Buffer overflow in Denx U-Boot
CVE-2018-18440
DENX U-Boot through 2018.09-rc1 has a locally exploitable buffer overflow via a crafted kernel image because filesystem loading is mishandled.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (45.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Denx U-Boot — versions 2018.09
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.openwall.com/lists/oss-security/2018/11/02/2 (mailing-list, Exploit, Mailing List, Third Party Advisory, Mitigation)
- cert-portal.siemens.com/productcert/pdf/ssa-618620.pdf
Frequently asked questions
- What is CVE-2018-18440?
- CVE-2018-18440 is a high-severity vulnerability in Denx U-Boot, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.8/10. Published 2018-11-20.
- How severe is CVE-2018-18440?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2018-18440 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.