usn-3053-1
Vulnerability from osv_ubuntu
Published
2016-08-10 10:42
Modified
2026-02-10 04:41
Summary
linux-lts-vivid vulnerabilities
Details

A missing permission check when settings ACLs was discovered in nfsd. A local user could exploit this flaw to gain access to any file by setting an ACL. (CVE-2016-1237)

It was discovered that the keyring implementation in the Linux kernel did not ensure a data structure was initialized before referencing it after an error condition occurred. A local attacker could use this to cause a denial of service (system crash). (CVE-2016-4470)

Sasha Levin discovered that a use-after-free existed in the percpu allocator in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2016-4794)

Kangjie Lu discovered an information leak in the netlink implementation of the Linux kernel. A local attacker could use this to obtain sensitive information from kernel memory. (CVE-2016-5243)

References
To clipboard 

{
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        "cves_map": {
          "cves": [
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              "id": "CVE-2016-1237",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2016-4470",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2016-4794",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2016-5243",
              "severity": [
                {
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  ],
  "aliases": [],
  "details": "A missing permission check when settings ACLs was discovered in nfsd. A\nlocal user could exploit this flaw to gain access to any file by setting an\nACL. (CVE-2016-1237)\n\nIt was discovered that the keyring implementation in the Linux kernel did\nnot ensure a data structure was initialized before referencing it after an\nerror condition occurred. A local attacker could use this to cause a denial\nof service (system crash). (CVE-2016-4470)\n\nSasha Levin discovered that a use-after-free existed in the percpu\nallocator in the Linux kernel. A local attacker could use this to cause a\ndenial of service (system crash) or possibly execute arbitrary code with\nadministrative privileges. (CVE-2016-4794)\n\nKangjie Lu discovered an information leak in the netlink implementation of\nthe Linux kernel. A local attacker could use this to obtain sensitive\ninformation from kernel memory. (CVE-2016-5243)\n",
  "id": "USN-3053-1",
  "modified": "2026-02-10T04:41:01Z",
  "published": "2016-08-10T10:42:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3053-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-1237"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-4470"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-4794"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-5243"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-lts-vivid vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2016-1237",
    "UBUNTU-CVE-2016-4470",
    "UBUNTU-CVE-2016-4794",
    "UBUNTU-CVE-2016-5243"
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.