{
  "schema_version": "1.6.2",
  "id": "MGASA-2017-0388",
  "published": "2017-10-24T20:09:45Z",
  "modified": "2022-02-17T18:21:47Z",
  "summary": "Updated kernel-tmb packages fix security vulnerabilities",
  "details": "This kernel-tmb update is based on upstream 4.4.92 and fixes at least the\nfollowing security issues:\n\nA security flaw was discovered in nl80211_set_rekey_data() function in the\nLinux kernel since v3.1-rc1 through v4.13. This function does not check\nwhether the required attributes are present in a netlink request. This\nrequest can be issued by a user with CAP_NET_ADMIN privilege and may result\nin NULL dereference and a system crash (CVE-2017-12153).\n\nLinux kernel built with the KVM visualization support (CONFIG_KVM), with\nnested visualization (nVMX) feature enabled (nested=1), is vulnerable to a\ncrash due to disabled external interrupts. As L2 guest could acce s (r/w)\nhardware CR8 register of the host(L0). In a nested visualization setup,\nL2 guest user could use this flaw to potentially crash the host(L0)\nresulting in DoS (CVE-2017-12154).\n\nThe tcp_disconnect function in net/ipv4/tcp.c in the Linux kernel before\n4.12 allows local users to cause a denial of service (__tcp_select_window\ndivide-by-zero error and system crash) by triggering a disconnect within a\ncertain tcp_recvmsg code path (CVE-2017-14106).\n\nThe atyfb_ioctl function in drivers/video/fbdev/aty/atyfb_base.c in the\nLinux kernel through 4.12.10 does not initialize a certain data structure,\nwhich allows local users to obtain sensitive information from kernel stack\nmemory by reading locations associated with padding bytes (CVE-2017-14156).\n\nIt was found that the iscsi_if_rx() function in scsi_transport_iscsi.c in\nthe Linux kernel since v2.6.24-rc1 through 4.13.2 allows local users to\ncause a denial of service (a system panic) by making a number of certain\nsyscalls by leveraging incorrect length validation in the kernel code\n(CVE-2017-14489).\n\nThe sg_ioctl function in drivers/scsi/sg.c in the Linux kernel before 4.13.4\nallows local users to obtain sensitive information from uninitialized kernel\nheap-memory locations via an SG_GET_REQUEST_TABLE ioctl call for /dev/sg0\n(CVE-2017-14991).\n\nA reachable assertion failure flaw was found in the Linux kernel built with\nKVM virtualisation(CONFIG_KVM) support with Virtual Function I/O feature\n(CONFIG_VFIO) enabled. This failure could occur if a malicious guest device\nsent a virtual interrupt (guest IRQ) with a larger (>1024) index value\n(CVE-2017-1000252).\n\nFor other upstream fixes in this update, read the referenced changelogs.\n",
  "related": [
    "CVE-2017-12153",
    "CVE-2017-12154",
    "CVE-2017-14106",
    "CVE-2017-14156",
    "CVE-2017-14489",
    "CVE-2017-14991",
    "CVE-2017-1000252"
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://advisories.mageia.org/MGASA-2017-0388.html"
    },
    {
      "type": "REPORT",
      "url": "https://bugs.mageia.org/show_bug.cgi?id=21854"
    },
    {
      "type": "REPORT",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.89"
    },
    {
      "type": "REPORT",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.90"
    },
    {
      "type": "REPORT",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.91"
    },
    {
      "type": "REPORT",
      "url": "https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.92"
    }
  ],
  "affected": [
    {
      "package": {
        "ecosystem": "Mageia:5",
        "name": "kernel-tmb",
        "purl": "pkg:rpm/mageia/kernel-tmb?arch=source&distro=mageia-5"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.4.92-1.mga5"
            }
          ]
        }
      ],
      "ecosystem_specific": {
        "section": "core"
      }
    }
  ],
  "credits": [
    {
      "name": "Mageia",
      "type": "COORDINATOR",
      "contact": [
        "https://wiki.mageia.org/en/Packages_Security_Team"
      ]
    }
  ]
}