Integer overflow in Libcoap
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.
Vulnerability class: Integer Overflow
EPSS: 0.009 (55.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Libcoap — versions 4.3.4
- Fedoraproject Fedora — versions 39, 40
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Issue Tracking)
- cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory)
- cve@mitre.org (vendor-advisory, Mailing List, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-31031?
- CVE-2024-31031 is a high-severity vulnerability in Libcoap, classified under Integer Overflow or Wraparound. CVSS score: 7.5/10. Published 2024-04-17.
- How severe is CVE-2024-31031?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2024-31031 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.