In binder_transaction of binder.c in the Android kernel, there is a
possible out of bounds write due to an integer overflow. This could lead to
local escalation of privilege with no additional execution privileges
needed. User interaction is needed for exploitation.
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A local attacker could use this to cause a denial of service \n(system crash) or possibly execute arbitrary code. (CVE-2019-14814, \nCVE-2019-14815, CVE-2019-14816)\n\nMatt Delco discovered that the KVM hypervisor implementation in the Linux \nkernel did not properly perform bounds checking when handling coalesced \nMMIO write operations. A local attacker with write access to /dev/kvm could \nuse this to cause a denial of service (system crash). (CVE-2019-14821)\n\nHui Peng and Mathias Payer discovered that the 91x Wi-Fi driver in the \nLinux kernel did not properly handle error conditions on initialization, \nleading to a double-free vulnerability. A physically proximate attacker \ncould use this to cause a denial of service (system crash). \n(CVE-2019-15504)\n\nIt was discovered that the Technisat DVB-S/S2 USB device driver in the \nLinux kernel contained a buffer overread. A physically proximate attacker \ncould use this to cause a denial of service (system crash) or possibly \nexpose sensitive information. (CVE-2019-15505)\n\nBrad Spengler discovered that a Spectre mitigation was improperly \nimplemented in the ptrace susbsystem of the Linux kernel. A local attacker \ncould possibly use this to expose sensitive information. (CVE-2019-15902)\n\nIt was discovered that the IPv6 RDS implementation in the Linux kernel did \nnot properly initialize fields in a data structure returned to user space. \nA local attacker could use this to expose sensitive information (kernel \nmemory). Please note that the RDS protocol is disabled via blocklist in \nUbuntu by default. (CVE-2019-16714)\n\nIt was discovered that an integer overflow existed in the Binder \nimplementation of the Linux kernel, leading to a buffer overflow. A local \nattacker could use this to escalate privileges. (CVE-2019-2181)\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2019-10-17T00:00:00", "type": "ubuntu", "title": "Linux kernel vulnerabilities", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2019-14814", "CVE-2019-14815", "CVE-2019-14816", "CVE-2019-14821", "CVE-2019-15504", "CVE-2019-15505", "CVE-2019-15902", "CVE-2019-16714", "CVE-2019-2181"], "modified": "2019-10-17T00:00:00", "id": "USN-4157-1", "href": "https://ubuntu.com/security/notices/USN-4157-1", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2023-01-26T15:44:05", "description": "## Releases\n\n * Ubuntu 18.04 LTS\n\n## Packages\n\n * linux-azure \\- Linux kernel for Microsoft Azure Cloud systems\n * linux-gcp \\- Linux kernel for Google Cloud Platform (GCP) systems\n * linux-gke-5.0 \\- Linux kernel for Google Container Engine (GKE) systems\n * linux-hwe \\- Linux hardware enablement (HWE) kernel\n\nUSN-4157-1 fixed vulnerabilities in the Linux kernel for Ubuntu 19.04. \nThis update provides the corresponding updates for the Linux \nHardware Enablement (HWE) kernel from Ubuntu 19.04 for Ubuntu \n18.04 LTS.\n\nWen Huang discovered that the Marvell Wi-Fi device driver in the Linux \nkernel did not properly perform bounds checking, leading to a heap \noverflow. A local attacker could use this to cause a denial of service \n(system crash) or possibly execute arbitrary code. (CVE-2019-14814, \nCVE-2019-14815, CVE-2019-14816)\n\nMatt Delco discovered that the KVM hypervisor implementation in the Linux \nkernel did not properly perform bounds checking when handling coalesced \nMMIO write operations. A local attacker with write access to /dev/kvm could \nuse this to cause a denial of service (system crash). (CVE-2019-14821)\n\nHui Peng and Mathias Payer discovered that the 91x Wi-Fi driver in the \nLinux kernel did not properly handle error conditions on initialization, \nleading to a double-free vulnerability. A physically proximate attacker \ncould use this to cause a denial of service (system crash). \n(CVE-2019-15504)\n\nIt was discovered that the Technisat DVB-S/S2 USB device driver in the \nLinux kernel contained a buffer overread. A physically proximate attacker \ncould use this to cause a denial of service (system crash) or possibly \nexpose sensitive information. (CVE-2019-15505)\n\nBrad Spengler discovered that a Spectre mitigation was improperly \nimplemented in the ptrace susbsystem of the Linux kernel. A local attacker \ncould possibly use this to expose sensitive information. (CVE-2019-15902)\n\nIt was discovered that the IPv6 RDS implementation in the Linux kernel did \nnot properly initialize fields in a data structure returned to user space. \nA local attacker could use this to expose sensitive information (kernel \nmemory). Please note that the RDS protocol is disabled via blocklist in \nUbuntu by default. (CVE-2019-16714)\n\nIt was discovered that an integer overflow existed in the Binder \nimplementation of the Linux kernel, leading to a buffer overflow. A local \nattacker could use this to escalate privileges. 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CVE-2019-2181
