Vulnerability · Published Jul 3, 2024 · Assigned by mitre
CVE-2024-39844
Critical 9.8
In plain English
A critical-severity code injection in the znc package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.9% (higher than 90% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)3.9%top 9.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
In ZNC before 1.9.1, remote code execution can occur in modtcl via a KICK.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | znc | 1.9.1-r0 | ALPINE-CVE-2024-39844 |
| Alpine:v3.21 | znc | 1.9.1-r0 | ALPINE-CVE-2024-39844 |
| Alpine:v3.22 | znc | 1.9.1-r0 | ALPINE-CVE-2024-39844 |
| Alpine:v3.23 | znc | 1.9.1-r0 | ALPINE-CVE-2024-39844 |
| Alpine:v3.24 | znc | 1.9.1-r0 | ALPINE-CVE-2024-39844 |
| Debian:12 | znc | 1.8.2-3.1+deb12u1 | DSA-5725-1 |
| Debian:12 | znc | 1.8.2-3.1+deb12u1 | DEBIAN-CVE-2024-39844 |
| Debian:13 | znc | 1.9.1-1 | DEBIAN-CVE-2024-39844 |
| Debian:14 | znc | 1.9.1-1 | DEBIAN-CVE-2024-39844 |
| Ubuntu:22.04:LTS | znc | 1.8.2-2ubuntu0.1 | UBUNTU-CVE-2024-39844 |
| Ubuntu:22.04:LTS | znc | 1.8.2-2ubuntu0.1 | USN-6990-1 |
Affected products (as reported)
Weakness: CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H