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"content": "", "creation_timestamp": "2026-04-07T18:00:00.000000Z"}, {"uuid": "c325ce37-4dfe-4ad0-9795-c73c87160e0f", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40307", "type": "seen", "source": "https://www.hkcert.org/security-bulletin/ubuntu-linux-kernel-multiple-vulnerabilities_20260408", "content": "", "creation_timestamp": "2026-04-07T18:00:00.000000Z"}, {"uuid": "68e93c28-e3e3-436e-8b0c-4239bb0f3dc1", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40308", "type": "seen", "source": "https://www.hkcert.org/security-bulletin/ubuntu-linux-kernel-multiple-vulnerabilities_20260408", "content": "", "creation_timestamp": "2026-04-07T18:00:00.000000Z"}, {"uuid": "c238a6e5-6ecd-4c29-ae6d-5a16ba739157", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-4030", "type": "published-proof-of-concept", "source": "https://t.me/DarkWebInformer_CVEAlerts/13720", "content": "\ud83d\udd17 DarkWebInformer.com - Cyber Threat Intelligence\n\ud83d\udccc CVE ID: CVE-2025-4030\n\ud83d\udd25 CVSS Score: 6.9 (cvssV4_0, Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N)\n\ud83d\udd39 Description: A vulnerability was found in PHPGurukul COVID19 Testing Management System 1.0. It has been classified as critical. This affects an unknown part of the file /search-report-result.php. The manipulation of the argument serachdata leads to sql injection. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.\n\ud83d\udccf Published: 2025-04-28T17:31:05.190Z\n\ud83d\udccf Modified: 2025-04-28T17:55:30.139Z\n\ud83d\udd17 References:\n1. https://vuldb.com/?id.306393\n2. https://vuldb.com/?ctiid.306393\n3. https://vuldb.com/?submit.559199\n4. https://github.com/JunZ-Leo/CVE/issues/2\n5. https://phpgurukul.com/", "creation_timestamp": "2025-04-28T18:11:02.000000Z"}, {"uuid": "5a7282a6-5d20-4487-951b-25ad2df39c5f", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40309", "type": "published-proof-of-concept", "source": "Telegram/PJ0624gDLdyTO0vVvr-4zwa3ib0JJFcfMDnXcsBI6RfrbkA", "content": "", "creation_timestamp": "2026-01-02T18:46:25.000000Z"}, {"uuid": "8833ea4c-ef82-43bd-ab1b-7401b8277ee2", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "published-proof-of-concept", "source": "https://t.me/poxek/5528", "content": "CVE-2025-40300: VMScape \u2014 \u043a\u043e\u0433\u0434\u0430 Spectre \u043f\u0440\u0438\u0448\u0435\u043b \u0432 \u043e\u0431\u043b\u0430\u043a\u0430 \u2601\ufe0f\n#cloud #vmscape #AMD #Intel #KVM #Qemu #Xen\n\n\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 ETH Zurich \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u043b\u0438 VMScape \u2014 \u043f\u0435\u0440\u0432\u0443\u044e \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u0443\u044e \u0430\u0442\u0430\u043a\u0443 \u043d\u0430 \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u044e branch predictor \u043c\u0435\u0436\u0434\u0443 host \u0438 guest \u0432 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u0441\u0440\u0435\u0434\u0430\u0445. Spectre-BTI \u0442\u0435\u043f\u0435\u0440\u044c \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0432 \u043e\u0431\u043b\u0430\u043a\u0430\u0445.\n\n\u27a1\ufe0f\u0427\u0442\u043e \u0437\u0430\u0446\u0435\u043f\u0438\u043b\u043e\n\n\u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 \u0447\u0435\u0442\u044b\u0440\u0435\u0445 \u0434\u043e\u043c\u0435\u043d\u043e\u0432:\n\u25aa\ufe0f\u0412\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u0441\u043e\u0437\u0434\u0430\u0435\u0442 4 \u0434\u043e\u043c\u0435\u043d\u0430 \u0437\u0430\u0449\u0438\u0442\u044b \u0432\u043c\u0435\u0441\u0442\u043e \u043a\u043b\u0430\u0441\u0441\u0438\u0447\u0435\u0441\u043a\u0438\u0445 2\n\u25aa\ufe0fHost User (HU), Host Supervisor (HS), Guest User (GU), Guest Supervisor (GS)\n\u25aa\ufe0fAMD Zen (\u0432\u043a\u043b\u044e\u0447\u0430\u044f Zen 5): branch predictor \u043d\u0435 \u0440\u0430\u0437\u043b\u0438\u0447\u0430\u0435\u0442 host \u0438 guest\n\u25aa\ufe0fIntel eIBRS \u0438\u0437\u043e\u043b\u0438\u0440\u0443\u0435\u0442 BTB, \u043d\u043e \u0443\u044f\u0437\u0432\u0438\u043c \u043a vBHI (virtualization Branch History Injection)\n\n\u041f\u0435\u0440\u0432\u0430\u044f \u0430\u0442\u0430\u043a\u0430 \u043d\u0430 usermode hypervisor:\n\u25aa\ufe0f\u0412\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u0430\u044f KVM guest VM \u043a\u0440\u0430\u0434\u0435\u0442 \u0441\u0435\u043a\u0440\u0435\u0442\u044b \u0438\u0437 QEMU\n\u25aa\ufe0f\u0423\u0442\u0435\u0447\u043a\u0430 encryption/decryption \u043a\u043b\u044e\u0447\u0435\u0439\n\u25aa\ufe0f\u0420\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u043d\u0430 AMD Zen 4 \u0438 Zen 5\n\u25aa\ufe0f\u041a\u043e\u043c\u043f\u0440\u043e\u043c\u0435\u0442\u0430\u0446\u0438\u044f \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440\u0430, \u0430 \u043d\u0435 \u043e\u0442\u0434\u0435\u043b\u044c\u043d\u043e\u0439 VM\n\n\u27a1\ufe0f\u041f\u043e \u0442\u0435\u0445\u043d\u0438\u043a\u0435\n\n\u041d\u043e\u0432\u044b\u0435 \u043f\u0440\u0438\u043c\u0438\u0442\u0438\u0432\u044b \u0430\u0442\u0430\u043a:\n\nvBTI (virtualization Branch Target Injection):\n\u25aa\ufe0fBTB \u0437\u0430\u043f\u0438\u0441\u0438 \u0441\u043c\u0435\u0448\u0438\u0432\u0430\u044e\u0442\u0441\u044f \u043c\u0435\u0436\u0434\u0443 host \u0438 guest\n\u25aa\ufe0f\u0417\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u0438\u0440\u0443\u0435\u0442 branch predictions\n\nvBHI (virtualization Branch History Injection):\n\u25aa\ufe0f\u0414\u043b\u044f Intel CPU \u0441 eIBRS\n\u25aa\ufe0f\u0427\u0430\u0441\u0442\u0438\u0447\u043d\u044b\u0439 \u043a\u043e\u043d\u0442\u0440\u043e\u043b\u044c branch history \u0438\u0437 guest\n\n\u041e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u0438 Zen 5:\n\u25aa\ufe0f\u041d\u043e\u0432\u044b\u0439 single-bit privilege tag \u0432 BTB\n\u25aa\ufe0f\u0417\u0430\u0449\u0438\u0449\u0430\u0435\u0442 \u043e\u0442 \u043a\u043b\u0430\u0441\u0441\u0438\u0447\u0435\u0441\u043a\u0438\u0445 cross-privilege BTI (user \u2192 supervisor)\n\u25aa\ufe0f\u041d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0434\u043b\u044f \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 4 \u0434\u043e\u043c\u0435\u043d\u043e\u0432 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438\n\u25aa\ufe0f\u0424\u0443\u043d\u0434\u0430\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u0430\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430: 1 \u0431\u0438\u0442 \u043d\u0435 \u043c\u043e\u0436\u0435\u0442 \u0440\u0430\u0437\u043b\u0438\u0447\u0438\u0442\u044c 4 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u044f\n\n\u27a1\ufe0f\u041c\u0430\u0441\u0448\u0442\u0430\u0431 \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f\n\n\u041a\u0442\u043e \u043f\u043e\u0434 \u0443\u0433\u0440\u043e\u0437\u043e\u0439:\n- \u0412\u0441\u0435 \u043e\u0431\u043b\u0430\u0447\u043d\u044b\u0435 \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440\u044b (AWS, Azure, GCP)\n- KVM/QEMU \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\n- AMD Zen CPU \u0432\u0441\u0435\u0445 \u043f\u043e\u043a\u043e\u043b\u0435\u043d\u0438\u0439\n- \u0421\u0442\u0430\u0440\u044b\u0435 Intel CPU \u0431\u0435\u0437 eIBRS\n\n\u0420\u0435\u0430\u043b\u044c\u043d\u044b\u0435 \u043f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f:\n\u25aa\ufe0f\u0423\u0442\u0435\u0447\u043a\u0430 \u0434\u0430\u043d\u043d\u044b\u0445 \u043c\u0435\u0436\u0434\u0443 VM \u0440\u0430\u0437\u043d\u044b\u0445 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432\n\u25aa\ufe0f\u041a\u043e\u043c\u043f\u0440\u043e\u043c\u0435\u0442\u0430\u0446\u0438\u044f hypervisor'\u0430 \u0438\u0437 guest VM\n\u25aa\ufe0f\u041a\u0440\u0430\u0436\u0430 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0445 \u043a\u043b\u044e\u0447\u0435\u0439\n\u25aa\ufe0f\u041d\u0430\u0440\u0443\u0448\u0435\u043d\u0438\u0435 \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 \u0432 multi-tenant \u0441\u0440\u0435\u0434\u0430\u0445\n\n\u27a1\ufe0f\u0417\u0430\u0449\u0438\u0442\u0430 \u0438 \u043c\u0438\u0442\u0438\u0433\u0430\u0446\u0438\u044f\n\nLinux kernel \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f:\n# \u041f\u0440\u043e\u0432\u0435\u0440\u0438\u0442\u044c \u0432\u0435\u0440\u0441\u0438\u044e \u044f\u0434\u0440\u0430\nuname -r\n\n# IBPB flush \u043f\u0440\u0438 VMExit \u0432 userspace\n# \u0414\u043e\u0441\u0442\u0443\u043f\u043d\u043e \u0432 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0445 \u0432\u0435\u0440\u0441\u0438\u044f\u0445 Linux kernel\n\n\u0421\u0442\u0430\u0442\u0443\u0441 \u043f\u043e \u0432\u0435\u043d\u0434\u043e\u0440\u0430\u043c:\n\u25aa\ufe0fLinux KVM: \u0418\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u043e \u0432 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0438\u0445 \u0432\u0435\u0440\u0441\u0438\u044f\u0445\n\u25aa\ufe0fXen: \u041d\u0435 \u0437\u0430\u0442\u0440\u043e\u043d\u0443\u0442\n\u25aa\ufe0fVMware/Hyper-V: \u041f\u043e\u043b\u0443\u0447\u0438\u043b\u0438 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043e\u0442 AMD/Intel\n\u25aa\ufe0f\u041e\u0431\u043b\u0430\u0447\u043d\u044b\u0435 \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440\u044b: \u041e\u0431\u043d\u043e\u0432\u043b\u044f\u044e\u0442 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0443\n\n\u0412\u0438\u0434\u0435\u043e \u0432\u0437\u044f\u043b \u0417\u0414\u0415\u0421\u042c\n\n\ud83c\udf1a @poxek | \ud83c\udf1a \u0411\u043b\u043e\u0433 | \ud83d\udcfa YT | \ud83d\udcfa RT | \ud83d\udcfa VK", "creation_timestamp": "2025-09-18T08:44:50.000000Z"}, {"uuid": "81000dfe-a60a-48d0-b940-de9623c88bae", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "seen", "source": "https://bsky.app/profile/bluesky.awakari.com/post/3m65gba4vac2u", "content": "", "creation_timestamp": "2025-11-21T13:47:39.380577Z"}, {"uuid": "98a97106-0b39-4af1-84ad-68c2bfb888a4", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "seen", "source": "https://seclists.org/oss-sec/2025/q4/178", "content": "", "creation_timestamp": "2025-11-14T06:55:05.000000Z"}, {"uuid": "bb21bc7f-8568-43b8-a158-a8d3f8b525d3", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "seen", "source": "https://bsky.app/profile/infosec.skyfleet.blue/post/3m5mawifyyr2d", "content": "", "creation_timestamp": "2025-11-14T17:56:52.488575Z"}, {"uuid": "60e99681-c2ed-48bf-b30b-94cf7cb45d62", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "seen", "source": "https://bsky.app/profile/Ubuntu.activitypub.awakari.com.ap.brid.gy/post/3m5jnehc7n642", "content": "", "creation_timestamp": "2025-11-13T17:02:35.306616Z"}, {"uuid": "7f4296ba-9c57-45ae-9e74-1b67fe8f5f43", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "seen", "source": "https://bsky.app/profile/bluesky.awakari.com/post/3m5jnedmfkt2r", "content": "", "creation_timestamp": "2025-11-13T17:01:23.503691Z"}, {"uuid": "b2469cb7-0d95-4524-885d-88c136730cfc", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "seen", "source": "https://bsky.app/profile/matricedigitale.bsky.social/post/3lynhjri33s2h", "content": "", "creation_timestamp": "2025-09-12T14:21:44.394641Z"}, {"uuid": "ec8ad7fc-dd46-4940-b5e1-0ac005bf2ef2", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "seen", "source": "https://bsky.app/profile/bluesky.awakari.com/post/3m5bpajeqq62z", "content": "", "creation_timestamp": "2025-11-10T13:13:44.981221Z"}, {"uuid": "933a4ccc-4c0c-4149-926c-a80c8f099f56", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "seen", "source": "https://bsky.app/profile/linux.activitypub.awakari.com.ap.brid.gy/post/3m5bpahdgllr2", "content": "", "creation_timestamp": "2025-11-10T13:13:47.698895Z"}, {"uuid": "77840723-1ba5-46d3-8b65-601d1888e6ff", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "seen", "source": "https://bsky.app/profile/bluesky.awakari.com/post/3mc6s6jzsvc2h", "content": "", "creation_timestamp": "2026-01-12T00:34:18.574961Z"}, {"uuid": "e023486e-a90d-4a2c-ae5a-5262bcb914ca", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40308", "type": "seen", "source": "https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0316/", "content": "", "creation_timestamp": "2026-03-19T00:00:00.000000Z"}, {"uuid": "f0150914-7488-4979-b8eb-c2efeef83798", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "seen", "source": "Telegram/tekSf9DesmcKO4l7eOnKzE6eB5F-0xU9pnOpI7ixeynUA5uJ", "content": "", "creation_timestamp": "2025-09-19T03:28:55.000000Z"}, {"uuid": "8a6f08fd-c06e-4bfd-b060-2caa9bfb44ef", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2025-40300", "type": "published-proof-of-concept", "source": "https://t.me/true_secator/7421", "content": "\u0413\u0440\u0443\u043f\u043f\u0430 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0438\u0437 \u0428\u0432\u0435\u0439\u0446\u0430\u0440\u0441\u043a\u043e\u0439 \u0432\u044b\u0441\u0448\u0435\u0439 \u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0448\u043a\u043e\u043b\u044b \u0426\u044e\u0440\u0438\u0445\u0430 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0430\u043b\u0430 \u043d\u043e\u0432\u0443\u044e \u043f\u043e\u0434\u043e\u0431\u043d\u0443\u044e Spectre \u0430\u0442\u0430\u043a\u0443, \u043f\u043e\u043b\u0443\u0447\u0438\u0432\u0448\u0443\u044e \u043d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 VMScape.\n\n\u041e\u043d\u0430 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u043e\u0439 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0439 \u043c\u0430\u0448\u0438\u043d\u0435 (\u0412\u041c) \u0438\u0437\u0432\u043b\u0435\u043a\u0430\u0442\u044c \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u043a\u043b\u044e\u0447\u0438 \u0438\u0437 \u043d\u0435\u043c\u043e\u0434\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0430 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 QEMU, \u0440\u0430\u0431\u043e\u0442\u0430\u044e\u0449\u0435\u0433\u043e \u043d\u0430 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u0445 AMD \u0438\u043b\u0438 Intel.\n\n\u0410\u0442\u0430\u043a\u0430 \u043d\u0430\u0440\u0443\u0448\u0430\u0435\u0442 \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u044e \u043c\u0435\u0436\u0434\u0443 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u043c\u0438 \u043c\u0430\u0448\u0438\u043d\u0430\u043c\u0438 \u0438 \u043e\u0431\u043b\u0430\u0447\u043d\u044b\u043c \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u043e\u043c, \u043e\u0431\u0445\u043e\u0434\u044f \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430 \u0437\u0430\u0449\u0438\u0442\u044b \u043e\u0442 Spectre \u0438 \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u044f \u0443\u0433\u0440\u043e\u0437\u0443 \u0443\u0442\u0435\u0447\u043a\u0438 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u0443\u0442\u0435\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0441\u043f\u0435\u043a\u0443\u043b\u044f\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f.\n\n\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u043f\u043e\u0434\u0447\u0435\u0440\u043a\u0438\u0432\u0430\u044e\u0442, \u0447\u0442\u043e VMScape \u043d\u0435 \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u0432\u0437\u043b\u043e\u043c\u0430 \u0445\u043e\u0441\u0442\u0430 \u0438 \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u043d\u0430 \u043d\u0435\u043c\u043e\u0434\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c \u041f\u041e \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441 \u0432\u043a\u043b\u044e\u0447\u0435\u043d\u043d\u044b\u043c\u0438 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u043c\u0435\u0440\u0430\u043c\u0438 \u0437\u0430\u0449\u0438\u0442\u044b \u043d\u0430 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0438.\n\n\u0417\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a \u043c\u043e\u0436\u0435\u0442 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0438\u0442\u044c \u0442\u0430\u043a\u0443\u044e \u0430\u0442\u0430\u043a\u0443 \u0432 \u043e\u0442\u043d\u043e\u0448\u0435\u043d\u0438\u0438 \u043e\u0431\u043b\u0430\u0447\u043d\u043e\u0433\u043e \u043f\u0440\u043e\u0432\u0430\u0439\u0434\u0435\u0440\u0430, \u0434\u043b\u044f \u0447\u0435\u0433\u043e \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0431\u0443\u0434\u0435\u0442 \u043f\u0440\u043e\u0441\u0442\u043e \u0430\u0440\u0435\u043d\u0434\u043e\u0432\u0430\u0442\u044c \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u0443\u044e \u043c\u0430\u0448\u0438\u043d\u0443 \u0434\u043b\u044f \u043a\u0440\u0430\u0436\u0438 \u0441\u0435\u043a\u0440\u0435\u0442\u043e\u0432 \u0438\u0437 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 \u0438\u043b\u0438 \u0434\u0440\u0443\u0433\u0438\u0445 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0445 \u043c\u0430\u0448\u0438\u043d.\n\n\u041a\u0430\u043a \u043e\u0442\u043c\u0435\u0447\u0430\u044e\u0442 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438, \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0435\u043d\u043d\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u0435\u0442 \u0432\u0441\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u044b AMD \u043e\u0442 Zen 1 \u0434\u043e Zen 5, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u044b Intel Coffee Lake. \u0411\u043e\u043b\u0435\u0435 \u043d\u043e\u0432\u044b\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u044b, Raptor Cove \u0438 Gracemont, \u0432\u043b\u0438\u044f\u043d\u0438\u044e \u043e\u0448\u0438\u0431\u043a\u0438 \u043d\u0435 \u043f\u043e\u0434\u0432\u0435\u0440\u0436\u0435\u043d\u044b.\n\n\u0421\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u044b \u0437\u0430\u0449\u0438\u0449\u0430\u044e\u0442 \u043e\u0442 \u0441\u043f\u0435\u043a\u0443\u043b\u044f\u0442\u0438\u0432\u043d\u044b\u0445 \u0430\u0442\u0430\u043a, \u0440\u0430\u0441\u0448\u0438\u0440\u044f\u044f \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u044e \u0434\u043e \u0431\u043b\u043e\u043a\u043e\u0432 \u043f\u0440\u0435\u0434\u0441\u043a\u0430\u0437\u0430\u043d\u0438\u044f \u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u0439 (BPU) \u043c\u0435\u0436\u0434\u0443 \u0433\u043e\u0441\u0442\u0435\u043c \u0438 \u0445\u043e\u0441\u0442\u043e\u043c, \u043d\u043e \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u043e\u0431\u043d\u0430\u0440\u0443\u0436\u0438\u043b\u0438, \u0447\u0442\u043e \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u044f \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u043d\u0435 \u0432 \u043f\u043e\u043b\u043d\u043e\u043c \u043e\u0431\u044a\u0435\u043c\u0435.\n\n\u0413\u043e\u0441\u0442\u0435\u0432\u043e\u0439 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c \u043c\u043e\u0436\u0435\u0442 \u0432\u043b\u0438\u044f\u0442\u044c \u043d\u0430 \u043a\u043e\u0441\u0432\u0435\u043d\u043d\u043e\u0435 \u043f\u0440\u043e\u0433\u043d\u043e\u0437\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u0439 \u0432 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f-\u0445\u043e\u0441\u0442\u0430 \u0431\u043b\u0430\u0433\u043e\u0434\u0430\u0440\u044f \u043e\u0431\u0449\u0438\u043c \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c BPU, \u0442\u0430\u043a\u0438\u043c \u043a\u0430\u043a BTB (Branch Target Buffer), IBP/ITA \u0438 BHB (Branch History Buffer).\n\n\u0410\u0442\u0430\u043a\u0430 \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u0430 \u043d\u0430 QEMU - \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442 \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u043e\u0433\u043e \u0440\u0435\u0436\u0438\u043c\u0430, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0430\u0435\u0442 \u0433\u043e\u0441\u0442\u0435\u0432\u0443\u044e \u043f\u0430\u043c\u044f\u0442\u044c \u0432 \u0441\u0432\u043e\u0435 \u0430\u0434\u0440\u0435\u0441\u043d\u043e\u0435 \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u043e, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044f \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043a\u0430\u043d\u0430\u043b \u043a\u044d\u0448\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f FLUSH+RELOAD.\n\n\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043b\u0438 Spectre-BTI (Branch Target Injection), \u0432\u0432\u0435\u0434\u044f \u0432 \u0437\u0430\u0431\u043b\u0443\u0436\u0434\u0435\u043d\u0438\u0435 \u0446\u0435\u043b\u0435\u0432\u043e\u0439 \u043a\u043e\u0441\u0432\u0435\u043d\u043d\u044b\u0439 \u043f\u0435\u0440\u0435\u0445\u043e\u0434 \u0432 QEMU, \u0447\u0442\u043e\u0431\u044b \u043e\u043d \u0441\u043f\u0435\u043a\u0443\u043b\u044f\u0442\u0438\u0432\u043d\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u043b \u0433\u0430\u0434\u0436\u0435\u0442 \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u044f, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0441\u043b\u0438\u0432\u0430\u0435\u0442 \u0441\u0435\u043a\u0440\u0435\u0442\u043d\u044b\u0435 \u0434\u0430\u043d\u043d\u044b\u0435 \u0432 \u043e\u0431\u0449\u0438\u0439 \u0431\u0443\u0444\u0435\u0440 \u043f\u0435\u0440\u0435\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438.\n\n\u0414\u043b\u044f \u0440\u0430\u0441\u0448\u0438\u0440\u0435\u043d\u0438\u044f \u043e\u043a\u043d\u0430 \u0441\u043f\u0435\u043a\u0443\u043b\u044f\u0442\u0438\u0432\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0443 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u0443\u0434\u0430\u043b\u0438\u0442\u044c \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u0437\u0430\u043f\u0438\u0441\u0438 \u043a\u044d\u0448\u0430 \u0438\u0437 \u0433\u043e\u0441\u0442\u0435\u0432\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b, \u0441\u043e\u0437\u0434\u0430\u0432\u0430\u044f \u043d\u0430\u0431\u043e\u0440\u044b \u0432\u044b\u0442\u0435\u0441\u043d\u0435\u043d\u0438\u044f, \u043d\u0430\u0446\u0435\u043b\u0435\u043d\u043d\u044b\u0435 \u043d\u0430 \u043a\u044d\u0448 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u0443\u0440\u043e\u0432\u043d\u044f (LLC) \u043d\u0430 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u0445 AMD Zen 4.\n\n\u0424\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 ASLR \u043e\u0431\u0445\u043e\u0434\u0438\u0442\u0441\u044f \u043f\u0443\u0442\u0435\u043c \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043d\u0430 \u043f\u0440\u0435\u0434\u043c\u0435\u0442 \u043a\u043e\u043b\u043b\u0438\u0437\u0438\u0439 \u0432\u0435\u0442\u0432\u043b\u0435\u043d\u0438\u0439 \u0434\u043b\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043c\u0435\u0441\u0442\u043e\u043d\u0430\u0445\u043e\u0436\u0434\u0435\u043d\u0438\u044f \u0433\u0430\u0434\u0436\u0435\u0442\u0430-\u0436\u0435\u0440\u0442\u0432\u044b \u0438 \u043f\u043e\u0434\u0431\u043e\u0440\u0430 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0430\u0434\u0440\u0435\u0441\u0430 \u0431\u0443\u0444\u0435\u0440\u0430 \u043f\u0435\u0440\u0435\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438.\n\n\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u043f\u0440\u043e\u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u043b\u0438, \u0447\u0442\u043e VMScape \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0432\u0430\u0435\u0442 \u0443\u0442\u0435\u0447\u043a\u0443 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u0430\u043c\u044f\u0442\u0438 \u0438\u0437 QEMU \u0441\u043e \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u044c\u044e 32 \u0431\u0430\u0439\u0442\u0430 \u0432 \u0441\u0435\u043a\u0443\u043d\u0434\u0443 \u0441 \u0442\u043e\u0447\u043d\u043e\u0441\u0442\u044c\u044e \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u0431\u0430\u0439\u0442\u043e\u0432 98,7% \u0438 \u043e\u0431\u0449\u0435\u0439 \u0443\u0441\u043f\u0435\u0448\u043d\u043e\u0441\u0442\u044c\u044e \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430 43%.\n\n\u041f\u0440\u0438 \u0442\u0430\u043a\u043e\u0439 \u0441\u043a\u043e\u0440\u043e\u0441\u0442\u0438 \u0443\u0442\u0435\u0447\u043a\u0430 \u0441\u0435\u043a\u0440\u0435\u0442\u043d\u043e\u0433\u043e \u0444\u0430\u0439\u043b\u0430 \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u043c 4 \u041a\u0411, \u043d\u0430\u043f\u0440\u0438\u043c\u0435\u0440, \u043a\u043b\u044e\u0447\u0430 \u0448\u0438\u0444\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0438\u0441\u043a\u0430, \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u0437\u0430 128 \u0441\u0435\u043a\u0443\u043d\u0434. \u041e\u0431\u0449\u0435\u0435 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