National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-15226 Detail

Current Description

Upon receiving each incoming request header data, Envoy will iterate over existing request headers to verify that the total size of the headers stays below a maximum limit. The implementation in versions 1.10.0 through 1.11.1 for HTTP/1.x traffic and all versions of Envoy for HTTP/2 traffic had O(n^2) performance characteristics. A remote attacker may craft a request that stays below the maximum request header size but consists of many thousands of small headers to consume CPU and result in a denial-of-service attack.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.5 HIGH
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/envoyproxy/envoy/commit/afc39bea36fd436e54262f150c009e8d72db5014 Patch Third Party Advisory
https://github.com/envoyproxy/envoy/commits/master Third Party Advisory
https://github.com/envoyproxy/envoy/issues/8520 Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:envoyproxy:envoy:1.0.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.1.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.2.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.3.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.4.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.5.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.9.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.9.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.10.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.11.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.11.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:envoyproxy:envoy:1.11.2:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-15226
NVD Published Date:
10/09/2019
NVD Last Modified:
10/17/2019