{"id":"CVE-2014-0196","url":"https://www.cyber-defence.io/tools/cve/CVE-2014-0196","generatedAt":"2026-10-27T19:52:41.719Z","title":"Linux Kernel Race Condition Vulnerability","description":"The n_tty_write function in drivers/tty/n_tty.c in the Linux kernel through 3.14.3 does not properly manage tty driver access in the \"LECHO & !OPOST\" case, which allows local users to cause a denial of service (memory corruption and system crash) or gain privileges by triggering a race condition involving read and write operations with long strings.","published":"2014-05-07T10:55:04.000Z","lastModified":"2026-06-17T00:02:29.000Z","status":"Analyzed","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-362"],"affected":["linux/linux kernel","debian/debian linux","redhat/enterprise linux","redhat/enterprise linux eus","redhat/enterprise linux server eus","suse/suse linux enterprise desktop","suse/suse linux enterprise high availability extension","suse/suse linux enterprise server","oracle/linux","canonical/ubuntu linux","f5/big-ip access policy manager","f5/big-ip advanced firewall manager","f5/big-ip analytics","f5/big-ip application acceleration manager","f5/big-ip application security manager","f5/big-ip edge gateway","f5/big-ip global traffic manager","f5/big-ip link controller","f5/big-ip local traffic manager","f5/big-ip policy enforcement manager","f5/big-ip protocol security module","f5/big-ip wan optimization manager","f5/big-ip webaccelerator","f5/big-iq application delivery controller","f5/big-iq centralized management","f5/big-iq cloud","f5/big-iq cloud and orchestration","f5/big-iq device","f5/big-iq security","f5/enterprise manager"],"epss":{"score":0.20329,"percentile":0.9746,"date":"2026-10-26","history":[{"date":"2026-10-19","score":0.20329,"percentile":0.97458}]},"kev":{"listed":true,"dateAdded":"2023-05-12","dueDate":"2023-06-02","knownRansomwareCampaignUse":"Unknown","notes":"The impacted product is end-of-life and should be disconnected if still in use.\nhttps://lkml.iu.edu/hypermail/linux/kernel/1609.1/02103.html; https://nvd.nist.gov/vuln/detail/CVE-2014-0196"},"exploits":{"count":1,"verified":false,"firstPublished":"2014-05-26","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":33516,"kind":"exploit","title":"Linux Kernel 3.14-rc1 < 3.15-rc4 (x64) - Raw Mode PTY Echo Race Condition Privilege Escalation","url":"https://www.exploit-db.com/exploits/33516","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux_x86-64/local/33516.c","file":"exploits/linux_x86-64/local/33516.c","published":"2014-05-26","added":"2014-05-26","updated":"2017-04-15","author":"Matthew Daley","type":"local","platform":"linux_x86-64","port":null,"verified":false,"codes":["CVE-2014-0196","OSVDB-106646"],"tags":null,"aliases":"cve-2014-0196-md.c;rawmodePTY","applicationUrl":null,"screenshotUrl":null,"referenceUrl":null}]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 2 June 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://bugzilla.novell.com/show_bug.cgi?id=875690","tags":["Issue Tracking","Permissions Required","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://linux.oracle.com/errata/ELSA-2014-0771.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://pastebin.com/raw.php?i=yTSFUBgZ","tags":["Exploit","Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://rhn.redhat.com/errata/RHSA-2014-0512.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/59218","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/59262","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://secunia.com/advisories/59599","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://source.android.com/security/bulletin/2016-07-01.html","tags":["Not Applicable"],"source":"secalert@redhat.com"},{"url":"http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2014/dsa-2926","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.debian.org/security/2014/dsa-2928","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.exploit-db.com/exploits/33516","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"secalert@redhat.com"},{"url":"http://www.openwall.com/lists/oss-security/2014/05/05/6","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.osvdb.org/106646","tags":["Broken Link"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2196-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2197-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2198-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2199-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2200-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2201-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2202-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2203-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://www.ubuntu.com/usn/USN-2204-1","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1094232","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00","tags":["Exploit","Patch","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://bugzilla.novell.com/show_bug.cgi?id=875690","tags":["Issue Tracking","Permissions Required","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://linux.oracle.com/errata/ELSA-2014-0771.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://pastebin.com/raw.php?i=yTSFUBgZ","tags":["Exploit","Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://rhn.redhat.com/errata/RHSA-2014-0512.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/59218","tags":["Not Applicable"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/59262","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/59599","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://source.android.com/security/bulletin/2016-07-01.html","tags":["Not Applicable"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2014/dsa-2926","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.debian.org/security/2014/dsa-2928","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.exploit-db.com/exploits/33516","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2014/05/05/6","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.osvdb.org/106646","tags":["Broken Link"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2196-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2197-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2198-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2199-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2200-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2201-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2202-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2203-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.ubuntu.com/usn/USN-2204-1","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1094232","tags":["Issue Tracking","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00","tags":["Exploit","Patch","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-0196","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2014-0196","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."}