CVE-2021-29258
HIGH severity · CVSS 7.5 · CWE-617
7.5CVSS HIGH
Summary
An issue was discovered in Envoy 1.14.0. There is a remotely exploitable crash for HTTP2 Metadata, because an empty METADATA map triggers a Reachable Assertion.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)2%
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Additional information
- NVD record
- https://blog.envoyproxy.ioAdvisory
- https://github.com/envoyproxy/envoy-setec/pull/230
- https://github.com/envoyproxy/envoy/releases/tag/v1.14.0Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-xw4q-6pj2-5gfgAdvisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-rqvq-hxw5-776jAdvisory