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{"amd": [{"lastseen": "2023-03-17T18:24:54", "description": "### Summary \n\nAMD internally discovered a potential vulnerability where certain AMD processors may speculatively execute instructions at an incorrect return site after an SMT mode switch that may potentially lead to information disclosure. AMD believes that due to existing mitigations applied to address other speculation-based issues, theoretical avenues for potential exploit of CVE-2022-27672** **may be limited only to select virtualization environments where a virtual machine is given special privileges. As of this notice, AMD is not aware of any actual real-world exploits based on this behavior.\n\nCVE-2022-27672\n\nWhen SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure.\n\n### Affected Products \n\n_Desktop_\n\nAMD Athlon\u2122 X4 Processor\n\nAMD Ryzen\u2122 Threadripper\u2122 PRO Processor\n\n2nd Gen AMD Ryzen\u2122 Threadripper\u2122 Processors\n\n3rd Gen AMD Ryzen\u2122 Threadripper\u2122 Processors\n\n7th Generation AMD A-Series APUs\n\nAMD Ryzen\u2122 2000 Series Desktop Processors\n\nAMD Ryzen\u2122 3000 Series Desktop Processors\n\nAMD Ryzen\u2122 4000 Series Desktop Processors with Radeon\u2122 Graphics\n\n_Mobile_\n\nAMD Ryzen\u2122 2000 Series Mobile Processor \n\nAMD Athlon\u2122 3000 Series Mobile Processors with Radeon\u2122 Graphics \n\nAMD Ryzen\u2122 3000 Series Mobile Processors or 2nd Gen AMD Ryzen\u2122 Mobile processors with Radeon\u2122 Graphics\n\nAMD Ryzen\u2122 4000 Series Mobile processors with Radeon\u2122 Graphics\n\nAMD Ryzen\u2122 5000 Series Mobile Processors with Radeon\u2122 Graphics\n\n_Chromebook_\n\nAMD Athlon\u2122 Mobile Processors with Radeon\u2122 Graphics \n\n_Server_\n\n1st Gen AMD EPYC\u2122 Processors\n\n2nd Gen AMD EPYC\u2122 Processors\n\n### Mitigation\n\nMitigations may be specific to a respective OS/Hypervisor solution. Not all Hypervisor or OS vendors may be impacted. If applicable, an OS update to address this CVE may be available. AMD recommends that you contact your OS partners for details.\n\nAMD recommends OS/Hypervisor developers review code paths that can result in a processor entering an idle state (e.g., HLT/MWAIT/IO C-state). If required, AMD recommends developers to consider the following mitigations:\n\n 1. Fill the RAP prior to entering the idle state\n\nBefore entering the idle processor state, software can execute a sequence of 32 CALL instructions with non-0 displacement to fill the RAP with \u2018safe\u2019 speculation targets. \n\n 2. Prevent unprivileged transitions to idle state\n\nHVs can prevent guest VMs from directly entering processor idle states by intercepting the HLT, MWAIT, and IN instructions. See APM Volume 2 [1] appendix B for details.\n\n[Refer to Glossary for explanation of terms](<https://www.amd.com/system/files/documents/glossary-of-terms.pdf>)\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-02-14T00:00:00", "type": "amd", "title": "Cross-Thread Return Address Predictions", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2022-27672"], "modified": "2023-02-14T00:00:00", "id": "AMD-SB-1045", "href": "https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1045", "cvss": {"score": 0.0, "vector": "NONE"}}], "veracode": [{"lastseen": "2023-03-12T06:39:34", "description": "xen is vulnerable to Information Disclosure. AMD processors may speculatively execute instruction from a sibling thread after a SMT mode switch leading to information disclosure.\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-02-24T07:35:49", "type": "veracode", "title": "Information Disclosure", "bulletinFamily": "software", "cvss2": {}, "cvelist": ["CVE-2022-27672"], "modified": "2023-03-10T06:44:39", "id": "VERACODE:39398", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-39398/summary", "cvss": {"score": 0.0, "vector": "NONE"}}], "nessus": [{"lastseen": "2023-03-15T04:39:54", "description": "The remote SUSE Linux SLED15 / SLES15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2023:0692-1 advisory.\n\n - When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure. 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'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'kernel-tools-5.10.173-154.642.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'kernel-tools-5.10.173-154.642.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'kernel-tools-debuginfo-5.10.173-154.642.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'kernel-tools-debuginfo-5.10.173-154.642.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'kernel-tools-devel-5.10.173-154.642.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'kernel-tools-devel-5.10.173-154.642.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'perf-5.10.173-154.642.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'perf-5.10.173-154.642.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'perf-debuginfo-5.10.173-154.642.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'perf-debuginfo-5.10.173-154.642.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'python-perf-5.10.173-154.642.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'python-perf-5.10.173-154.642.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'python-perf-debuginfo-5.10.173-154.642.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'},\n {'reference':'python-perf-debuginfo-5.10.173-154.642.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.10'}\n];\n\nvar flag = 0;\nforeach var package_array ( pkgs ) {\n var reference = NULL;\n var _release = NULL;\n var sp = NULL;\n var _cpu = NULL;\n var el_string = NULL;\n var rpm_spec_vers_cmp = NULL;\n var epoch = NULL;\n var allowmaj = NULL;\n var exists_check = NULL;\n if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];\n if (!empty_or_null(package_array['release'])) _release = package_array['release'];\n if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];\n if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];\n if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];\n if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];\n if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];\n if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];\n if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];\n if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {\n if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) flag++;\n }\n}\n\nif (flag)\n{\n security_report_v4(\n port : 0,\n severity : SECURITY_WARNING,\n extra : rpm_report_get()\n );\n exit(0);\n}\nelse\n{\n var tested = pkg_tests_get();\n if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);\n else audit(AUDIT_PACKAGE_NOT_INSTALLED, \"bpftool / bpftool-debuginfo / kernel / etc\");\n}", "cvss": {"score": 0.0, "vector": "NONE"}}], "ubuntucve": [{"lastseen": "2023-03-17T13:10:13", "description": "When SMT is enabled, certain AMD processors may speculatively execute\ninstructions using a target from the sibling thread after an SMT mode\nswitch potentially resulting in information disclosure.\n\n#### Notes\n\nAuthor| Note \n---|--- \n[mdeslaur](<https://launchpad.net/~mdeslaur>) | hypervisor packages are in universe. For issues in the hypervisor, add appropriate tags to each section, ex: Tags_xen: universe-binary\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-03-01T00:00:00", "type": "ubuntucve", "title": "CVE-2022-27672", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2022-27672"], "modified": "2023-03-01T00:00:00", "id": "UB:CVE-2022-27672", "href": "https://ubuntu.com/security/CVE-2022-27672", "cvss": {"score": 0.0, "vector": "NONE"}}], "fedora": [{"lastseen": "2023-03-10T10:34:05", "description": "This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor ", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-02-20T01:20:05", "type": "fedora", "title": "[SECURITY] Fedora 37 Update: xen-4.16.3-2.fc37", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2022-27672"], "modified": "2023-02-20T01:20:05", "id": "FEDORA:08664304CB8B", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/MGOIZDZWAGH6T5VV67ZKQN4KZPS2H2PS/", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2023-03-10T10:34:05", "description": "This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor ", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-03-06T00:54:34", "type": "fedora", "title": "[SECURITY] Fedora 36 Update: xen-4.16.3-3.fc36", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2022-27672"], "modified": "2023-03-06T00:54:34", "id": "FEDORA:82921304C6F7", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/BEVTCEVSKET2DJXJ6H3EDI46KTE3DP5Z/", "cvss": {"score": 0.0, "vector": "NONE"}}], "xen": [{"lastseen": "2023-03-10T08:20:25", "description": "#### ISSUE DESCRIPTION\nIt has been discovered that on some AMD CPUs, the RAS (Return Address Stack, also called RAP - Return Address Predictor - in some AMD documentation, and RSB - Return Stack Buffer - in Intel terminology) is dynamically partitioned between non-idle threads. This allows an attacker to control speculative execution on the adjacent thread.\nFor more details, see: <a href=\"https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1045\">https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1045</a>\n#### IMPACT\nAn attacker might be able to infer the contents of arbitrary host memory, including memory assigned to other guests.\n#### VULNERABLE SYSTEMS\nOnly AMD CPUs are known to be potentially vulnerable. CPUs from other hardware vendors are not believed to be impacted.\nOnly the Zen1 and Zen2 microarchitectures are believed to be potentially vulnerable. Other microarchitectures are not believed to be vulnerable.\nOnly configurations with SMT activate are potentially vulnerable. If SMT is disabled by the firmware, or at runtime with `smt=0` on Xen's command line, then the platform is not vulnerable.\nXen 4.16 and later contains an optimisation, specifically:\n c/s afab477fba3b (\"x86/spec-ctrl: Skip RSB overwriting when safe to do so\")\nwhich in combination with disabling 32bit PV guests (either at compile time with CONFIG_PV32=n, or at runtime with `pv=no-32` on the command line) renders Xen vulnerable to attack from PV guests.\nNote: multiple downstreams are known to have backported this optimisation to older versions of Xen. Consult your software vendor documentation.\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-02-14T18:02:00", "type": "xen", "title": "x86: Cross-Thread Return Address Predictions", "bulletinFamily": "software", "cvss2": {}, "cvelist": ["CVE-2022-27672"], "modified": "2023-02-16T17:42:00", "id": "XSA-426", "href": "http://xenbits.xen.org/xsa/advisory-426.html", "cvss": {"score": 0.0, "vector": "NONE"}}], "debiancve": [{"lastseen": "2023-03-19T22:09:59", "description": "When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure.", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-03-01T08:15:00", "type": "debiancve", "title": "CVE-2022-27672", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2022-27672"], "modified": "2023-03-01T08:15:00", "id": "DEBIANCVE:CVE-2022-27672", "href": "https://security-tracker.debian.org/tracker/CVE-2022-27672", "cvss": {"score": 0.0, "vector": "NONE"}}], "redhatcve": [{"lastseen": "2023-03-24T20:11:57", "description": "A flaw was found in HW. When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch, potentially resulting in information disclosure.\n#### Mitigation\n\nThe current mitigations for spectre V4 should mitigate this flaw, no additional steps will need to be taken. \n\n", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-03-02T12:29:59", "type": "redhatcve", "title": "CVE-2022-27672", "bulletinFamily": "info", "cvss2": {}, "cvelist": ["CVE-2022-27672"], "modified": "2023-03-24T18:06:10", "id": "RH:CVE-2022-27672", "href": "https://access.redhat.com/security/cve/cve-2022-27672", "cvss": {"score": 0.0, "vector": "NONE"}}], "cve": [{"lastseen": "2023-03-10T07:08:47", "description": "When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure.", "cvss3": {"exploitabilityScore": 1.0, "cvssV3": {"baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "attackComplexity": "HIGH", "scope": "UNCHANGED", "attackVector": "LOCAL", "availabilityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "baseScore": 4.7, "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 3.6}, "published": "2023-03-01T08:15:00", "type": "cve", "title": "CVE-2022-27672", "cwe": ["NVD-CWE-noinfo"], "bulletinFamily": "NVD", "cvss2": {}, "cvelist": ["CVE-2022-27672"], "modified": "2023-03-10T01:55:00", "cpe": 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"cpe:/o:amd:athlon_x4_950_firmware:-", "cpe:/o:amd:ryzen_5_4600ge_firmware:-", "cpe:/o:amd:a10-9630p_firmware:-", "cpe:/o:amd:epyc_7252_firmware:-", "cpe:/o:amd:ryzen_threadripper_3970x_firmware:-", "cpe:/o:amd:epyc_7642_firmware:-", "cpe:/o:amd:athlon_silver_3050e_firmware:-", "cpe:/o:amd:athlon_gold_3150c_firmware:-", "cpe:/o:amd:epyc_7662_firmware:-", "cpe:/o:amd:ryzen_3_3300u_firmware:-", "cpe:/o:amd:ryzen_7_2700u_firmware:-", "cpe:/o:amd:ryzen_5_4500u_firmware:-", "cpe:/o:amd:ryzen_9_3900_firmware:-", "cpe:/o:amd:athlon_x4_870k_firmware:-", "cpe:/o:amd:athlon_silver_7120u_firmware:-", "cpe:/o:amd:epyc_embedded_3551_firmware:-", "cpe:/o:amd:ryzen_9_3950x_firmware:-", "cpe:/o:amd:epyc_embedded_7261_firmware:-", "cpe:/o:amd:ryzen_5_3550h_firmware:-"], "id": "CVE-2022-27672", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-27672", "cvss": {"score": 0.0, "vector": "NONE"}, "cpe23": ["cpe:2.3:o:amd:ryzen_5_2600_firmware:-:*:*:*:*:*:*:*", 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L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine (CVE-2022-2196). A double-free memory flaw was found in the Linux kernel. The Intel GVT-g graphics driver triggers VGA card system resource overload, causing a fail in the intel_gvt_dma_map_guest_page function. This issue could allow a local user to crash the system (CVE-2022-3707). A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service (CVE-2022-4129). A use-after-free flaw caused by a race among the superblock operations in the gadgetfs Linux driver was found. It could be triggered by yanking out a device that is running the gadgetfs side (CVE-2022-4382). A flaw NULL Pointer Dereference in the Linux kernel NTFS3 driver function attr_punch_hole() was found. A local user could use this flaw to crash the system (CVE-2022-4842). When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure (CVE-2022-27672). A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to the root user via arbitrary code execution (CVE-2023-0179). A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network subcomponent in the Linux kernel. This flaw causes the system to crash (CVE-2023-0394). A memory corruption flaw was found in the Linux kernel\u2019s human interface device (HID) subsystem in how a user inserts a malicious USB device. This flaw allows a local user to crash or potentially escalate their privileges on the system (CVE-2023-1073). A memory leak flaw was found in the Linux kernel's Stream Control Transmission Protocol. This issue may occur when a user starts a malicious networking service and someone connects to this service. This could allow a local user to starve resources, causing a denial of service (CVE-2023-1074). rds: rds_rm_zerocopy_callback() use list_first_entry() (CVE-2023-1078). An integer overflow flaw was found in the Linux kernel\u2019s wireless RNDIS USB device driver in how a user installs a malicious USB device. This flaw allows a local user to crash or potentially escalate their privileges on the system (CVE-2023-23559). There is a double free in net/mpls/af_mpls.c upon an allocation failure (for registering the sysctl table under a new location) during the renaming of a device (CVE-2023-26545). For other upstream fixes in this update, see the referenced changelogs. \n", "cvss3": {"exploitabilityScore": 2.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 6.0}, "published": "2023-03-11T19:00:39", "type": "mageia", "title": "Updated kernel packages fix security vulnerabilities\n", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2022-2196", "CVE-2022-27672", "CVE-2022-3707", "CVE-2022-4129", "CVE-2022-4382", "CVE-2022-4842", "CVE-2023-0179", "CVE-2023-0394", "CVE-2023-1073", "CVE-2023-1074", "CVE-2023-1078", "CVE-2023-23559", "CVE-2023-26545"], "modified": "2023-03-11T19:00:39", "id": "MGASA-2023-0087", "href": "https://advisories.mageia.org/MGASA-2023-0087.html", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2023-03-11T20:32:59", "description": "This kernel-linus update is based on upstream 5.15.98 and fixes atleast the following security issues: A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine (CVE-2022-2196). A double-free memory flaw was found in the Linux kernel. The Intel GVT-g graphics driver triggers VGA card system resource overload, causing a fail in the intel_gvt_dma_map_guest_page function. This issue could allow a local user to crash the system (CVE-2022-3707). A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service (CVE-2022-4129). A use-after-free flaw caused by a race among the superblock operations in the gadgetfs Linux driver was found. It could be triggered by yanking out a device that is running the gadgetfs side (CVE-2022-4382). A flaw NULL Pointer Dereference in the Linux kernel NTFS3 driver function attr_punch_hole() was found. A local user could use this flaw to crash the system (CVE-2022-4842). When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure (CVE-2022-27672). A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to the root user via arbitrary code execution (CVE-2023-0179). A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network subcomponent in the Linux kernel. This flaw causes the system to crash (CVE-2023-0394). A memory corruption flaw was found in the Linux kernel\u2019s human interface device (HID) subsystem in how a user inserts a malicious USB device. This flaw allows a local user to crash or potentially escalate their privileges on the system (CVE-2023-1073). A memory leak flaw was found in the Linux kernel's Stream Control Transmission Protocol. This issue may occur when a user starts a malicious networking service and someone connects to this service. This could allow a local user to starve resources, causing a denial of service (CVE-2023-1074). rds: rds_rm_zerocopy_callback() use list_first_entry() (CVE-2023-1078). An integer overflow flaw was found in the Linux kernel\u2019s wireless RNDIS USB device driver in how a user installs a malicious USB device. This flaw allows a local user to crash or potentially escalate their privileges on the system (CVE-2023-23559). There is a double free in net/mpls/af_mpls.c upon an allocation failure (for registering the sysctl table under a new location) during the renaming of a device (CVE-2023-26545). For other upstream fixes in this update, see the referenced changelogs. \n", "cvss3": {"exploitabilityScore": 2.0, "cvssV3": {"baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "CHANGED", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 6.0}, "published": "2023-03-11T19:00:39", "type": "mageia", "title": "Updated kernel-linus packages fix security vulnerabilities\n", "bulletinFamily": "unix", "cvss2": {}, "cvelist": ["CVE-2022-2196", "CVE-2022-27672", "CVE-2022-3707", "CVE-2022-4129", "CVE-2022-4382", "CVE-2022-4842", "CVE-2023-0179", "CVE-2023-0394", "CVE-2023-1073", "CVE-2023-1074", "CVE-2023-1078", "CVE-2023-23559", "CVE-2023-26545"], "modified": "2023-03-11T19:00:39", "id": "MGASA-2023-0088", "href": "https://advisories.mageia.org/MGASA-2023-0088.html", "cvss": {"score": 0.0, "vector": "NONE"}}]}