crítica
CVE-2026-29013
libcoap contains out-of-bounds read vulnerabilities in OSCORE Appendix ...
En la Trivy database desde, como mínimo, el 24 oct 2026, 07:11 UTCNo consta cuándo entró antes de ese build.
Severidad por fuente
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
La etiqueta propia de Trivy es CRITICAL. Crítica según NVD.
Descripción
libcoap contains out-of-bounds read vulnerabilities in OSCORE Appendix B.2 CBOR unwrap handling where get_byte_inc() in src/oscore/oscore_cbor.c relies solely on assert() for bounds checking, which is removed in release builds compiled with NDEBUG. Attackers can send crafted CoAP requests with malformed OSCORE options or responses during OSCORE negotiation to trigger out-of-bounds reads during CBOR parsing and potentially cause out-of-bounds reads through integer wraparound in allocation size computation.
Paquetes afectados y versiones corregidas
| Fuente | Paquete | Corregido en |
|---|---|---|
| debian 12 | libcoap3 | sin corrección indicada |
| debian 13 | libcoap3 | 4.3.4-1.1+deb13u3 |
| debian 14 | libcoap3 | 4.3.5-3 |
| echo | libcoap3 | 4.3.4-1.1+deb13u3 |
| rapidfort alpine 3.20 | libcoap | 4.3.5-r0 |
| rapidfort alpine 3.21 | libcoap | 4.3.5a-r0 |
| rapidfort alpine 3.22 | libcoap | 4.3.5a-r0 |
| rapidfort alpine 3.23 | libcoap | 4.3.5a-r0 |
| rapidfort alpine 3.24 | libcoap | 4.3.5a-r0 |
| rapidfort debian 12 | libcoap3 | 0:4.3.4-1.1+deb13u3, 0:4.3.5-3 |
| rapidfort debian 13 | libcoap3 | 0:4.3.4-1.1+deb13u3, 0:4.3.5-3 |
| rapidfort fedora 43 | libcoap, libcoap-devel, libcoap-doc y 1 más | 4.3.5b-1.fc43 |
Mostrar las 15 entradas de 12 fuentes
| Fuente | Paquete | Corregido en |
|---|---|---|
| debian 12 | libcoap3 | sin corrección indicada |
| debian 13 | libcoap3 | 4.3.4-1.1+deb13u3 |
| debian 14 | libcoap3 | 4.3.5-3 |
| echo | libcoap3 | 4.3.4-1.1+deb13u3 |
| rapidfort alpine 3.20 | libcoap | 4.3.5-r0 |
| rapidfort alpine 3.21 | libcoap | 4.3.5a-r0 |
| rapidfort alpine 3.22 | libcoap | 4.3.5a-r0 |
| rapidfort alpine 3.23 | libcoap | 4.3.5a-r0 |
| rapidfort alpine 3.24 | libcoap | 4.3.5a-r0 |
| rapidfort debian 12 | libcoap3 | 0:4.3.4-1.1+deb13u3, 0:4.3.5-3 |
| rapidfort debian 13 | libcoap3 | 0:4.3.4-1.1+deb13u3, 0:4.3.5-3 |
| rapidfort fedora 43 | libcoap | 4.3.5b-1.fc43 |
| rapidfort fedora 43 | libcoap-devel | 4.3.5b-1.fc43 |
| rapidfort fedora 43 | libcoap-doc | 4.3.5b-1.fc43 |
| rapidfort fedora 43 | libcoap-utils | 4.3.5b-1.fc43 |