Use After Free in Busybox
CVE-2021-42380
A use-after-free in Busybox's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the clrvar function
Vulnerability class: Use-After-Free
EPSS: 0.005 (66.0th percentile) — read the EPSS interpretation.
Affected products
- Busybox — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2021-42380?
- CVE-2021-42380 is a vulnerability in Busybox, classified under Use After Free. Published 2021-11-15.
- Is CVE-2021-42380 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.