{"id":"CVE-2024-32975","title":"Envoy crashes in QuicheDataReader::PeekVarInt62Length()","summary":"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.","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"cna","cwe":["CWE-191"],"vendor":"envoyproxy","product":"envoy","affected":["envoy >= 1.30.0, <= 1.30.1","envoy >= 1.29.0, <= 1.29.4","envoy >= 1.28.0, <= 1.28.3","envoy <= 1.27.5"],"ssvc":{"exploitation":"poc","automatable":"yes","technicalImpact":"partial","timestamp":"2024-06-20T15:20:00.503325Z"},"exploitAvailable":true,"published":"2024-06-04","updated":"2026-11-05","sourceUpdated":"2026-11-05T15:56:04.290Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-32975","references":[{"url":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-g9mq-6v96-cpqc","label":"https://github.com/envoyproxy/envoy/security/advisories/GHSA-g9mq-6v96-cpqc"}],"tags":["cve.org","exploit-available"],"epss":0.00693,"epssPercentile":0.53031,"ingestedAt":"2026-11-05T21:36:00.933Z","slug":"CVE-2024-32975","body":"## Overview\n\nEnvoy 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.\n\n## Affected\n\n- `envoy >= 1.30.0, <= 1.30.1`\n- `envoy >= 1.29.0, <= 1.29.4`\n- `envoy >= 1.28.0, <= 1.28.3`\n- `envoy <= 1.27.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":32.5,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}