USN-2777-1 (UBUNTU-CVE-2015-5156)

Vulnerability from osv_ubuntu – Published: 2015-10-20 00:57 – Updated: 2026-02-10 04:40 – Source website
VLAI
Summary
linux-lts-utopic vulnerabilities
Details

It was discovered that virtio networking in the Linux kernel did not handle fragments correctly, leading to kernel memory corruption. A remote attacker could use this to cause a denial of service (system crash) or possibly execute code with administrative privileges. (CVE-2015-5156)

Benjamin Randazzo discovered an information leak in the md (multiple device) driver when the bitmap_info.file is disabled. A local privileged attacker could use this to obtain sensitive information from the kernel. (CVE-2015-5697)

Marc-André Lureau discovered that the vhost driver did not properly release the userspace provided log file descriptor. A privileged attacker could use this to cause a denial of service (resource exhaustion). (CVE-2015-6252)

It was discovered that the Reliable Datagram Sockets (RDS) implementation in the Linux kernel did not verify sockets were properly bound before attempting to send a message, which could cause a NULL pointer dereference. An attacker could use this to cause a denial of service (system crash). (CVE-2015-6937)

Ben Hutchings discovered that the Advanced Union Filesystem (aufs) for the Linux kernel did not correctly handle references of memory mapped files from an aufs mount. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2015-7312)

References
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  "affected": [
    {
      "database_specific": {
        "cves_map": {
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              "id": "CVE-2015-5156",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
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            },
            {
              "id": "CVE-2015-5697",
              "severity": [
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-6252",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
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            },
            {
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              "severity": [
                {
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                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-7312",
              "severity": [
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:14.04:LTS"
        }
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  ],
  "aliases": [],
  "details": "It was discovered that virtio networking in the Linux kernel did not handle\nfragments correctly, leading to kernel memory corruption. A remote attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute code with administrative privileges. (CVE-2015-5156)\n\nBenjamin Randazzo discovered an information leak in the md (multiple\ndevice) driver when the bitmap_info.file is disabled. A local privileged\nattacker could use this to obtain sensitive information from the kernel.\n(CVE-2015-5697)\n\nMarc-Andr\u00e9 Lureau discovered that the vhost driver did not properly\nrelease the userspace provided log file descriptor. A privileged attacker\ncould use this to cause a denial of service (resource exhaustion).\n(CVE-2015-6252)\n\nIt was discovered that the Reliable Datagram Sockets (RDS) implementation\nin the Linux kernel did not verify sockets were properly bound before\nattempting to send a message, which could cause a NULL pointer dereference.\nAn attacker could use this to cause a denial of service (system crash).\n(CVE-2015-6937)\n\nBen Hutchings discovered that the Advanced Union Filesystem (aufs) for the\nLinux kernel did not correctly handle references of memory mapped files\nfrom an aufs mount. A local attacker could use this to cause a denial of\nservice (system crash) or possibly execute arbitrary code with\nadministrative privileges. (CVE-2015-7312)\n",
  "id": "USN-2777-1",
  "modified": "2026-02-10T04:40:55Z",
  "published": "2015-10-20T00:57:58Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2777-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-5156"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-5697"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-6252"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-6937"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-7312"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux-lts-utopic vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2015-5156",
    "UBUNTU-CVE-2015-5697",
    "UBUNTU-CVE-2015-6252",
    "UBUNTU-CVE-2015-6937",
    "UBUNTU-CVE-2015-7312"
  ]
}



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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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