CVE-2019-14835 (GCVE-0-2019-14835)

Vulnerability from cvelistv5 – Published: 2019-09-17 15:09 – Updated: 2024-08-05 00:26
VLAI?
Summary
A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel's vhost functionality that translates virtqueue buffers to IOVs, logged the buffer descriptors during migration. A privileged guest user able to pass descriptors with invalid length to the host when migration is underway, could use this flaw to increase their privileges on the host.
Severity ?
7.2 (High)
CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:H
CWE
Assigner
References
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2… x_refsource_CONFIRM
https://www.openwall.com/lists/oss-security/2019/… x_refsource_MISC
https://usn.ubuntu.com/4135-2/ vendor-advisoryx_refsource_UBUNTU
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://access.redhat.com/errata/RHSA-2019:2827 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2828 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2830 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2829 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2854 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2862 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2863 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2866 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2864 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2865 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2867 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2869 vendor-advisoryx_refsource_REDHAT
http://packetstormsecurity.com/files/154572/Kerne… x_refsource_MISC
http://www.openwall.com/lists/oss-security/2019/09/24/1 mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://access.redhat.com/errata/RHSA-2019:2889 vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://seclists.org/bugtraq/2019/Sep/41 mailing-listx_refsource_BUGTRAQ
https://www.debian.org/security/2019/dsa-4531 vendor-advisoryx_refsource_DEBIAN
https://access.redhat.com/errata/RHSA-2019:2900 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2901 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2899 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2924 vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/4135-1/ vendor-advisoryx_refsource_UBUNTU
https://lists.debian.org/debian-lts-announce/2019… mailing-listx_refsource_MLIST
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
http://www.openwall.com/lists/oss-security/2019/10/03/1 mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2019/10/09/3 mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2019/10/09/7 mailing-listx_refsource_MLIST
https://access.redhat.com/errata/RHBA-2019:2824 vendor-advisoryx_refsource_REDHAT
http://packetstormsecurity.com/files/154951/Kerne… x_refsource_MISC
https://security.netapp.com/advisory/ntap-2019103… x_refsource_CONFIRM
https://seclists.org/bugtraq/2019/Nov/11 mailing-listx_refsource_BUGTRAQ
http://packetstormsecurity.com/files/155212/Slack… x_refsource_MISC
http://www.huawei.com/en/psirt/security-advisorie… x_refsource_CONFIRM
Impacted products
Vendor Product Version
Linux Kernel Linux kernel Affected: from version 2.6.34 to 5.2.x
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            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2019/dsa-4531"
        },
        {
          "name": "RHSA-2019:2900",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2900"
        },
        {
          "name": "RHSA-2019:2901",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2901"
        },
        {
          "name": "RHSA-2019:2899",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2899"
        },
        {
          "name": "RHSA-2019:2924",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:2924"
        },
        {
          "name": "USN-4135-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/4135-1/"
        },
        {
          "name": "[debian-lts-announce] 20191001 [SECURITY] [DLA 1940-1] linux-4.9 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2019/10/msg00000.html"
        },
        {
          "name": "FEDORA-2019-a570a92d5a",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YW3QNMPENPFEGVTOFPSNOBL7JEIJS25P/"
        },
        {
          "name": "[oss-security] 20191003 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2019/10/03/1"
        },
        {
          "name": "[oss-security] 20191009 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2019/10/09/3"
        },
        {
          "name": "[oss-security] 20191009 Re: CVE-2019-14835: QEMU-KVM Guest to Host Kernel Escape Vulnerability: vhost/vhost_net kernel buffer overflow",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "http://www.openwall.com/lists/oss-security/2019/10/09/7"
        },
        {
          "name": "RHBA-2019:2824",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHBA-2019:2824"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/154951/Kernel-Live-Patch-Security-Notice-LSN-0058-1.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20191031-0005/"
        },
        {
          "name": "20191108 [slackware-security] Slackware 14.2 kernel (SSA:2019-311-01)",
          "tags": [
            "mailing-list",
            "x_refsource_BUGTRAQ"
          ],
          "url": "https://seclists.org/bugtraq/2019/Nov/11"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200115-01-qemu-en"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2019-14835",
    "datePublished": "2019-09-17T15:09:37.000Z",
    "dateReserved": "2019-08-10T00:00:00.000Z",
    "dateUpdated": "2024-08-05T00:26:39.157Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

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.