{"id":"UBUNTU-CVE-2023-45237","details":"EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This  vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.","modified":"2026-04-17T09:53:03.238290Z","published":"2024-01-16T16:15:00Z","related":["USN-7894-1","USN-7894-2"],"upstream":["CVE-2023-45237"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-45237"},{"type":"REPORT","url":"https://blog.quarkslab.com/pixiefail-nine-vulnerabilities-in-tianocores-edk-ii-ipv6-network-stack.html"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2024/01/16/2"},{"type":"REPORT","url":"https://github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6p-gj7h"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-45237"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7894-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7894-2"}],"affected":[{"package":{"name":"edk2","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/edk2@0~20160408.ffea0a2c-2ubuntu0.2+esm3?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0~20150106.5c2d456b-2","0~20160104.c2a892d7-1","0~20160408.ffea0a2c-2","0~20160408.ffea0a2c-2ubuntu0.1","0~20160408.ffea0a2c-2ubuntu0.2","0~20160408.ffea0a2c-2ubuntu0.2+esm1","0~20160408.ffea0a2c-2ubuntu0.2+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"ovmf","binary_version":"0~20160408.ffea0a2c-2ubuntu0.2+esm3"},{"binary_name":"qemu-efi","binary_version":"0~20160408.ffea0a2c-2ubuntu0.2+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45237.json"}},{"package":{"name":"edk2","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/edk2@0~20180205.c0d9813c-2ubuntu0.3+esm2?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0~20170911.5dfba97c-1","0~20171010.234dbcef-1","0~20171027.76fd5a66-1","0~20171205.a9212288-1","0~20180105.0bc94c74-1","0~20180205.c0d9813c-1","0~20180205.c0d9813c-2","0~20180205.c0d9813c-2ubuntu0.1","0~20180205.c0d9813c-2ubuntu0.2","0~20180205.c0d9813c-2ubuntu0.3","0~20180205.c0d9813c-2ubuntu0.3+esm1","0~20180205.c0d9813c-2ubuntu0.3+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"ovmf","binary_version":"0~20180205.c0d9813c-2ubuntu0.3+esm2"},{"binary_name":"qemu-efi","binary_version":"0~20180205.c0d9813c-2ubuntu0.3+esm2"},{"binary_name":"qemu-efi-aarch64","binary_version":"0~20180205.c0d9813c-2ubuntu0.3+esm2"},{"binary_name":"qemu-efi-arm","binary_version":"0~20180205.c0d9813c-2ubuntu0.3+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45237.json"}},{"package":{"name":"edk2","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/edk2@0~20191122.bd85bf54-2ubuntu3.6?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0~20190606.20d2e5a1-2ubuntu1","0~20190828.37eef910-3","0~20190828.37eef910-4","0~20191122.bd85bf54-1","0~20191122.bd85bf54-1ubuntu1","0~20191122.bd85bf54-2","0~20191122.bd85bf54-2ubuntu1","0~20191122.bd85bf54-2ubuntu2","0~20191122.bd85bf54-2ubuntu3","0~20191122.bd85bf54-2ubuntu3.1","0~20191122.bd85bf54-2ubuntu3.2","0~20191122.bd85bf54-2ubuntu3.3","0~20191122.bd85bf54-2ubuntu3.4","0~20191122.bd85bf54-2ubuntu3.5","0~20191122.bd85bf54-2ubuntu3.6"],"ecosystem_specific":{"binaries":[{"binary_name":"ovmf","binary_version":"0~20191122.bd85bf54-2ubuntu3.6"},{"binary_name":"qemu-efi","binary_version":"0~20191122.bd85bf54-2ubuntu3.6"},{"binary_name":"qemu-efi-aarch64","binary_version":"0~20191122.bd85bf54-2ubuntu3.6"},{"binary_name":"qemu-efi-arm","binary_version":"0~20191122.bd85bf54-2ubuntu3.6"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45237.json"}},{"package":{"name":"edk2","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/edk2@2022.02-3ubuntu0.22.04.5?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2021.08~rc0-2","2021.08-3","2021.11~rc1-1","2021.11-1","2021.11-2","2022.02~rc1-1","2022.02~rc1-1ubuntu1","2022.02-1","2022.02-2","2022.02-3","2022.02-3ubuntu0.22.04.1","2022.02-3ubuntu0.22.04.2","2022.02-3ubuntu0.22.04.3","2022.02-3ubuntu0.22.04.4","2022.02-3ubuntu0.22.04.5"],"ecosystem_specific":{"binaries":[{"binary_name":"ovmf","binary_version":"2022.02-3ubuntu0.22.04.5"},{"binary_name":"ovmf-ia32","binary_version":"2022.02-3ubuntu0.22.04.5"},{"binary_name":"qemu-efi","binary_version":"2022.02-3ubuntu0.22.04.5"},{"binary_name":"qemu-efi-aarch64","binary_version":"2022.02-3ubuntu0.22.04.5"},{"binary_name":"qemu-efi-arm","binary_version":"2022.02-3ubuntu0.22.04.5"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-45237.json"}},{"package":{"name":"edk2","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/edk2@2024.02-2ubuntu0.8?arch=source&distro=noble"},"ranges":[{"type":"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