CVE-2024-31031: An issue in `coap_pdu.c` in libcoap 4.3.4 allows attackers to cause undefined behavior via a sequence of messages leading to unsigned integer overflow.

PriorityP335high7.5CVSS 3.1

AVNACLPRNUINSUCNINAH

EPSS

0.87%

54.6th percentile

An issue in `coap_pdu.c` in libcoap 4.3.4 allows attackers to cause undefined behavior via a sequence of messages leading to unsigned integer overflow.

Affected

5 ranges

Vendor	Product	Version range	Fixed in
debian	libcoap2	< libcoap3 4.3.5-1 (forky)	libcoap3 4.3.5-1 (forky)
debian	libcoap3	< libcoap3 4.3.5-1 (forky)	libcoap3 4.3.5-1 (forky)
fedoraproject	fedora	—	—
fedoraproject	fedora	—	—
libcoap	libcoap	—	—

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

osv7.5HIGH

vendor_debian7.5LOW

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