Vulnerability in Busybox
CVE-2021-42375
An incorrect handling of a special element in Busybox's ash applet leads to denial of service when processing a crafted shell command, due to the shell mistaking specific characters for reserved characters. This may be used for DoS under r…
EPSS: 0.004 (30.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- reefs@jfrog.com (Third Party Advisory)
- reefs@jfrog.com (vendor-advisory)
- reefs@jfrog.com (vendor-advisory)
- reefs@jfrog.com (Third Party Advisory)
- reefs@jfrog.com
Frequently asked questions
- What is CVE-2021-42375?
- CVE-2021-42375 is a medium-severity vulnerability in Busybox, classified under CWE-159. CVSS score: 5.5/10. Published 2021-11-15.
- How severe is CVE-2021-42375?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2021-42375 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.