{"id":"USN-7585-4","summary":"linux-azure-5.4 vulnerabilities","details":"It was discovered that the CIFS network file system implementation in the\nLinux kernel did not properly verify the target namespace when handling\nupcalls. An attacker could use this to expose sensitive information.\n(CVE-2025-2312)\n\nSeveral security issues were discovered in the Linux kernel.\nAn attacker could possibly use these to compromise the system.\nThis update corrects flaws in the following subsystems:\n  - PowerPC architecture;\n  - x86 architecture;\n  - iSCSI Boot Firmware Table Attributes driver;\n  - GPU drivers;\n  - HID subsystem;\n  - InfiniBand drivers;\n  - Media drivers;\n  - MemoryStick subsystem;\n  - Network drivers;\n  - NTB driver;\n  - PCI subsystem;\n  - SCSI subsystem;\n  - Thermal drivers;\n  - JFS file system;\n  - File systems infrastructure;\n  - Tracing infrastructure;\n  - 802.1Q VLAN protocol;\n  - Asynchronous Transfer Mode (ATM) subsystem;\n  - Bluetooth subsystem;\n  - IPv6 networking;\n  - Netfilter;\n  - Network traffic control;\n  - Sun RPC protocol;\n  - USB sound devices;\n(CVE-2025-22007, CVE-2025-21959, CVE-2025-22021, CVE-2025-22063,\nCVE-2025-22045, CVE-2024-58093, CVE-2022-49636, CVE-2025-22020,\nCVE-2024-53168, CVE-2025-22071, CVE-2025-39735, CVE-2025-21991,\nCVE-2025-21992, CVE-2025-21996, CVE-2025-22035, CVE-2023-53034,\nCVE-2025-22054, CVE-2025-23136, CVE-2025-22073, CVE-2024-56551,\nCVE-2025-22005, CVE-2025-37937, CVE-2021-47211, CVE-2025-22086,\nCVE-2025-21956, CVE-2025-38637, CVE-2025-22004, CVE-2025-22018,\nCVE-2025-22079, CVE-2025-21957, CVE-2025-21993)\n","modified":"2026-02-10T04:49:02Z","published":"2025-06-25T15:14:44Z","related":["UBUNTU-CVE-2021-47211","UBUNTU-CVE-2022-49636","UBUNTU-CVE-2023-53034","UBUNTU-CVE-2024-53168","UBUNTU-CVE-2024-56551","UBUNTU-CVE-2024-58093","UBUNTU-CVE-2025-21956","UBUNTU-CVE-2025-21957","UBUNTU-CVE-2025-21959","UBUNTU-CVE-2025-21991","UBUNTU-CVE-2025-21992","UBUNTU-CVE-2025-21993","UBUNTU-CVE-2025-21996","UBUNTU-CVE-2025-22004","UBUNTU-CVE-2025-22005","UBUNTU-CVE-2025-22007","UBUNTU-CVE-2025-22018","UBUNTU-CVE-2025-22020","UBUNTU-CVE-2025-22021","UBUNTU-CVE-2025-22035","UBUNTU-CVE-2025-22045","UBUNTU-CVE-2025-22054","UBUNTU-CVE-2025-22063","UBUNTU-CVE-2025-22071","UBUNTU-CVE-2025-22073","UBUNTU-CVE-2025-22079","UBUNTU-CVE-2025-22086","UBUNTU-CVE-2025-2312","UBUNTU-CVE-2025-23136","UBUNTU-CVE-2025-37937","UBUNTU-CVE-2025-38637","UBUNTU-CVE-2025-39735"],"upstream":["CVE-2021-47211","CVE-2022-49636","CVE-2023-53034","CVE-2024-53168","CVE-2024-56551","CVE-2024-58093","CVE-2025-21956","CVE-2025-21957","CVE-2025-21959","CVE-2025-21991","CVE-2025-21992","CVE-2025-21993","CVE-2025-21996","CVE-2025-22004","CVE-2025-22005","CVE-2025-22007","CVE-2025-22018","CVE-2025-22020","CVE-2025-22021","CVE-2025-22035","CVE-2025-22045","CVE-2025-22054","CVE-2025-22063","CVE-2025-22071","CVE-2025-22073","CVE-2025-22079","CVE-2025-22086","CVE-2025-2312","CVE-2025-23136","CVE-2025-37937","CVE-2025-38637","CVE-2025-39735","UBUNTU-CVE-2021-47211","UBUNTU-CVE-2022-49636","UBUNTU-CVE-2023-53034","UBUNTU-CVE-2024-53168","UBUNTU-CVE-2024-56551","UBUNTU-CVE-2024-58093","UBUNTU-CVE-2025-21956","UBUNTU-CVE-2025-21957","UBUNTU-CVE-2025-21959","UBUNTU-CVE-2025-21991","UBUNTU-CVE-2025-21992","UBUNTU-CVE-2025-21993","UBUNTU-CVE-2025-21996","UBUNTU-CVE-2025-22004","UBUNTU-CVE-2025-22005","UBUNTU-CVE-2025-22007","UBUNTU-CVE-2025-22018","UBUNTU-CVE-2025-22020","UBUNTU-CVE-2025-22021","UBUNTU-CVE-2025-22035","UBUNTU-CVE-2025-22045","UBUNTU-CVE-2025-22054","UBUNTU-CVE-2025-22063","UBUNTU-CVE-2025-22071","UBUNTU-CVE-2025-22073","UBUNTU-CVE-2025-22079","UBUNTU-CVE-2025-22086","UBUNTU-CVE-2025-2312","UBUNTU-CVE-2025-23136","UBUNTU-CVE-2025-37937","UBUNTU-CVE-2025-38637","UBUNTU-CVE-2025-39735"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7585-4"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-47211"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2022-49636"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-53034"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-53168"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-56551"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-58093"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-2312"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-21956"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-21957"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-21959"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-21991"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-21992"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-21993"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-21996"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22004"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22005"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22007"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22018"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22020"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22021"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22035"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22045"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22054"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22063"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22071"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22073"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22079"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-22086"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-23136"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-37937"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-38637"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2025-39735"}],"affected":[{"package":{"name":"linux-azure-5.4","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/linux-azure-5.4@5.4.0-1152.159~18.04.1?arch=source&distro=esm-infra/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.0-1152.159~18.04.1"}]}],"versions":["5.4.0-1020.20~18.04.1","5.4.0-1022.22~18.04.1","5.4.0-1023.23~18.04.1","5.4.0-1025.25~18.04.1","5.4.0-1026.26~18.04.1","5.4.0-1031.32~18.04.1","5.4.0-1032.33~18.04.1","5.4.0-1034.35~18.04.1","5.4.0-1035.36~18.04.1","5.4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with Ubuntu Pro (Infra-only): https://ubuntu.com/pro","binaries":[{"binary_version":"5.4.0-1152.159~18.04.1","binary_name":"linux-azure-5.4-cloud-tools-5.4.0-1152"},{"binary_version":"5.4.0-1152.159~18.04.1","binary_name":"linux-azure-5.4-headers-5.4.0-1152"},{"binary_version":"5.4.0-1152.159~18.04.1","binary_name":"linux-azure-5.4-tools-5.4.0-1152"},{"binary_version":"5.4.0-1152.159~18.04.1","binary_name":"linux-buildinfo-5.4.0-1152-azure"},{"binary_version":"5.4.0-1152.159~18.04.1","binary_name":"linux-cloud-tools-5.4.0-1152-azure"},{"binary_version":"5.4.0-1152.159~18.04.1","binary_name":"linux-headers-5.4.0-1152-azure"},{"binary_version":"5.4.0-1152.159~18.04.1","binary_name":"linux-image-unsigned-5.4.0-1152-azure"},{"binary_version":"5.4.0-1152.159~18.04.1","binary_name":"linux-modules-5.4.0-1152-azure"},{"binary_version":"5.4.0-1152.159~18.04.1","binary_name":"linux-modules-extra-5.4.0-1152-azure"},{"binary_version":"5.4.0-1152.159~18.04.1","binary_name":"linux-tools-5.4.0-1152-azure"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7585-4.json","cves_map":{"ecosystem":"Ubuntu:Pro:18.04:LTS","cves":[{"id":"CVE-2021-47211","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2022-49636","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2023-53034","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2024-53168","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2024-56551","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]},{"id":"CVE-2024-58093","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}]},{"id":"CVE-2025-2312","severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-21956","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-21957","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-21959","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-21991","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-21992","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-21993","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-21996","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22004","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22005","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22007","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22018","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22020","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22021","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22035","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22045","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22054","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22063","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22071","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22073","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22079","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-22086","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-23136","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-37937","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-38637","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}]},{"id":"CVE-2025-39735","severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H","type":"CVSS_V3"},{"score":"high","type":"Ubuntu"}]}]}}}],"schema_version":"1.7.3"}