Vulnerability · Published Nov 27, 2023 · Assigned by mitre
CVE-2023-42364
Medium 5.5
In plain English
A medium-severity use-after-free in the busybox package (Alpine). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 38% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.4%top 62.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
A use-after-free vulnerability in BusyBox v.1.36.1 allows attackers to cause a denial of service via a crafted awk pattern in the awk.c evaluate function.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | busybox | 1.36.1-r29 | ALPINE-CVE-2023-42364 |
| Alpine:v3.21 | busybox | 1.36.1-r30 | ALPINE-CVE-2023-42364 |
| Alpine:v3.22 | busybox | 1.36.1-r30 | ALPINE-CVE-2023-42364 |
| Alpine:v3.23 | busybox | 1.36.1-r30 | ALPINE-CVE-2023-42364 |
| Alpine:v3.24 | busybox | 1.36.1-r30 | ALPINE-CVE-2023-42364 |
| Debian:12 | busybox | 1:1.35.0-4+deb12u1 | DEBIAN-CVE-2023-42364 |
| Debian:13 | busybox | 1:1.37.0-1 | DEBIAN-CVE-2023-42364 |
| Debian:14 | busybox | 1:1.37.0-1 | DEBIAN-CVE-2023-42364 |
| Ubuntu:22.04:LTS | busybox | 1:1.30.1-7ubuntu3.1 | USN-6961-1 |
| Ubuntu:24.04:LTS | busybox | 1:1.36.1-6ubuntu3.1 | USN-6961-1 |
| Ubuntu:24.04:LTS | busybox | 1:1.36.1-6ubuntu3.1 | UBUNTU-CVE-2023-42364 |
Affected products (as reported)
Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H