{"id":"CVE-2013-2140","url":"https://www.cyber-defence.io/tools/cve/CVE-2013-2140","generatedAt":"2026-10-27T22:05:55.137Z","title":"The dispatch_discard_io function in drivers/block/xen-blkback/blkback.c in the Xen blkback implementation in the Linux kernel before 3.10.5 allows guest OS users to cause a denial of service (data loss) via filesystem write operations on a read-only…","description":"The dispatch_discard_io function in drivers/block/xen-blkback/blkback.c in the Xen blkback implementation in the Linux kernel before 3.10.5 allows guest OS users to cause a denial of service (data loss) via filesystem write operations on a read-only disk that supports the (1) BLKIF_OP_DISCARD (aka discard or TRIM) or (2) SCSI UNMAP feature.","published":"2013-09-25T10:31:29.000Z","lastModified":"2026-06-16T23:52:49.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":3.8,"severity":"LOW","vector":"AV:A/AC:M/Au:S/C:N/I:P/A:P"},"cwe":["CWE-20"],"affected":["linux/linux kernel"],"epss":{"score":0.01013,"percentile":0.62984,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.01%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=604c499cbbcc3d5fe5fb8d53306aa0fae1990109","source":"secalert@redhat.com"},{"url":"http://people.canonical.com/~ubuntu-security/cve/2013/CVE-2013-2140.html","source":"secalert@redhat.com"},{"url":"http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.10.5","source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2013/06/05/21","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1938-1","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1943-1","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1944-1","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1945-1","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1946-1","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-1947-1","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2038-1","source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2039-1","source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=971146","source":"secalert@redhat.com"},{"url":"https://github.com/torvalds/linux/commit/604c499cbbcc3d5fe5fb8d53306aa0fae1990109","tags":["Exploit","Patch"],"source":"secalert@redhat.com"},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=604c499cbbcc3d5fe5fb8d53306aa0fae1990109","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://people.canonical.com/~ubuntu-security/cve/2013/CVE-2013-2140.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.10.5","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2013/06/05/21","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1938-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1943-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1944-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1945-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1946-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-1947-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2038-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2039-1","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=971146","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/604c499cbbcc3d5fe5fb8d53306aa0fae1990109","tags":["Exploit","Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2013-2140","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}