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
URL Tags
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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
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https://access.redhat.com/errata/RHSA-2019:2901 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2019:2899 vendor-advisoryx_refsource_REDHAT
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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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      "descriptions": "[{\"lang\": \"en\", \"value\": \"A buffer overflow flaw was found, in versions from 2.6.34 to 5.2.x, in the way Linux kernel\u0027s 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.\"}, {\"lang\": \"es\", \"value\": \"Se encontr\\u00f3 un fallo de desbordamiento de b\\u00fafer, en las versiones desde 2.6.34 hasta 5.2.x, en la manera en que la funcionalidad vhost del kernel de Linux que traduce los b\\u00faferes virtueue en IOV, registraba los descriptores del b\\u00fafer durante una migraci\\u00f3n. Un usuario invitado privilegiado capaz de pasar descriptores con una longitud no v\\u00e1lida hacia el host cuando la migraci\\u00f3n est\\u00e1 en marcha, podr\\u00eda usar este fallo para aumentar sus privilegios sobre el host.\"}]",
      "id": "CVE-2019-14835",
      "lastModified": "2024-11-21T04:27:27.790",
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      "published": "2019-09-17T16:15:10.980",
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  }
}


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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.