{"id":"CVE-2024-56161","aliases":["DEBIAN-CVE-2024-56161","DLA-4098-1","EUVD-2024-52992","MGASA-2025-0124","OESA-2025-1307","UBUNTU-CVE-2024-56161","USN-7560-1","USN-7561-1","openSUSE-SU-2026:11242-1"],"status":"published","title":"amd64-microcode - security update","description":"Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD 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epyc™ 7001 series"},{"vendor":"amd","product":"amd epyc™ 7002 series"},{"vendor":"amd","product":"amd epyc™ 7003 series"},{"vendor":"amd","product":"amd epyc™ 9004 series"}],"references":[{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3019.html","tags":["web","report"]},{"url":"http://www.openwall.com/lists/oss-security/2025/02/04/1","tags":["web"]},{"url":"http://www.openwall.com/lists/oss-security/2025/03/06/2","tags":["web"]},{"url":"https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7033.html","tags":["web"]},{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00024.html","tags":["web"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2024-56161","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2025-0124.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=34149","tags":["report"]},{"url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1307","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-56161","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2024-56161","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2024-56161","tags":["report"]},{"url":"https://github.com/google/security-research/security/advisories/GHSA-4xq7-4mgh-gp6w","tags":["report"]},{"url":"https://bughunters.google.com/blog/5424842357473280/zen-and-the-art-of-microcode-hacking","tags":["report"]},{"url":"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1099830#26","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-7560-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/notices/USN-7561-1","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2023-20584","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2023-31356","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2017-5715","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-5753","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-3615","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-3620","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-3640","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-11157","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-0543","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-12965","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-8694","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2021-26318","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-21123","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-29900","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2022-29901","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-20569","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-20588","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-23583","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-28746","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2023-31315","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-28956","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-36350","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-45332","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-56161","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2024-7881","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-20623","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-24495","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-29943","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-40300","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-54505","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2024-56161","description":"Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP.","status":"published","published":"2025-02-03T17:24:01.185Z","modified":"2025-04-02T22:03:14.707Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:33:57.983942Z"}],"euvd":[{"id":"EUVD-2024-52992","description":"Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP.","status":"published","published":"2025-02-03T17:24:01Z","modified":"2025-04-02T22:03:14Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T20:52:44.372321Z"}],"nvd":[{"id":"CVE-2024-56161","description":"Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP.","status":"published","published":"2025-02-03T18:15:37.28Z","modified":"2026-06-17T08:11:46.347Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-347"],"updated_at":"2026-11-02T14:10:43.581383Z"}],"osv":[{"id":"DEBIAN-CVE-2024-56161","description":"Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP.","status":"published","published":"2025-02-03T18:15:37.28Z","modified":"2026-11-02T12:03:02.651617972Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:45:44.429177Z"},{"id":"OESA-2025-1307","title":"linux-firmware security update","description":"This package contains firmware images required by some devices.\r\n\r\nSecurity Fix(es):\n\nImproper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP.(CVE-2024-56161)","status":"published","published":"2025-03-21T11:08:24Z","modified":"2026-08-18T01:17:50.008115374Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T15:52:42.714349Z"},{"id":"UBUNTU-CVE-2024-56161","description":"Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP.","status":"published","published":"2025-02-03T18:15:00Z","modified":"2026-02-04T03:34:26.371165Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T16:55:15.331356Z"},{"id":"CVE-2024-56161","description":"Improper signature verification in AMD CPU ROM microcode patch loader may allow an attacker with local administrator privilege to load malicious CPU microcode resulting in loss of confidentiality and integrity of a confidential guest running under AMD SEV-SNP.","status":"published","published":"2025-02-03T18:15:37Z","modified":"2026-07-10T10:14:41.948499233Z","updated_at":"2026-11-02T15:44:44.777182Z"},{"id":"DLA-4098-1","title":"amd64-microcode - security update","status":"published","published":"2025-03-31T00:00:00Z","modified":"2026-03-09T01:21:14.30972Z","updated_at":"2026-11-02T15:46:12.7027Z"},{"id":"MGASA-2025-0124","title":"Updated microcode packages fix security vulnerability","description":"Improper signature verification in AMD CPU ROM microcode patch loader\nmay allow an attacker with local administrator privilege to load\nmalicious CPU microcode resulting in loss of confidentiality and\nintegrity of a confidential guest running under AMD SEV-SNP.\n(CVE-2024-56161)\n","status":"published","published":"2025-04-03T22:52:14Z","modified":"2026-04-16T04:43:06.624301532Z","updated_at":"2026-11-02T15:49:43.178336Z"},{"id":"openSUSE-SU-2026:11242-1","title":"spectre-meltdown-checker-26.36.0602723-1.1 on GA media","description":"These are all security issues fixed in the spectre-meltdown-checker-26.36.0602723-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-07-09T00:00:00Z","modified":"2026-07-10T10:00:10.593286162Z","updated_at":"2026-11-02T16:58:38.95195Z"},{"id":"USN-7560-1","title":"amd64-microcode vulnerability","description":"Josh Eads, Kristoffer Janke, Eduardo Nava, Tavis Ormandy and Matteo Rizzo\ndiscovered that AMD Microcode incorrectly verified signatures. An attacker\nwith local administrator privilege could possibly use this issue to cause\nloss of confidentiality and integrity of a confidential guest running under\nAMD SEV-SNP.","status":"published","published":"2025-06-09T13:18:04.824499Z","modified":"2026-02-04T02:52:00.997332Z","updated_at":"2026-11-02T16:58:19.988474Z"},{"id":"USN-7561-1","title":"amd64-microcode vulnerabilities","description":"It was discovered that AMD Microcode incorrectly handled memory addresses.\nAn attacker with local administrator privilege could possibly use this\nissue to cause loss of integrity of a confidential guest running under AMD\nSEV-SNP. (CVE-2023-20584, CVE-2023-31356)\n\nJosh Eads, Kristoffer Janke, Eduardo Nava, Tavis Ormandy and Matteo Rizzo\ndiscovered that AMD Microcode incorrectly verified signatures. An attacker\nwith local administrator privilege could possibly use this issue to cause\nloss of confidentiality and integrity of a confidential guest running under\nAMD SEV-SNP. (CVE-2024-56161)","status":"published","published":"2025-06-09T13:38:02Z","modified":"2026-02-10T04:48:59Z","updated_at":"2026-11-02T16:58:19.988474Z"}]}}