9 matches found
CVE-2025-65495
Integer signedness error in tlsverifycallback in src/coapopenssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted TLS certificate that causes i2dX509 to return -1 and be misused as a malloc size parameter. Mitigation Mitigation for this issue is either no...
CVE-2025-65501
Null pointer dereference in coapdtlsinfocallback in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a DTLS handshake where SSLgetappdata returns NULL...
DEBIAN-CVE-2025-65493
NULL pointer dereference in src/coapopenssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS/TLS connection that triggers BIOgetdata to return NULL...
UBUNTU-CVE-2025-65496
NULL pointer dereference in coapdtlsgeneratecookie in src/coapopenssl.c in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a crafted DTLS handshake that triggers SSLgetSSLCTX to return NULL...
CVE-2025-65497
A NULL pointer dereference vulnerability exists in libcoap 4.3.5 within the coap_dtls_generate_cookie() function in src/coap_openssl.c. The flaw is caused by improper handling of return values from OpenSSL functions during DTLS (Datagram Transport Layer Security) operations. A remote attacker can...
CVE-2025-65501
Null pointer dereference in coapdtlsinfocallback in OISM libcoap 4.3.5 allows remote attackers to cause a denial of service via a DTLS handshake where SSLgetappdata returns NULL...
CVE-2025-50518
A use-after-free vulnerability exists in the coapdeletepdulkd function within coappdu.c of the libcoap library. This issue occurs due to improper handling of memory after the freeing of a PDU object, leading to potential memory corruption or the possibility of executing arbitrary code. NOTE: this...
