PT-2024-23732 · Libcoap+1 · Libcoap+1

Dqp10515 · Published 2024-04-17 · Updated 2025-09-03 · CVE-2024-31031

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions libcoap version 4.3.4

Description An issue in coap pdu.c allows attackers to cause undefined behavior via a sequence of messages leading to unsigned integer overflow.

Recommendations For libcoap version 4.3.4, consider restricting access to the coap pdu.c module to minimize the risk of exploitation until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2024-31031

Affected Products

Debian

Libcoap

References · 18

• 🔥 https://github.com/obgm/libcoap/issues/1351 · Exploit
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/TUL7QDYFGEIJVO2ZSG4O5HEAWR6PFC52 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TUL7QDYFGEIJVO2ZSG4O5HEAWR6PFC52 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-31031 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2024-31031 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-31031 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-31031 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-31031 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPENEJBV3KSASIYKNZAKXDAH7Q66KPYG · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-31031 · Security Note
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/LPENEJBV3KSASIYKNZAKXDAH7Q66KPYG · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-31031 · Vendor Advisory
• https://twitter.com/CVEnew/status/1781102417008120314 · Twitter Post
• https://reddit.com/r/debian/comments/1n79g7f/debian_131_and_1212_20250906 · Reddit Post
• https://t.me/cvenotify/77190 · Telegram Post