kritisch
CVE-2026-29013
libcoap contains out-of-bounds read vulnerabilities in OSCORE Appendix ...
In der Trivy Database seit spätestens 24. Okt. 2026, 07:11 UTCWann der Eintrag vor diesem Build hinzukam, ist nicht erfasst.
Einstufung nach Quelle
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD.
Beschreibung
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.
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| debian 12 | libcoap3 | kein Fix angegeben |
| 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 und 1 weitere | 4.3.5b-1.fc43 |
Alle 15 Einträge aus 12 Quellen zeigen
| Quelle | Paket | Behoben in |
|---|---|---|
| debian 12 | libcoap3 | kein Fix angegeben |
| 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 |