usn-2608-1
Vulnerability from osv_ubuntu
Published
2015-05-13 17:13
Modified
2026-02-10 04:40
Summary
qemu, qemu-kvm vulnerabilities
Details

Jason Geffner discovered that QEMU incorrectly handled the virtual floppy driver. This issue is known as VENOM. A malicious guest could use this issue to cause a denial of service, or possibly execute arbitrary code on the host as the user running the QEMU process. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. (CVE-2015-3456)

Daniel P. Berrange discovered that QEMU incorrectly handled VNC websockets. A remote attacker could use this issue to cause QEMU to consume memory, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 14.10 and Ubuntu 15.04. (CVE-2015-1779)

Jan Beulich discovered that QEMU, when used with Xen, didn't properly restrict access to PCI command registers. A malicious guest could use this issue to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 14.10. (CVE-2015-2756)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2015-1779",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-2756",
              "severity": [
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2015-3456",
              "severity": [
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "qemu",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-common",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-guest-agent",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-keymaps",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-kvm",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-system",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-system-aarch64",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-system-arm",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-system-common",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-system-mips",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-system-misc",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-system-ppc",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-system-sparc",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-system-x86",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-user",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-user-static",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          },
          {
            "binary_name": "qemu-utils",
            "binary_version": "2.0.0+dfsg-2ubuntu1.11"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "qemu",
        "purl": "pkg:deb/ubuntu/qemu@2.0.0+dfsg-2ubuntu1.11?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.0+dfsg-2ubuntu1.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.0+dfsg-3ubuntu5",
        "1.5.0+dfsg-3ubuntu6",
        "1.6.0+dfsg-2ubuntu1",
        "1.6.0+dfsg-2ubuntu2",
        "1.6.0+dfsg-2ubuntu3",
        "1.6.0+dfsg-2ubuntu4",
        "1.7.0+dfsg-2ubuntu1",
        "1.7.0+dfsg-2ubuntu2",
        "1.7.0+dfsg-2ubuntu3",
        "1.7.0+dfsg-2ubuntu4",
        "1.7.0+dfsg-2ubuntu5",
        "1.7.0+dfsg-2ubuntu7",
        "1.7.0+dfsg-2ubuntu8",
        "1.7.0+dfsg-2ubuntu9",
        "1.7.0+dfsg-3ubuntu1~ppa1",
        "1.7.0+dfsg-3ubuntu1",
        "1.7.0+dfsg-3ubuntu2",
        "1.7.0+dfsg-3ubuntu3",
        "1.7.0+dfsg-3ubuntu4",
        "1.7.0+dfsg-3ubuntu5",
        "1.7.0+dfsg-3ubuntu6",
        "1.7.0+dfsg-3ubuntu7",
        "2.0.0~rc1+dfsg-0ubuntu1",
        "2.0.0~rc1+dfsg-0ubuntu2",
        "2.0.0~rc1+dfsg-0ubuntu3",
        "2.0.0~rc1+dfsg-0ubuntu3.1",
        "2.0.0+dfsg-2ubuntu1",
        "2.0.0+dfsg-2ubuntu1.1",
        "2.0.0+dfsg-2ubuntu1.2",
        "2.0.0+dfsg-2ubuntu1.3",
        "2.0.0+dfsg-2ubuntu1.5",
        "2.0.0+dfsg-2ubuntu1.6",
        "2.0.0+dfsg-2ubuntu1.7",
        "2.0.0+dfsg-2ubuntu1.8",
        "2.0.0+dfsg-2ubuntu1.9",
        "2.0.0+dfsg-2ubuntu1.10"
      ]
    }
  ],
  "aliases": [],
  "details": "Jason Geffner discovered that QEMU incorrectly handled the virtual floppy\ndriver. This issue is known as VENOM. A malicious guest could use this\nissue to cause a denial of service, or possibly execute arbitrary code on\nthe host as the user running the QEMU process. In the default installation,\nwhen QEMU is used with libvirt, attackers would be isolated by the libvirt\nAppArmor profile. (CVE-2015-3456)\n\nDaniel P. Berrange discovered that QEMU incorrectly handled VNC websockets.\nA remote attacker could use this issue to cause QEMU to consume memory,\nresulting in a denial of service. This issue only affected Ubuntu 14.04\nLTS, Ubuntu 14.10 and Ubuntu 15.04. (CVE-2015-1779)\n\nJan Beulich discovered that QEMU, when used with Xen, didn\u0027t properly\nrestrict access to PCI command registers. A malicious guest could use this\nissue to cause a denial of service. This issue only affected Ubuntu 14.04\nLTS and Ubuntu 14.10. (CVE-2015-2756)\n",
  "id": "USN-2608-1",
  "modified": "2026-02-10T04:40:54Z",
  "published": "2015-05-13T17:13:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-2608-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-1779"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-2756"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2015-3456"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "qemu, qemu-kvm vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2015-1779",
    "UBUNTU-CVE-2015-2756",
    "UBUNTU-CVE-2015-3456"
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.