{
  "GSD": {
    "alias": "CVE-2016-4578",
    "description": "sound/core/timer.c in the Linux kernel through 4.6 does not initialize certain r1 data structures, which allows local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface, related to the (1) snd_timer_user_ccallback and (2) snd_timer_user_tinterrupt functions.",
    "id": "GSD-2016-4578",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-4578.html",
      "https://www.debian.org/security/2016/dsa-3607",
      "https://access.redhat.com/errata/RHSA-2016:2584",
      "https://access.redhat.com/errata/RHSA-2016:2574",
      "https://ubuntu.com/security/CVE-2016-4578",
      "https://advisories.mageia.org/CVE-2016-4578.html",
      "https://linux.oracle.com/cve/CVE-2016-4578.html",
      "https://packetstormsecurity.com/files/cve/CVE-2016-4578"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2016-4578"
      ],
      "details": "sound/core/timer.c in the Linux kernel through 4.6 does not initialize certain r1 data structures, which allows local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface, related to the (1) snd_timer_user_ccallback and (2) snd_timer_user_tinterrupt functions.",
      "id": "GSD-2016-4578",
      "modified": "2023-12-13T01:21:18.385083Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2016-4578",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "sound/core/timer.c in the Linux kernel through 4.6 does not initialize certain r1 data structures, which allows local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface, related to the (1) snd_timer_user_ccallback and (2) snd_timer_user_tinterrupt functions."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "SUSE-SU-2016:1690",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html"
          },
          {
            "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4ec8cc8039a7063e24204299b462bd1383184a5",
            "refsource": "CONFIRM",
            "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4ec8cc8039a7063e24204299b462bd1383184a5"
          },
          {
            "name": "USN-3017-1",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3017-1"
          },
          {
            "name": "46529",
            "refsource": "EXPLOIT-DB",
            "url": "https://www.exploit-db.com/exploits/46529/"
          },
          {
            "name": "SUSE-SU-2016:1985",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html"
          },
          {
            "name": "USN-3017-3",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3017-3"
          },
          {
            "name": "openSUSE-SU-2016:2184",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html"
          },
          {
            "name": "USN-3018-2",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3018-2"
          },
          {
            "name": "https://github.com/torvalds/linux/commit/e4ec8cc8039a7063e24204299b462bd1383184a5",
            "refsource": "CONFIRM",
            "url": "https://github.com/torvalds/linux/commit/e4ec8cc8039a7063e24204299b462bd1383184a5"
          },
          {
            "name": "USN-3021-2",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3021-2"
          },
          {
            "name": "USN-3017-2",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3017-2"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1335215",
            "refsource": "CONFIRM",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1335215"
          },
          {
            "name": "RHSA-2016:2584",
            "refsource": "REDHAT",
            "url": "http://rhn.redhat.com/errata/RHSA-2016-2584.html"
          },
          {
            "name": "RHSA-2016:2574",
            "refsource": "REDHAT",
            "url": "http://rhn.redhat.com/errata/RHSA-2016-2574.html"
          },
          {
            "name": "USN-3019-1",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3019-1"
          },
          {
            "name": "openSUSE-SU-2016:1641",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html"
          },
          {
            "name": "DSA-3607",
            "refsource": "DEBIAN",
            "url": "http://www.debian.org/security/2016/dsa-3607"
          },
          {
            "name": "90535",
            "refsource": "BID",
            "url": "http://www.securityfocus.com/bid/90535"
          },
          {
            "name": "USN-3016-2",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3016-2"
          },
          {
            "name": "USN-3016-1",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3016-1"
          },
          {
            "name": "SUSE-SU-2016:1672",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html"
          },
          {
            "name": "USN-3021-1",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3021-1"
          },
          {
            "name": "USN-3018-1",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3018-1"
          },
          {
            "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6",
            "refsource": "CONFIRM",
            "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6"
          },
          {
            "name": "[oss-security] 20160511 Re: CVE Request: alsa: kernel information leak vulnerability in Linux sound/core/timer",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2016/05/11/5"
          },
          {
            "name": "SUSE-SU-2016:2105",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html"
          },
          {
            "name": "USN-3016-3",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3016-3"
          },
          {
            "name": "https://github.com/torvalds/linux/commit/9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6",
            "refsource": "CONFIRM",
            "url": "https://github.com/torvalds/linux/commit/9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6"
          },
          {
            "name": "USN-3016-4",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3016-4"
          },
          {
            "name": "USN-3020-1",
            "refsource": "UBUNTU",
            "url": "http://www.ubuntu.com/usn/USN-3020-1"
          },
          {
            "name": "SUSE-SU-2016:1937",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "4.6",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2016-4578"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "sound/core/timer.c in the Linux kernel through 4.6 does not initialize certain r1 data structures, which allows local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface, related to the (1) snd_timer_user_ccallback and (2) snd_timer_user_tinterrupt functions."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-200"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/torvalds/linux/commit/9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://github.com/torvalds/linux/commit/9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6"
            },
            {
              "name": "https://github.com/torvalds/linux/commit/e4ec8cc8039a7063e24204299b462bd1383184a5",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "https://github.com/torvalds/linux/commit/e4ec8cc8039a7063e24204299b462bd1383184a5"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1335215",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1335215"
            },
            {
              "name": "[oss-security] 20160511 Re: CVE Request: alsa: kernel information leak vulnerability in Linux sound/core/timer",
              "refsource": "MLIST",
              "tags": [
                "Mailing List"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2016/05/11/5"
            },
            {
              "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4ec8cc8039a7063e24204299b462bd1383184a5",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4ec8cc8039a7063e24204299b462bd1383184a5"
            },
            {
              "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6",
              "refsource": "CONFIRM",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6"
            },
            {
              "name": "USN-3017-2",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3017-2"
            },
            {
              "name": "USN-3018-2",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3018-2"
            },
            {
              "name": "USN-3016-4",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3016-4"
            },
            {
              "name": "USN-3016-1",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3016-1"
            },
            {
              "name": "USN-3016-2",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3016-2"
            },
            {
              "name": "USN-3016-3",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3016-3"
            },
            {
              "name": "USN-3018-1",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3018-1"
            },
            {
              "name": "USN-3019-1",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3019-1"
            },
            {
              "name": "USN-3017-3",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3017-3"
            },
            {
              "name": "USN-3020-1",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3020-1"
            },
            {
              "name": "USN-3017-1",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3017-1"
            },
            {
              "name": "USN-3021-1",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3021-1"
            },
            {
              "name": "USN-3021-2",
              "refsource": "UBUNTU",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.ubuntu.com/usn/USN-3021-2"
            },
            {
              "name": "SUSE-SU-2016:1672",
              "refsource": "SUSE",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html"
            },
            {
              "name": "SUSE-SU-2016:1690",
              "refsource": "SUSE",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00054.html"
            },
            {
              "name": "SUSE-SU-2016:1937",
              "refsource": "SUSE",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html"
            },
            {
              "name": "DSA-3607",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://www.debian.org/security/2016/dsa-3607"
            },
            {
              "name": "SUSE-SU-2016:1985",
              "refsource": "SUSE",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html"
            },
            {
              "name": "openSUSE-SU-2016:1641",
              "refsource": "SUSE",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html"
            },
            {
              "name": "openSUSE-SU-2016:2184",
              "refsource": "SUSE",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html"
            },
            {
              "name": "SUSE-SU-2016:2105",
              "refsource": "SUSE",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html"
            },
            {
              "name": "90535",
              "refsource": "BID",
              "tags": [
                "Third Party Advisory",
                "VDB Entry"
              ],
              "url": "http://www.securityfocus.com/bid/90535"
            },
            {
              "name": "RHSA-2016:2584",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://rhn.redhat.com/errata/RHSA-2016-2584.html"
            },
            {
              "name": "RHSA-2016:2574",
              "refsource": "REDHAT",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "http://rhn.redhat.com/errata/RHSA-2016-2574.html"
            },
            {
              "name": "46529",
              "refsource": "EXPLOIT-DB",
              "tags": [
                "Exploit",
                "VDB Entry",
                "Third Party Advisory"
              ],
              "url": "https://www.exploit-db.com/exploits/46529/"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 2.1,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:L/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "LOW",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2019-03-25T18:58Z",
      "publishedDate": "2016-05-23T10:59Z"
    }
  }
}