CVE-2012-4537 (GCVE-0-2012-4537)

Vulnerability from cvelistv5 – Published: 2012-11-21 23:00 – Updated: 2024-08-06 20:42
VLAI
Summary
Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka "Memory mapping failure DoS vulnerability."
Severity
No CVSS data available.
CWE
  • n/a
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1206 records in the last 180 days details
References
URL Tags
http://rhn.redhat.com/errata/RHSA-2012-1540.html vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://secunia.com/advisories/55082 third-party-advisoryx_refsource_SECUNIA
https://exchange.xforce.ibmcloud.com/vulnerabilit… vdb-entryx_refsource_XF
http://www.openwall.com/lists/oss-security/2012/11/13/6 mailing-listx_refsource_MLIST
http://secunia.com/advisories/51413 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/51200 third-party-advisoryx_refsource_SECUNIA
http://security.gentoo.org/glsa/glsa-201309-24.xml vendor-advisoryx_refsource_GENTOO
http://www.debian.org/security/2012/dsa-2582 vendor-advisoryx_refsource_DEBIAN
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.xen.org/archives/html/xen-announce/2… mailing-listx_refsource_MLIST
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://secunia.com/advisories/51468 third-party-advisoryx_refsource_SECUNIA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://secunia.com/advisories/51352 third-party-advisoryx_refsource_SECUNIA
http://secunia.com/advisories/51324 third-party-advisoryx_refsource_SECUNIA
https://security.gentoo.org/glsa/201604-03 vendor-advisoryx_refsource_GENTOO
http://www.securityfocus.com/bid/56498 vdb-entryx_refsource_BID
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://osvdb.org/87307 vdb-entryx_refsource_OSVDB
http://www.securitytracker.com/id?1027761 vdb-entryx_refsource_SECTRACK
Date Public
2012-11-13 00:00
Show details on NVD website
To clipboard 

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            "value": "Xen 3.4 through 4.2, and possibly earlier versions, does not properly synchronize the p2m and m2p tables when the set_p2m_entry function fails, which allows local HVM guest OS administrators to cause a denial of service (memory consumption and assertion failure), aka \"Memory mapping failure DoS vulnerability.\""
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          {
            "lang": "es",
            "value": "Xen v3.4 hasta v4.2 y posiblemente versiones anteriores, no sincroniza correctamente las tablas p2m y m2p cuando la funci\u00f3n set_p2m_entry falla, lo que permite a los administradores de sistemas operativos clientes en HVM locales, causar una denegaci\u00f3n de servicio (consumo de memoria y error de aserci\u00f3n), tambi\u00e9n conocido como \"vulnerabilidad de denegaci\u00f3n de servicio por fallo en mapeo de memoria."
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    },
    "redhat_vex": {
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      "current_release_date": "2025-11-21T12:49:11+00:00",
      "cve": "CVE-2012-4537",
      "id": "CVE-2012-4537",
      "initial_release_date": "2012-11-13T00:00:00+00:00",
      "product_status:fixed": "122",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: xen: Memory mapping failure can crash Xen",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2012/cve-2012-4537.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-26T01:45:14Z",
      "cve": "CVE-2012-4537",
      "id": "CVE-2012-4537",
      "initial_release_date": "2023-02-15T05:44:32Z",
      "product_status:known_not_affected": "1",
      "product_status:recommended": "250",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2012-4537",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2012-4537.json",
      "version": "11"
    }
  }
}



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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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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