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5.9 Medium

CVE-2024-32975 Envoy crashes in QuicheDataReader::PeekVarInt62Length()

Description

Envoy is a cloud-native, open source edge and service proxy. There is a crash at `QuicheDataReader::PeekVarInt62Length()`. It is caused by integer underflow in the `QuicStreamSequencerBuffer::PeekRegion()` implementation.

CVSS 3.1 detail

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

Exploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector
Network
Attack complexity
High
Privileges required
None
Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Affected products and versions

Product Affected versions Fixed in
envoy 1.30 1.30.0 → 1.30.1 No fix stated
envoy 1.29 1.29.0 → 1.29.4 No fix stated
envoy 1.28 1.28.0 → 1.28.3 No fix stated
envoy 1.27 earliest → 1.27.5 No fix stated

Other CVEs of envoy

The 98 CVEs of envoy →
CVE-2026-73511 Envoy is an open source edge and service proxy designed for cloud-native applications 5.3 Medium CVE-2026-73553 Envoy is an open source edge and service proxy designed for cloud-native applications 7.5 High CVE-2026-73551 Envoy is an open source edge and service proxy designed for cloud-native applications 5.3 Medium CVE-2026-73546 Envoy is an open source edge and service proxy designed for cloud-native applications 7.4 High
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