{"id":"CVE-2014-4021","aliases":["DEBIAN-CVE-2014-4021","DSA-3006-1","EUVD-2014-3953","GHSA-h82g-hrcm-j7gq","RHSA-2014:0926","SUSE-SU-2015:0940-1","UBUNTU-CVE-2014-4021"],"status":"published","title":"Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows...","description":"Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified 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Advisory","advisory","fix","report"]},{"url":"http://secunia.com/advisories/60130","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://www.debian.org/security/2014/dsa-3006","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","advisory"]},{"url":"http://www.securityfocus.com/bid/68070","tags":["vdb-entry","x_refsource_BID","x_transferred","web"]},{"url":"http://secunia.com/advisories/59208","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2014-July/135068.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-4021","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-h82g-hrcm-j7gq"},{"url":"https://security-tracker.debian.org/tracker/CVE-2014-4021","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2014:0926","tags":["advisory"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1083274","tags":["report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1103646","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2014/rhsa-2014_0926.json","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2014-2678","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-2678","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2014-2678","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2014-4021","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2014-4021","tags":["advisory","report"]},{"url":"https://www.suse.com/support/update/announcement/2015/suse-su-20150940-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/777628","tags":["report"]},{"url":"https://bugzilla.suse.com/789944","tags":["report"]},{"url":"https://bugzilla.suse.com/789945","tags":["report"]},{"url":"https://bugzilla.suse.com/789948","tags":["report"]},{"url":"https://bugzilla.suse.com/789950","tags":["report"]},{"url":"https://bugzilla.suse.com/789951","tags":["report"]},{"url":"https://bugzilla.suse.com/826717","tags":["report"]},{"url":"https://bugzilla.suse.com/880751","tags":["report"]},{"url":"https://bugzilla.suse.com/895798","tags":["report"]},{"url":"https://bugzilla.suse.com/895799","tags":["report"]},{"url":"https://bugzilla.suse.com/895802","tags":["report"]},{"url":"https://bugzilla.suse.com/903850","tags":["report"]},{"url":"https://bugzilla.suse.com/903967","tags":["report"]},{"url":"https://bugzilla.suse.com/903970","tags":["report"]},{"url":"https://bugzilla.suse.com/905465","tags":["report"]},{"url":"https://bugzilla.suse.com/905467","tags":["report"]},{"url":"https://bugzilla.suse.com/906439","tags":["report"]},{"url":"https://bugzilla.suse.com/927967","tags":["report"]},{"url":"https://bugzilla.suse.com/929339","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2012-5510","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-5511","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-5513","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-5514","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2012-5515","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2013-3495","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-4021","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-7154","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-7155","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-7156","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-8594","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-8595","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-8866","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-8867","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2014-9030","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-3340","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2015-3456","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2014-4021","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2014-4021","description":"Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.","status":"published","published":"2014-06-18T19:00:00Z","modified":"2024-08-06T11:04:27.839Z","updated_at":"2026-11-02T14:33:45.938615Z"}],"euvd":[{"id":"EUVD-2014-3953","description":"Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.","status":"published","published":"2014-06-18T19:00:00Z","modified":"2024-08-06T11:04:27Z","updated_at":"2026-11-03T01:57:08.409137Z"}],"ghsa":[{"id":"GHSA-h82g-hrcm-j7gq","title":"Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows...","description":"Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.","status":"published","published":"2022-05-14T02:13:57Z","modified":"2023-02-02T05:05:43Z","cwes":["CWE-119"],"updated_at":"2026-11-02T14:52:09.721765Z"}],"nvd":[{"id":"CVE-2014-4021","description":"Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.","status":"published","published":"2014-06-18T19:55:04.92Z","modified":"2026-06-17T00:09:18.397Z","cvss":[{"version":"2.0","score":2.7,"vector":"AV:A/AC:L/Au:S/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:02:54.464139Z"}],"osv":[{"id":"CVE-2014-4021","description":"Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.","status":"published","published":"2014-06-18T19:55:04Z","modified":"2026-04-10T03:43:52.364504Z","updated_at":"2026-11-02T15:43:59.654289Z"},{"id":"DEBIAN-CVE-2014-4021","description":"Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.","status":"published","published":"2014-06-18T19:55:04.92Z","modified":"2026-10-23T15:47:32.047365528Z","updated_at":"2026-11-02T15:45:26.134753Z"},{"id":"DSA-3006-1","title":"xen - security update","status":"published","published":"2014-08-18T00:00:00Z","modified":"2026-03-09T01:18:46.88872Z","updated_at":"2026-11-02T15:46:15.843838Z"},{"id":"RHSA-2014:0926","title":"Red Hat Security Advisory: kernel security and bug fix update","status":"published","published":"2024-09-15T21:50:58Z","modified":"2026-06-26T12:21:46.959889458Z","updated_at":"2026-11-02T15:53:02.532052Z"},{"id":"SUSE-SU-2015:0940-1","title":"Security update for Xen","description":"\nThis update fixes the following security issues in Xen:\n\n    * CVE-2012-5510: Grant table version switch list corruption\n      vulnerability (XSA-26)\n    * CVE-2012-5511: Several HVM operations do not validate the range of\n      their inputs (XSA-27)\n    * CVE-2012-5513: XENMEM_exchange may overwrite hypervisor memory\n      (XSA-29)\n    * CVE-2012-5514: Missing unlock in\n      guest_physmap_mark_populate_on_demand() (XSA-30)\n    * CVE-2012-5515: Several memory hypercall operations allow invalid\n      extent order values (XSA-31)\n\nAlso the following fix has been applied:\n\n    * bnc#777628 - guest 'disappears' after live migration\n      Updated block-dmmd script\n\nSecurity Issues references:\n\n    * CVE-2012-5513\n      \u003chttp://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5513\u003e\n    * CVE-2012-5514\n      \u003chttp://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5514\u003e\n    * CVE-2012-5511\n      \u003chttp://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5511\u003e\n    * CVE-2012-5510\n      \u003chttp://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5510\u003e\n    * CVE-2012-5515\n      \u003chttp://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-5515\u003e\n\n","status":"published","published":"2012-11-22T17:59:15Z","modified":"2026-02-04T02:24:40.497699Z","updated_at":"2026-11-02T15:53:41.276824Z"},{"id":"UBUNTU-CVE-2014-4021","description":"Xen 3.2.x through 4.4.x does not properly clean memory pages recovered from guests, which allows local guest OS users to obtain sensitive information via unspecified vectors.","status":"published","published":"2014-06-18T19:55:00Z","modified":"2026-04-22T09:44:40.492556Z","updated_at":"2026-11-02T15:54:09.010095Z"}]}}