National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-18801 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 9.8 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2019:4222 Third Party Advisory
https://blog.envoyproxy.io Product
https://github.com/envoyproxy/envoy/commits/master Patch
https://github.com/envoyproxy/envoy/security/advisories/GHSA-gxvv-x4p2-rppp Exploit Third Party Advisory
https://groups.google.com/forum/#!forum/envoy-users Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
1.12.1


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-18801
NVD Published Date:
12/13/2019
NVD Last Modified:
12/18/2019