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CVE-2024-27919

HIGH

7.5

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.17.5

SeveridadeHIGH

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado4/4/2024

Ultima modificacao11/4/2025

Fontenvd

Avistamentos honeypot0

Produtos afetados

envoyproxy:envoy

Fraquezas (CWE)

CWE-390

Referencias

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)

Correlacoes IOC

Sem correlacoes registradas

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