Vulnerability · Published May 20, 2021 · Assigned by mitre
CVE-2021-29258
High 7.5
In plain English
A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 78% of all known vulnerabilities).
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.8%top 21.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
References
- https://blog.envoyproxy.io x_refsource_MISC
- https://github.com/envoyproxy/envoy-setec/pull/230 x_refsource_MISC
- https://github.com/envoyproxy/envoy/releases/tag/v1.14.0 x_refsource_MISC
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-xw4q-6pj2-5gfg x_refsource_MISC