Debian/libcoap3: high 7.5
NULL pointer dereference in src/coap_openssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS/TLS connection that triggers BIO_get_data() to return NULL.
Action: Upgrade libcoap3 to 4.3.5-2 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 4.3.5-2 | - |
Fixed versions
| 4.3.5-2 |
Sources
- osv: DEBIAN-CVE-2025-65493#Debian:14/libcoap3
- https://security-tracker.debian.org/tracker/CVE-2025-65493
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