CVE-2018-18439
CRITICALCVSS 9.8/10EPSS 2.04%
Last modified
CVE-2018-18439 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. DENX U-Boot through 2018.09-rc1 has a remotely exploitable buffer overflow via a malicious TFTP server because TFTP traffic is mishandled. Also, local exploitation can occur via a crafted kernel image.. EPSS estimates a 2.04% chance of exploitation in the next 30 days.
Description
DENX U-Boot through 2018.09-rc1 has a remotely exploitable buffer overflow via a malicious TFTP server because TFTP traffic is mishandled. Also, local exploitation can occur via a crafted kernel image.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions | Update |
|---|---|---|---|
| Denx | U-Boot | < 2018.09 | — |
| Denx | U-Boot | 2018.09 | Rc1 |
References
- http://www.openwall.com/lists/oss-security/2018/11/02/2Exploit, Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2018/11/02/2Exploit, Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-18439?
DENX U-Boot through 2018.09-rc1 has a remotely exploitable buffer overflow via a malicious TFTP server because TFTP traffic is mishandled. Also, local exploitation can occur via a crafted kernel image.
How severe is CVE-2018-18439?
CVE-2018-18439 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.04% probability of exploitation in the next 30 days.
How do I fix CVE-2018-18439?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2018-18439?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST