CVE-2020-35471
HIGHCVSS 7.5/10EPSS 2.36%
Last modified
CVE-2020-35471 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Envoy before 1.16.1 mishandles dropped and truncated datagrams, as demonstrated by a segmentation fault for a UDP packet size larger than 1500.. EPSS estimates a 2.36% chance of exploitation in the next 30 days.
Description
Envoy before 1.16.1 mishandles dropped and truncated datagrams, as demonstrated by a segmentation fault for a UDP packet size larger than 1500.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Envoyproxy | Envoy | < 1.16.1 |
References
- https://github.com/envoyproxy/envoy/compare/v1.16.0...v1.16.1Patch, Third Party Advisory
- https://github.com/envoyproxy/envoy/issues/14113Exploit, Third Party Advisory
- https://github.com/envoyproxy/envoy/pull/14122Patch, Third Party Advisory
- https://github.com/envoyproxy/envoy/compare/v1.16.0...v1.16.1Patch, Third Party Advisory
- https://github.com/envoyproxy/envoy/issues/14113Exploit, Third Party Advisory
- https://github.com/envoyproxy/envoy/pull/14122Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-35471?
Envoy before 1.16.1 mishandles dropped and truncated datagrams, as demonstrated by a segmentation fault for a UDP packet size larger than 1500.
How severe is CVE-2020-35471?
CVE-2020-35471 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.36% probability of exploitation in the next 30 days.
How do I fix CVE-2020-35471?
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-2020-35471?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST