerabilities) NVD OSV

Fix status by distribution

Fixed packages published by each distribution for this CVE

Debian DEBIAN-CVE-2025-65497 libcoap2
Ubuntu UBUNTU-CVE-2025-65497 libcoap

References

advisory github.com
advisory nvd.nist.gov
patch github.com
report github.com