An issue was discovered in Envoy 1.12.0. Upon receipt of a malformed HTTP request without a Host header, it sends an internally generated "Invalid request" response. This internally generated response is dispatched through the configured encoder filter chain before being sent to the client. An encoder filter that invokes route manager APIs that access a request's Host header causes a NULL pointer dereference, resulting in abnormal termination of the Envoy process.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-12-13T12:22:33

Updated: 2024-08-05T02:02:39.849Z

Reserved: 2019-11-08T00:00:00

Link: CVE-2019-18838

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-12-13T13:15:11.443

Modified: 2023-11-07T03:07:17.977

Link: CVE-2019-18838

cve-icon Redhat

Severity : Important

Publid Date: 2019-12-10T18:00:00Z

Links: CVE-2019-18838 - Bugzilla