UBUNTU-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-2025-65495

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...

UBUNTU-CVE-2025-65498

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...

UBUNTU-CVE-2025-65499

Array index 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 DTLS handshake that triggers SSLgetexdataX509STORECTXidx to return -1...

UBUNTU-CVE-2025-65500

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...

UBUNTU-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-2025-65499

Array index 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 DTLS handshake that triggers SSLgetexdataX509STORECTXidx to return -1...

libcoap 安全漏洞

libcoap is a C implementation of a lightweight application protocol open-sourced by obgm. A security vulnerability exists in libcoap version 4.3.5, which stems from a misindexed array of the tlsverifycallback function in src/coapopenssl.c, and could lead to a denial of service attack...

libcoap 安全漏洞

libcoap is a C implementation of a lightweight application protocol open-sourced by obgm. A security vulnerability exists in libcoap version 4.3.5, which stems from a null pointer dereference in the coapdtlsgeneratecookie function in src/coapopenssl.c, which could lead to a denial of service atta...

CVE-2025-65499

The CVE-2025-65499 issue affects libcoap 4.3.5, specifically the tls_verify_call_back() path in src/coap_openssl.c. A misindexed array causes SSL_get_ex_data_X509_STORE_CTX_idx() to return -1, enabling a remote attacker to trigger a denial of service during a crafted DTLS handshake. Public adviso...

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...

libcoap 安全漏洞

libcoap is a C implementation of a lightweight application protocol open-sourced by obgm. A security vulnerability exists in libcoap version 4.3.5, which stems from a null pointer dereference in the coapdtlsinfocallback function and could lead to a denial of service attack...

CVE-2025-65501

CVE-2025-65501 affects libcoap 4.3.5. The issue is a null pointer dereference in coap_dtls_info_callback() during a DTLS handshake when SSL_get_app_data() returns NULL, enabling potential denial of service. Fedora advisories indicate that updates to 4.3.5a are released for Fedora 42/43; Nessus/Op...

Linux Distros Unpatched Vulnerability : CVE-2025-65498

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Linux Distros Unpatched Vulnerability : CVE-2025-65500

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Linux Distros Unpatched Vulnerability : CVE-2025-65501

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

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...

CVE-2025-65495

CVE-2025-65495 affects libcoap 4.3.5. The issue is a signedness error in tls_verify_call_back() inside src/coap_openssl.c that can allow a remote attacker to trigger a denial of service by sending a crafted TLS certificate, causing i2d_X509() to return -1 and be misused as a malloc() size. Public...

libcoap 安全漏洞

libcoap is a C implementation of a lightweight application protocol open-sourced by obgm. A security vulnerability exists in libcoap version 4.3.5, which originates from a null pointer dereference in the getsanorcnfromcert function in src/coapopenssl.c, which could lead to a denial of service...

Linux Distros Unpatched Vulnerability : CVE-2025-65496

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...