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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2024-27919 Detail

Description

Envoy is a cloud-native, open-source edge and service proxy. In versions 1.29.0 and 1.29.1, theEnvoy HTTP/2 protocol stack is vulnerable to the flood of CONTINUATION frames. Envoy's HTTP/2 codec does not reset a request when header map limits have been exceeded. This allows an attacker to send an sequence of CONTINUATION frames without the END_HEADERS bit set causing unlimited memory consumption. This can lead to denial of service through memory exhaustion. Users should upgrade to versions 1.29.2 to mitigate the effects of the CONTINUATION flood. Note that this vulnerability is a regression in Envoy version 1.29.0 and 1.29.1 only. As a workaround, downgrade to version 1.28.1 or earlier or disable HTTP/2 protocol for downstream connections.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.openwall.com/lists/oss-security/2024/04/03/16 CVE, GitHub, Inc. Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2024/04/05/3 CVE, GitHub, Inc. Mailing List 
https://github.com/envoyproxy/envoy/commit/57a02565532c18eb9df972a3e8974be3ae59f2d5 CVE, GitHub, Inc. Patch 
https://github.com/envoyproxy/envoy/security/advisories/GHSA-gghf-vfxp-799r CVE, GitHub, Inc. Patch  Third Party Advisory 
https://www.kb.cert.org/vuls/id/421644 CVE

Weakness Enumeration

CWE-ID CWE Name Source
CWE-390 Detection of Error Condition Without Action GitHub, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

8 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-27919
NVD Published Date:
04/04/2024
NVD Last Modified:
06/17/2026
Source:
GitHub, Inc.