Use After Free in Busybox
CVE-2022-30065
A use-after-free in Busybox 1.35-x's awk applet leads to denial of service and possibly code execution when processing a crafted awk pattern in the copyvar function.
Vulnerability class: Use-After-Free
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (68.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.013 · change: +0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugs.busybox.net/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- cert-portal.siemens.com/productcert/pdf/ssa-333517.pdf (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-30065?
- CVE-2022-30065 is a high-severity vulnerability in Busybox, classified under Use After Free. CVSS score: 7.8/10. Published 2022-05-18.
- How severe is CVE-2022-30065?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2022-30065 known to be exploited?
- 11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.