An issue was discovered in Envoy 1.12.0. An untrusted remote client may send HTTP/2 requests that write to the heap outside of the request buffers when the upstream is HTTP/1. This may be used to corrupt nearby heap contents (leading to a query-of-death scenario) or may be used to bypass Envoy's access control mechanisms such as path based routing. An attacker can also modify requests from other users that happen to be proximal temporally and spatially.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2019-12-13T12:20:00

Updated: 2024-08-05T02:02:39.674Z

Reserved: 2019-11-07T00:00:00

Link: CVE-2019-18801

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2019-12-13T13:15:11.303

Modified: 2024-11-21T04:33:35.730

Link: CVE-2019-18801

cve-icon Redhat

Severity : Critical

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

Links: CVE-2019-18801 - Bugzilla