Vulnerability in Amazon Web Services Freertos
CVE-2018-16598
An issue was discovered in Amazon Web Services (AWS) FreeRTOS through 1.3.1, FreeRTOS up to V10.0.1 (with FreeRTOS+TCP), and WITTENSTEIN WHIS Connect middleware TCP/IP component. In xProcessReceivedUDPPacket and prvParseDNSReply, any received DNS response is accepted, without confirming it matches a sent DNS request.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.015 (73.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/aws/amazon-freertos/blob/v1.3.2/CHANGELOG.md (Third Party Advisory, Release Notes)
- blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-details/ (Patch, Third Party Advisory)
- blog.zimperium.com/freertos-tcpip-stack-vulnerabilities-put-wide-range-devices-… (Third Party Advisory)
Frequently asked questions
- What is CVE-2018-16598?
- CVE-2018-16598 is a medium-severity vulnerability in Amazon Web Services Freertos, classified under Unintended Proxy or Intermediary (Confused Deputy). CVSS score: 5.9/10. Published 2018-12-06.
- How severe is CVE-2018-16598?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2018-16598 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.