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CVE-2024-27919

HIGH

7.5

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.

Details CVE

Score CVSS v3.17.5

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisNONE

Interaction utilisateurNONE

Publie4/4/2024

Derniere modification11/4/2025

Sourcenvd

Observations honeypot0

Produits affectes

envoyproxy:envoy

Faiblesses (CWE)

CWE-390

References

http://www.openwall.com/lists/oss-security/2024/04/03/16(security-advisories@github.com)

http://www.openwall.com/lists/oss-security/2024/04/05/3(security-advisories@github.com)

https://github.com/envoyproxy/envoy/commit/57a02565532c18eb9df972a3e8974be3ae59f2d5(security-advisories@github.com)

https://github.com/envoyproxy/envoy/security/advisories/GHSA-gghf-vfxp-799r(security-advisories@github.com)

http://www.openwall.com/lists/oss-security/2024/04/03/16(af854a3a-2127-422b-91ae-364da2661108)

http://www.openwall.com/lists/oss-security/2024/04/05/3(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/envoyproxy/envoy/commit/57a02565532c18eb9df972a3e8974be3ae59f2d5(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/envoyproxy/envoy/security/advisories/GHSA-gghf-vfxp-799r(af854a3a-2127-422b-91ae-364da2661108)

https://www.kb.cert.org/vuls/id/421644(af854a3a-2127-422b-91ae-364da2661108)

Correlations IOC

Aucune correlation enregistree

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