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CVE-2012-2121 (GCVE-0-2012-2121)

Vulnerability from cvelistv5 – Published: 2012-05-17 10:00 – Updated: 2024-08-06 19:26
VLAI
Summary
The KVM implementation in the Linux kernel before 3.3.4 does not properly manage the relationships between memory slots and the iommu, which allows guest OS users to cause a denial of service (memory leak and host OS crash) by leveraging administrative access to the guest OS to conduct hotunplug and hotplug operations on devices.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://secunia.com/advisories/50732 third-party-advisoryx_refsource_SECUNIA
http://rhn.redhat.com/errata/RHSA-2012-0743.html vendor-advisoryx_refsource_REDHAT
http://www.securitytracker.com/id?1027083 vdb-entryx_refsource_SECTRACK
http://www.openwall.com/lists/oss-security/2012/0… mailing-listx_refsource_MLIST
https://bugzilla.redhat.com/show_bug.cgi?id=814149 x_refsource_CONFIRM
https://github.com/torvalds/linux/commit/09ca8e11… x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-1577-1 vendor-advisoryx_refsource_UBUNTU
http://www.kernel.org/pub/linux/kernel/v3.x/Chang… x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2036-1 vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2037-1 vendor-advisoryx_refsource_UBUNTU
http://rhn.redhat.com/errata/RHSA-2012-0676.html vendor-advisoryx_refsource_REDHAT
Date Public
2012-04-19 00:00
Show details on NVD website
To clipboard 

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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-27T14:20:42+00:00",
      "cve": "CVE-2012-2121",
      "id": "CVE-2012-2121",
      "initial_release_date": "2012-03-29T00:00:00+00:00",
      "product_status:fixed": "188",
      "product_status:known_affected": "1",
      "product_status:known_not_affected": "12",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kvm: device assignment page leak",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-2121.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-26T01:47:43Z",
      "cve": "CVE-2012-2121",
      "id": "CVE-2012-2121",
      "initial_release_date": "2023-02-15T05:47:18Z",
      "product_status:known_not_affected": "495",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2012-2121",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2012-2121.json",
      "version": "10"
    }
  }
}



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Sightings

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  • 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.
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  • 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.


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