Vulnerability · Published Nov 27, 2023 · Assigned by mitre
CVE-2023-42363
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 37% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.4%top 63.1% 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 xasprintf function in xfuncs_printf.c:344 in BusyBox v.1.36.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | busybox | 1.36.1-r27 | ALPINE-CVE-2023-42363 |
| Alpine:v3.21 | busybox | 1.36.1-r27 | ALPINE-CVE-2023-42363 |
| Alpine:v3.22 | busybox | 1.36.1-r27 | ALPINE-CVE-2023-42363 |
| Alpine:v3.23 | busybox | 1.36.1-r27 | ALPINE-CVE-2023-42363 |
| Alpine:v3.24 | busybox | 1.36.1-r27 | ALPINE-CVE-2023-42363 |
| Debian:12 | busybox | 1:1.35.0-4+deb12u1 | DEBIAN-CVE-2023-42363 |
| Debian:13 | busybox | 1:1.37.0-1 | DEBIAN-CVE-2023-42363 |
| Debian:14 | busybox | 1:1.37.0-1 | DEBIAN-CVE-2023-42363 |
| 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-2023-42363 |