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CVE-2019-18838

HIGH

7.5

Description

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published12/13/2019

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

envoyproxy:envoy

Weaknesses (CWE)

CWE-476

References

https://blog.envoyproxy.io(cve@mitre.org)

https://github.com/envoyproxy/envoy/commits/master(cve@mitre.org)

https://github.com/envoyproxy/envoy/security/advisories/GHSA-f2rv-4w6x-rwhc(cve@mitre.org)

https://groups.google.com/forum/#%21forum/envoy-users(cve@mitre.org)

https://blog.envoyproxy.io(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/envoyproxy/envoy/commits/master(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/envoyproxy/envoy/security/advisories/GHSA-f2rv-4w6x-rwhc(af854a3a-2127-422b-91ae-364da2661108)

https://groups.google.com/forum/#%21forum/envoy-users(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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