Vulnerability · Published Oct 9, 2024 · Assigned by mitre
CVE-2024-46304
High 7.5
In plain English
A high-severity buffer overflow in the libcoap3 package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.6%top 53.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A NULL pointer dereference in libcoap v4.3.5-rc2 and below allows a remote attacker to cause a denial of service via the coap_handle_request_put_block function in src/coap_block.c.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libcoap3 | no fix listed | DEBIAN-CVE-2024-46304 |
| Debian:13 | libcoap3 | no fix listed | DEBIAN-CVE-2024-46304 |
| Debian:14 | libcoap3 | 4.3.5-1 | DEBIAN-CVE-2024-46304 |
| Ubuntu:22.04:LTS | libcoap2 | no fix listed | UBUNTU-CVE-2024-46304 |
| Ubuntu:22.04:LTS | libcoap3 | no fix listed | UBUNTU-CVE-2024-46304 |
| Ubuntu:24.04:LTS | libcoap3 | no fix listed | UBUNTU-CVE-2024-46304 |
| Ubuntu:25.10 | libcoap3 | no fix listed | UBUNTU-CVE-2024-46304 |
| Ubuntu:26.04:LTS | libcoap3 | no fix listed | UBUNTU-CVE-2024-46304 |
| Ubuntu:26.10 | libcoap3 | no fix listed | UBUNTU-CVE-2024-46304 |
Affected products (as reported)
Weakness: CWE-120 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H