The kernel-alt packages provide the Linux kernel version 4.x.
Security Fix(es):
* Kernel: speculative bounds check bypass store (CVE-2018-3693)
* kernel: Use-after-free due to race condition in AF_PACKET implementation (CVE-2018-18559)
* kernel: Heap overflow in mwifiex_update_bss_desc_with_ie function in marvell/mwifiex/scan.c (CVE-2019-3846)
* kernel: af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free in sockfs_setattr (CVE-2019-8912)
* kernel: Heap overflow in mwifiex_uap_parse_tail_ies function in drivers/net/wireless/marvell/mwifiex/ie.c (CVE-2019-10126)
* kernel: Count overflow in FUSE request leading to use-after-free issues. (CVE-2019-11487)
* kernel: heap overflow in mwifiex_update_vs_ie() function of Marvell WiFi driver (CVE-2019-14816)
* kernel: buffer overflow in cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c (CVE-2019-17133)
* kernel: heap overflow in mwifiex_set_uap_rates() function of Marvell Wifi Driver leading to DoS (CVE-2019-14814)
* kernel: heap-overflow in mwifiex_set_wmm_params() function of Marvell WiFi driver leading to DoS (CVE-2019-14815)
* kernel: (powerpc) incomplete Spectre-RSB mitigation leads to information exposure (CVE-2019-18660)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Bug Fix(es):
* Kernel panic on job cleanup, related to SyS_getdents64 (BZ#1702057)
* Kernel modules generated incorrectly when system is localized to non-English language (BZ#1705285)
* RHEL-Alt-7.6 - Fixup tlbie vs store ordering issue on POWER9 (BZ#1756270)
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An unprivileged, local user could use this flaw to induce kernel memory corruption on the system, leading to an unresponsive system or to a crash. Due to the nature of the flaw, privilege escalation cannot be fully ruled out. 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A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-14814, CVE-2019-14815, CVE-2019-14816)\n\nMatt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform bounds checking when handling coalesced MMIO write operations. A local attacker with write access to /dev/kvm could use this to cause a denial of service (system crash).\n(CVE-2019-14821)\n\nHui Peng and Mathias Payer discovered that the 91x Wi-Fi driver in the Linux kernel did not properly handle error conditions on initialization, leading to a double-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15504)\n\nIt was discovered that the Technisat DVB-S/S2 USB device driver in the Linux kernel contained a buffer overread. 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(CVE-2018-3693 also known as Spectre or Spectre-NG Variant 1.1)\n\nBounds checking bypass - store\n\nImpact\n\nFor products with None in the Versions known to be vulnerable column, there is no impact.\n\nF5 continues to investigate the impact of the Spectre-NG1.1 vulnerability on our products.F5 is also monitoring developments about Spectre-NG 1.2 and awaiting evaluation by hardware vendors. F5 is focused onproviding patched releases as soon as we have fully tested and verified fixes. F5 will update this article with the most current information as soon as it is confirmed.\n\nBIG-IP\n\nFirst and foremost, there is no exposure on BIG-IP products by way ofthe data plane. All exposure is limited to the control plane (also known as the management plane).\n\nFurthermore, on the control plane, the vulnerability is exploitable only by four authorized, authenticated account roles: Administrator, Resource Administrator, Manager, and iRules Manager. You must be authorized to access the system in one of these roles to even attempt to exploit the vulnerability.\n\nThis vulnerability requires an attacker who can provideand runbinary code of their choosing on the BIG-IP platform.\n\nThese conditions severely restrict the exposure risk of BIG-IP products.\n\nFor single-tenancy products, such as astandalone BIG-IP appliance, the risk is limited to a local, authorized user using this vulnerability to read information from memory that they would not normally be able to access, exceeding their privileges. Effectively, the risk in a single-tenancy situation is that a user may be able to access kernel-space memory, instead of being limited to their own user-space.\n\nFor multi-tenancy environments, such as cloud, VE, and Virtual Clustered Multiprocessing (vCMP), the same local risk applies as with single-tenancy environments local kernel memory access. Additionally, the risk of attacks across guests exists, or attacks against the hypervisor/host. In cloud and VE environments, preventing these new attacks falls on the hypervisor/host platform, outside the scope of F5's ability to support or patch. Please contact your cloud provider or hypervisor vendor to ensure their platforms or products are protected against Spectre-NG.\n\nFor vCMP environments, F5 believes that while the Spectre-NG Variant 1.1 attackdoes offer a theoretical possibility of guest-to-guest or guest-to-host attacks, these would be very difficult to successfully conduct in the BIG-IP environment.\n\nF5 is working with our hardware component vendors to determine the scope of this vulnerability across our various generations of hardware platforms. All of the information we currently have from our vendors is represented in this Security Advisory. We are working to obtain the remaining information from our vendors and will update the security advisory as we receive new information regarding our hardware platforms.\n\nWe are also testing the fixes produced by the Linux community. We are conducting anextensive test campaign to characterize the impact of the fixes on system performance and stabilityto ensure, as best we can, a good experience for our customers. We do not want to rush the process and release fixes without a full understanding of any potential issues. Given the limited exposure, as detailed above, the complexity of the fixes, and the potential issues that we and others have seen, we believe a detailed approach is warranted and that rushing a fix could result in an impact to system stability or unacceptable performance costs. We will update this article with details of our fixes as they become available.\n\nTo determine if this vulnerability affects aplatform and the processor type each platform uses, refer to the following table.\n\nNote : In the following table, only one entry is shown for platform models that may have several variants. For example, BIG-IP 11000, BIG-IP 11050, BIG-IP 11050F, and BIG-IP 11050N are all vulnerable and included in the table as 'BIG-IP 110x0'. Some platforms may have multiple vendor processors, such as the iSeries platforms, which have one or more Intel core processors and may have a vulnerable ARM processor in one or more subsystems. F5 does not believe that ARM processors in these subsystems are accessible to attackers, unless some other code-execution vulnerability is present, but the information is being provided out of an abundance of caution.\n\nModel Processor type Vulnerable to CVE-2018-3693 Spectre-NG Variant 1.1 VIPRION B21x0 Intel Y VIPRION B2250 Intel Y VIPRION B4100 AMD Y VIPRION B4200 AMD Y VIPRION B43x0 Intel Y VIPRION B44x0 Intel Y BIG-IP 800 Intel Y** BIG-IP 1600 Intel Y** BIG-IP 3600 Intel Y** BIG-IP 3900 Intel Y** BIG-IP2xx0 Intel Y BIG-IP4xx0 Intel Y BIG-IP5xx0 Intel Y BIG-IP7xx0 Intel Y BIG-IP10xx0 Intel Y BIG-IP12xx0 Intel Y BIG-IPi2x00 Intel, ARM Y BIG-IPi4x00 Intel, ARM Y BIG-IPi5x00 Intel, ARM Y BIG-IPi7x00 Intel, ARM Y BIG-IPi10x00 Intel, ARM Y BIG-IP6400 AMD Y BIG-IP6900 AMD Y BIG-IP89x0 AMD Y BIG-IP110x0 AMD Y\n\n**Intel and AMD have not responded to requests for information relating to the specific processors used in these platforms.\nTherefore, based on their public statements and in the interests of security, F5 will proceed as if these platforms are vulnerable.\n\nNote : Platform models that have reached End of Technical Support (EoTS) will not be evaluated. For more information, refer toK4309: F5 platform lifecycle support policy.\n\nBIG-IQ and Enterprise Manager\n\nSystems with microprocessors that use speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access by way ofa side-channel analysis.\n\nTo determine if this vulnerability affects each platform and the processor type each platform uses, refer to the following table.\n\nModel Processor type Vulnerable to CVE-2018-3693 Spectre-NG Variant 1.1 BIG-IQ 7000 Intel Y Enterprise Manager 4000 Intel Y**\n\n**Intel hasnot responded to requests for information relating to the specific processors used in these platforms. Therefore, based on their public statements and in the interests of security, F5 will proceed as if these platforms are vulnerable.\n\nNote : Platform models that have reached End of Technical Support (EoTS) will not be evaluated. For more information, refer toK4309: F5 platform lifecycle support policy.\n\nTraffix\n\nSystems with microprocessors that use speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access by way of a side-channel analysis.", "cvss3": {}, "published": "2019-05-29T00:00:00", "type": "nessus", "title": "F5 Networks BIG-IP : Side-channel processor vulnerability (K54252492)", "bulletinFamily": "scanner", "cvss2": {}, "cvelist": ["CVE-2018-3693"], "modified": "2021-03-10T00:00:00", "cpe": ["cpe:/a:f5:big-ip_access_policy_manager", "cpe:/a:f5:big-ip_advanced_firewall_manager", "cpe:/a:f5:big-ip_application_acceleration_manager", "cpe:/a:f5:big-ip_application_security_manager", "cpe:/a:f5:big-ip_application_visibility_and_reporting", "cpe:/a:f5:big-ip_global_traffic_manager", "cpe:/a:f5:big-ip_link_controller", "cpe:/a:f5:big-ip_local_traffic_manager", "cpe:/a:f5:big-ip_policy_enforcement_manager", "cpe:/a:f5:big-ip_webaccelerator", "cpe:/h:f5:big-ip"], "id": "F5_BIGIP_SOL54252492.NASL", "href": "https://www.tenable.com/plugins/nessus/125482", "sourceData": "#\n# (C) Tenable Network Security, Inc.\n#\n# The descriptive text and package checks in this plugin were\n# extracted from F5 Networks BIG-IP Solution K54252492.\n#\n# The text description of this plugin is (C) F5 Networks.\n#\n\ninclude(\"compat.inc\");\n\nif (description)\n{\n script_id(125482);\n script_version(\"1.3\");\n script_set_attribute(attribute:\"plugin_modification_date\", value:\"2021/03/10\");\n\n script_cve_id(\"CVE-2018-3693\");\n\n script_name(english:\"F5 Networks BIG-IP : Side-channel processor vulnerability (K54252492)\");\n script_summary(english:\"Checks the BIG-IP version.\");\n\n script_set_attribute(\n attribute:\"synopsis\",\n value:\"The remote device is missing a vendor-supplied security patch.\"\n );\n script_set_attribute(\n attribute:\"description\",\n value:\n\"Systems with microprocessors utilizing speculative execution and\nbranch prediction may allow unauthorized disclosure of information to\nan attacker with local user access via a speculative buffer overflow\nand side-channel analysis. (CVE-2018-3693 also known as Spectre or\nSpectre-NG Variant 1.1)\n\nBounds checking bypass - store\n\nImpact\n\nFor products with None in the Versions known to be vulnerable column,\nthere is no impact.\n\nF5 continues to investigate the impact of the Spectre-NG1.1\nvulnerability on our products.F5 is also monitoring developments about\nSpectre-NG 1.2 and awaiting evaluation by hardware vendors. F5 is\nfocused onproviding patched releases as soon as we have fully tested\nand verified fixes. F5 will update this article with the most current\ninformation as soon as it is confirmed.\n\nBIG-IP\n\nFirst and foremost, there is no exposure on BIG-IP products by way\nofthe data plane. All exposure is limited to the control plane (also\nknown as the management plane).\n\nFurthermore, on the control plane, the vulnerability is exploitable\nonly by four authorized, authenticated account roles: Administrator,\nResource Administrator, Manager, and iRules Manager. You must be\nauthorized to access the system in one of these roles to even attempt\nto exploit the vulnerability.\n\nThis vulnerability requires an attacker who can provideand runbinary\ncode of their choosing on the BIG-IP platform.\n\nThese conditions severely restrict the exposure risk of BIG-IP\nproducts.\n\nFor single-tenancy products, such as astandalone BIG-IP appliance, the\nrisk is limited to a local, authorized user using this vulnerability\nto read information from memory that they would not normally be able\nto access, exceeding their privileges. Effectively, the risk in a\nsingle-tenancy situation is that a user may be able to access\nkernel-space memory, instead of being limited to their own user-space.\n\nFor multi-tenancy environments, such as cloud, VE, and Virtual\nClustered Multiprocessing (vCMP), the same local risk applies as with\nsingle-tenancy environments local kernel memory access. 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get_kb_item(\"Host/local_checks_enabled\") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);\nversion = get_kb_item(\"Host/BIG-IP/version\");\nif ( ! version ) audit(AUDIT_OS_NOT, \"F5 Networks BIG-IP\");\nif ( isnull(get_kb_item(\"Host/BIG-IP/hotfix\")) ) audit(AUDIT_KB_MISSING, \"Host/BIG-IP/hotfix\");\nif ( ! get_kb_item(\"Host/BIG-IP/modules\") ) audit(AUDIT_KB_MISSING, \"Host/BIG-IP/modules\");\n\nsol = \"K54252492\";\nvmatrix = make_array();\n\nif (report_paranoia < 2) audit(AUDIT_PARANOID);\n\n# AFM\nvmatrix[\"AFM\"] = make_array();\nvmatrix[\"AFM\"][\"affected\" ] = make_list(\"14.0.0-14.1.2\",\"13.0.0-13.1.1\",\"12.1.0-12.1.4\",\"11.6.1-11.6.3\",\"11.5.1-11.5.8\",\"11.2.1\");\nvmatrix[\"AFM\"][\"unaffected\"] = make_list(\"15.0.0\",\"14.1.2.3\");\n\n# AM\nvmatrix[\"AM\"] = make_array();\nvmatrix[\"AM\"][\"affected\" ] = make_list(\"14.0.0-14.1.2\",\"13.0.0-13.1.1\",\"12.1.0-12.1.4\",\"11.6.1-11.6.3\",\"11.5.1-11.5.8\",\"11.2.1\");\nvmatrix[\"AM\"][\"unaffected\"] = make_list(\"15.0.0\",\"14.1.2.3\");\n\n# APM\nvmatrix[\"APM\"] = make_array();\nvmatrix[\"APM\"][\"affected\" ] = make_list(\"14.0.0-14.1.2\",\"13.0.0-13.1.1\",\"12.1.0-12.1.4\",\"11.6.1-11.6.3\",\"11.5.1-11.5.8\",\"11.2.1\");\nvmatrix[\"APM\"][\"unaffected\"] = make_list(\"15.0.0\",\"14.1.2.3\");\n\n# ASM\nvmatrix[\"ASM\"] = make_array();\nvmatrix[\"ASM\"][\"affected\" ] = make_list(\"14.0.0-14.1.2\",\"13.0.0-13.1.1\",\"12.1.0-12.1.4\",\"11.6.1-11.6.3\",\"11.5.1-11.5.8\",\"11.2.1\");\nvmatrix[\"ASM\"][\"unaffected\"] = make_list(\"15.0.0\",\"14.1.2.3\");\n\n# AVR\nvmatrix[\"AVR\"] = make_array();\nvmatrix[\"AVR\"][\"affected\" ] = make_list(\"14.0.0-14.1.2\",\"13.0.0-13.1.1\",\"12.1.0-12.1.4\",\"11.6.1-11.6.3\",\"11.5.1-11.5.8\",\"11.2.1\");\nvmatrix[\"AVR\"][\"unaffected\"] = make_list(\"15.0.0\",\"14.1.2.3\");\n\n# GTM\nvmatrix[\"GTM\"] = make_array();\nvmatrix[\"GTM\"][\"affected\" ] = make_list(\"14.0.0-14.1.2\",\"13.0.0-13.1.1\",\"12.1.0-12.1.4\",\"11.6.1-11.6.3\",\"11.5.1-11.5.8\",\"11.2.1\");\nvmatrix[\"GTM\"][\"unaffected\"] = make_list(\"15.0.0\",\"14.1.2.3\");\n\n# LC\nvmatrix[\"LC\"] = make_array();\nvmatrix[\"LC\"][\"affected\" ] = make_list(\"14.0.0-14.1.2\",\"13.0.0-13.1.1\",\"12.1.0-12.1.4\",\"11.6.1-11.6.3\",\"11.5.1-11.5.8\",\"11.2.1\");\nvmatrix[\"LC\"][\"unaffected\"] = make_list(\"15.0.0\",\"14.1.2.3\");\n\n# LTM\nvmatrix[\"LTM\"] = make_array();\nvmatrix[\"LTM\"][\"affected\" ] = make_list(\"14.0.0-14.1.2\",\"13.0.0-13.1.1\",\"12.1.0-12.1.4\",\"11.6.1-11.6.3\",\"11.5.1-11.5.8\",\"11.2.1\");\nvmatrix[\"LTM\"][\"unaffected\"] = make_list(\"15.0.0\",\"14.1.2.3\");\n\n# PEM\nvmatrix[\"PEM\"] = make_array();\nvmatrix[\"PEM\"][\"affected\" ] = make_list(\"14.0.0-14.1.2\",\"13.0.0-13.1.1\",\"12.1.0-12.1.4\",\"11.6.1-11.6.3\",\"11.5.1-11.5.8\",\"11.2.1\");\nvmatrix[\"PEM\"][\"unaffected\"] = make_list(\"15.0.0\",\"14.1.2.3\");\n\n# WAM\nvmatrix[\"WAM\"] = make_array();\nvmatrix[\"WAM\"][\"affected\" ] = make_list(\"14.0.0-14.1.2\",\"13.0.0-13.1.1\",\"12.1.0-12.1.4\",\"11.6.1-11.6.3\",\"11.5.1-11.5.8\",\"11.2.1\");\nvmatrix[\"WAM\"][\"unaffected\"] = make_list(\"15.0.0\",\"14.1.2.3\");\n\n\nif (bigip_is_affected(vmatrix:vmatrix, sol:sol))\n{\n if (report_verbosity > 0) security_warning(port:0, extra:bigip_report_get());\n else security_warning(0);\n exit(0);\n}\nelse\n{\n tested = bigip_get_tested_modules();\n audit_extra = \"For BIG-IP module(s) \" + tested + \",\";\n if (tested) audit(AUDIT_INST_VER_NOT_VULN, audit_extra, version);\n else audit(AUDIT_HOST_NOT, \"running any of the affected modules\");\n}\n", "cvss": {"score": 4.7, "vector": "AV:L/AC:M/Au:N/C:C/I:N/A:N"}}, {"lastseen": "2023-02-05T15:19:33", "description": "It was discovered that the RSI 91x Wi-Fi driver in the Linux kernel did not did not handle detach operations correctly, leading to a use-after-free vulnerability. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-21008)\n\nWen Huang discovered that the Marvell Wi-Fi device driver in the Linux kernel did not properly perform bounds checking, leading to a heap overflow. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-14814, CVE-2019-14815, CVE-2019-14816)\n\nMatt Delco discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform bounds checking when handling coalesced MMIO write operations. A local attacker with write access to /dev/kvm could use this to cause a denial of service (system crash).\n(CVE-2019-14821)\n\nHui Peng and Mathias Payer discovered that the USB audio driver for the Linux kernel did not properly validate device meta data. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15117)\n\nHui Peng and Mathias Payer discovered that the USB audio driver for the Linux kernel improperly performed recursion while handling device meta data. A physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2019-15118)\n\nIt was discovered that the Technisat DVB-S/S2 USB device driver in the Linux kernel contained a buffer overread. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information. (CVE-2019-15505)\n\nBrad Spengler discovered that a Spectre mitigation was improperly implemented in the ptrace susbsystem of the Linux kernel. A local attacker could possibly use this to expose sensitive information.\n(CVE-2019-15902)\n\nIt was discovered that the SMB networking file system implementation in the Linux kernel contained a buffer overread. An attacker could use this to expose sensitive information (kernel memory). (CVE-2019-15918).\n\nNote that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. 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(RHSA-2020:0174) Important: kernel-alt security and bug fix update
