Upstream information

CVE-2024-27919 at MITRE


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.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently rated as having important severity.

SUSE Bugzilla entry: 1221398 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

SUSE Timeline for this CVE

CVE page created: Thu Mar 14 13:39:51 2024
CVE page last modified: Thu Apr 11 00:39:27 2024