{"id":"UBUNTU-CVE-2026-34183","details":"Issue summary: Remote peer may exhaust heap memory of the QUIC server or client by flooding it with packets containing PATH_CHALLENGE frames. Impact summary: A malicious remote peer can cause an unbounded memory allocation which can lead to an abnormal termination of the application acting as a QUIC client or server and a Denial of Service. A remote peer may exhaust heap memory by flooding the local QUIC stack with PATH_CHALLENGE frames. The local QUIC stack allocates a PATH_RESPONSE frame for every PATH_CHALLENGE it receives. The allocated PATH_RESPONSE frame gets freed only when the remote peer acknowledges reception of the PATH_RESPONSE frame which will not be done by a malicious peer. The FIPS modules in 4.0, 3.6, 3.5, 3.4, and 3.0 are not affected by this issue. The QUIC stack is outside of OpenSSL FIPS module boundary.","modified":"2026-09-15T08:31:34.945137922Z","published":"2026-06-09T00:00:00Z","related":["USN-8414-1"],"upstream":["CVE-2026-34183"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-34183"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-34183"},{"type":"REPORT","url":"https://openssl-library.org/news/secadv/20260609.txt"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8414-1"}],"affected":[{"package":{"name":"nodejs","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/nodejs?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["12.22.5~dfsg-5ubuntu1","12.22.7~dfsg-2ubuntu1","12.22.7~dfsg-2ubuntu3","12.22.9~dfsg-1ubuntu2","12.22.9~dfsg-1ubuntu3","12.22.9~dfsg-1ubuntu3.1","12.22.9~dfsg-1ubuntu3.2","12.22.9~dfsg-1ubuntu3.3","12.22.9~dfsg-1ubuntu3.4","12.22.9~dfsg-1ubuntu3.5","12.22.9~dfsg-1ubuntu3.6","12.22.9~dfsg-1ubuntu3.6+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"libnode72","binary_version":"12.22.9~dfsg-1ubuntu3.6+esm2"},{"binary_version":"12.22.9~dfsg-1ubuntu3.6+esm2","binary_name":"nodejs"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34183.json"}},{"package":{"name":"edk2","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/edk2?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2025.02-3ubuntu2","2025.02-8","2025.02-8ubuntu1","2025.02-8ubuntu2","2025.02-8ubuntu3","2025.02-8ubuntu3.1","2025.02-8ubuntu3.2"],"ecosystem_specific":{"binaries":[{"binary_name":"efi-shell-aa64","binary_version":"2025.02-8ubuntu3.2"},{"binary_name":"efi-shell-arm","binary_version":"2025.02-8ubuntu3.2"},{"binary_version":"2025.02-8ubuntu3.2","binary_name":"efi-shell-ia32"},{"binary_name":"efi-shell-loongarch64","binary_version":"2025.02-8ubuntu3.2"},{"binary_version":"2025.02-8ubuntu3.2","binary_name":"efi-shell-riscv64"},{"binary_name":"efi-shell-x64","binary_version":"2025.02-8ubuntu3.2"},{"binary_name":"ovmf","binary_version":"2025.02-8ubuntu3.2"},{"binary_name":"ovmf-ia32","binary_version":"2025.02-8ubuntu3.2"},{"binary_name":"ovmf-inteltdx","binary_version":"2025.02-8ubuntu3.2"},{"binary_name":"ovmf-legacy","binary_version":"2025.02-8ubuntu3.2"},{"binary_version":"2025.02-8ubuntu3.2","binary_name":"qemu-efi-aarch64"},{"binary_version":"2025.02-8ubuntu3.2","binary_name":"qemu-efi-arm"},{"binary_name":"qemu-efi-loongarch64","binary_version":"2025.02-8ubuntu3.2"},{"binary_name":"qemu-efi-riscv64","binary_version":"2025.02-8ubuntu3.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34183.json"}},{"package":{"name":"openssl","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/openssl?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.3-1ubuntu3.4"}]}],"versions":["3.4.1-1ubuntu3","3.5.0-2ubuntu1","3.5.2-1ubuntu1","3.5.3-1ubuntu2","3.5.3-1ubuntu3","3.5.3-1ubuntu3.3"],"ecosystem_specific":{"binaries":[{"binary_name":"libssl3t64","binary_version":"3.5.3-1ubuntu3.4"},{"binary_name":"openssl","binary_version":"3.5.3-1ubuntu3.4"},{"binary_version":"3.5.3-1ubuntu3.4","binary_name":"openssl-provider-legacy"}],"availability":"No 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