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CVE-2015-7972 (GCVE-0-2015-7972)

Vulnerability from cvelistv5 – Published: 2015-10-30 15:00 – Updated: 2024-08-06 08:06
VLAI
Summary
The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to "heavy memory pressure."
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://support.citrix.com/article/CTX202404 x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
http://xenbits.xen.org/xsa/advisory-153.html x_refsource_CONFIRM
http://www.securityfocus.com/bid/77365 vdb-entryx_refsource_BID
http://lists.opensuse.org/opensuse-updates/2015-1… vendor-advisoryx_refsource_SUSE
http://www.debian.org/security/2015/dsa-3414 vendor-advisoryx_refsource_DEBIAN
http://lists.fedoraproject.org/pipermail/package-… vendor-advisoryx_refsource_FEDORA
https://security.gentoo.org/glsa/201604-03 vendor-advisoryx_refsource_GENTOO
http://www.securitytracker.com/id/1034036 vdb-entryx_refsource_SECTRACK
Date Public
2015-10-29 00:00
Show details on NVD website
To clipboard 

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      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-399\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2015-7972\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2015-10-30T15:59:09.077\",\"lastModified\":\"2026-05-06T22:30:45.220\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to \\\"heavy memory pressure.\\\"\"},{\"lang\":\"es\",\"value\":\"La funci\u00f3n (1) libxl_set_memory_target en tools/libxl/libxl.c y (2) libxl__build_post en tools/libxl/libxl_dom.c en Xen 3.4.x hasta la versi\u00f3n 4.6.x no calcula correctamente el tama\u00f1o del globo cuando utilizan el sistema populate-on-demand (PoD), lo que permite a usuarios invitados HVM locales provocar una denegaci\u00f3n de servicio (ca\u00edda de invitados) a trav\u00e9s de vectores no especificados relacionados con \u0027heavy memory pressure.\u0027\"}],\"metrics\":{\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:L/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":2.1,\"accessVector\":\"LOCAL\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"LOW\",\"exploitabilityScore\":3.9,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-399\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:3.4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"7F7D1B7E-C30F-430F-832D-2A405DA1F2D9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:3.4.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B7C1D0AD-B804-474C-96A3-988BADA0DAD2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:3.4.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1DCD1F05-9F96-40DD-B506-750E87306325\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:3.4.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"25B6AE42-E1EB-47A8-8FAF-7A93A67EC67F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:3.4.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"60BADA43-94D5-4E80-B5C8-D01A0249F13E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.0.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"550223A9-B9F1-440A-8C25-9F0F76AF7301\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.0.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FC734D58-96E5-4DD2-8781-F8E0ADB96462\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.0.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"62CEC1BF-1922-410D-BCBA-C58199F574C7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.0.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"923F2C2B-4A65-4823-B511-D0FEB7C7FAB2\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.0.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C1A24DED-B2EC-4D9C-9FA4-DD37EF3E3BFC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.1.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"0D532B60-C8DD-4A2F-9D05-E574D23EB754\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.1.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"5D83CA8B-8E49-45FA-8FAB-C15052474542\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.1.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"27537DF5-7E0F-463F-BA87-46E329EE07AC\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.1.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"3EA4F978-9145-4FE6-B4F9-15207E52C40A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.1.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"22A995FD-9B7F-4DF0-BECF-4B086E470F1E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.1.5:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"219597E2-E2D7-4647-8A7C-688B96300158\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.1.6.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"65E55950-EACA-4209-B2A1-E09026FC6006\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8F0AF8EF-6FF6-4E22-B16E-82C9F90C6B00\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"47640819-FC43-49ED-8A77-728C3D7255B3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"2448537F-87AD-45C1-9FB0-7A49CA31BD76\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E36B2265-70E1-413B-A7CF-79D39E9ADCFB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.3.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"BF948E6A-07BE-4C7D-8A98-002E89D35F4D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.3.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C0E23B94-1726-4F63-84BB-8D83FAB156D7\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.3.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C76124AB-4E3D-4BE0-AAEA-7FC05868E2FB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.3.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F784EF07-DBEC-492A-A0F4-F9F7B2551A0B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"1044792C-D544-457C-9391-4F3B5BAB978D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.4.1:-:*:*:*:*:*:*\",\"matchCriteriaId\":\"A40F356B-4F5F-485D-A53A-8CE4629D6931\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.5.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"90CCECD0-C0F9-45A8-8699-64428637EBCA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.5.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F0ED340C-6746-471E-9F2D-19D62D224B7A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:xen:xen:4.6.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"4B6F7CE9-C409-4D88-9A99-B21420633F45\"}]}]}],\"references\":[{\"url\":\"http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://lists.opensuse.org/opensuse-updates/2015-11/msg00063.html\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://support.citrix.com/article/CTX202404\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://www.debian.org/security/2015/dsa-3414\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://www.securityfocus.com/bid/77365\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://www.securitytracker.com/id/1034036\",\"source\":\"cve@mitre.org\"},{\"url\":\"http://xenbits.xen.org/xsa/advisory-153.html\",\"source\":\"cve@mitre.org\",\"tags\":[\"Vendor 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Advisory\"]},{\"url\":\"https://security.gentoo.org/glsa/201604-03\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T12:13:49+00:00",
      "cve": "CVE-2015-7972",
      "id": "CVE-2015-7972",
      "initial_release_date": "2015-10-29T00:00:00+00:00",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "xen: populate-on-demand balloon size inaccuracy can crash guests on x86",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2015/cve-2015-7972.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-01T02:26:14Z",
      "cve": "CVE-2015-7972",
      "id": "CVE-2015-7972",
      "initial_release_date": "2023-02-15T05:13:03Z",
      "product_status:known_affected": "321",
      "product_status:recommended": "552",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2015-7972",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2015-7972.json",
      "version": "33"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.