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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.

• http://www.ubuntu.com/usn/USN-2203-1 vendor-advisoryx_refsource_UBUNTU
• http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html x_refsource_CONFIRM
• http://www.osvdb.org/106646 vdb-entryx_refsource_OSVDB
• http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html vendor-advisoryx_refsource_SUSE
• http://www.openwall.com/lists/oss-security/2014/05/05/6 mailing-listx_refsource_MLIST
• http://secunia.com/advisories/59262 third-party-advisoryx_refsource_SECUNIA
• http://www.ubuntu.com/usn/USN-2204-1 vendor-advisoryx_refsource_UBUNTU
• http://secunia.com/advisories/59218 third-party-advisoryx_refsource_SECUNIA
• http://www.ubuntu.com/usn/USN-2202-1 vendor-advisoryx_refsource_UBUNTU
• http://www.exploit-db.com/exploits/33516 exploitx_refsource_EXPLOIT-DB
• http://www.debian.org/security/2014/dsa-2928 vendor-advisoryx_refsource_DEBIAN
• http://www.ubuntu.com/usn/USN-2199-1 vendor-advisoryx_refsource_UBUNTU
• http://linux.oracle.com/errata/ELSA-2014-0771.html x_refsource_CONFIRM
• https://bugzilla.redhat.com/show_bug.cgi?id=1094232 x_refsource_CONFIRM
• http://www.ubuntu.com/usn/USN-2197-1 vendor-advisoryx_refsource_UBUNTU
• http://source.android.com/security/bulletin/2016-07-01.html x_refsource_CONFIRM
• http://rhn.redhat.com/errata/RHSA-2014-0512.html vendor-advisoryx_refsource_REDHAT
• http://secunia.com/advisories/59599 third-party-advisoryx_refsource_SECUNIA
• http://www.debian.org/security/2014/dsa-2926 vendor-advisoryx_refsource_DEBIAN
• https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00 x_refsource_CONFIRM
• http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html vendor-advisoryx_refsource_SUSE
• http://pastebin.com/raw.php?i=yTSFUBgZ x_refsource_MISC
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00 x_refsource_CONFIRM
• http://bugzilla.novell.com/show_bug.cgi?id=875690 x_refsource_CONFIRM
• http://www.ubuntu.com/usn/USN-2198-1 vendor-advisoryx_refsource_UBUNTU
• http://www.ubuntu.com/usn/USN-2200-1 vendor-advisoryx_refsource_UBUNTU
• http://www.ubuntu.com/usn/USN-2201-1 vendor-advisoryx_refsource_UBUNTU
• http://www.ubuntu.com/usn/USN-2196-1 vendor-advisoryx_refsource_UBUNTU
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-0196 government-resource