Vulnerability · Published Nov 27, 2023 · Assigned by mitre
CVE-2023-42365
Medium 5.5
In plain English
A medium-severity security flaw in the busybox package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.4%top 66.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
A use-after-free vulnerability was discovered in BusyBox v.1.36.1 via a crafted awk pattern in the awk.c copyvar function.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | busybox | 1.36.1-r29 | ALPINE-CVE-2023-42365 |
| Alpine:v3.21 | busybox | 1.36.1-r30 | ALPINE-CVE-2023-42365 |
| Alpine:v3.22 | busybox | 1.36.1-r30 | ALPINE-CVE-2023-42365 |
| Alpine:v3.23 | busybox | 1.36.1-r30 | ALPINE-CVE-2023-42365 |
| Alpine:v3.24 | busybox | 1.36.1-r30 | ALPINE-CVE-2023-42365 |
| Debian:12 | busybox | 1:1.35.0-4+deb12u1 | DEBIAN-CVE-2023-42365 |
| Debian:13 | busybox | 1:1.37.0-1 | DEBIAN-CVE-2023-42365 |
| Debian:14 | busybox | 1:1.37.0-1 | DEBIAN-CVE-2023-42365 |
| 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-2023-42365 |