Explain CVE-2014-0196
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.
Affected Products: n/a
References: [{'name': 'USN-2203-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2203-1'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html'}, {'name': '106646', 'tags': ['vdb-entry', 'x_refsource_OSVDB'], 'url': 'http://www.osvdb.org/106646'}, {'name': 'SUSE-SU-2014:0683', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html'}, {'name': '[oss-security] 20140429 CVE-2014-0196: Linux kernel pty layer race condition memory corruption', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'http://www.openwall.com/lists/oss-security/2014/05/05/6'}, {'name': '59262', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/59262'}, {'name': 'USN-2204-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2204-1'}, {'name': '59218', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/59218'}, {'name': 'USN-2202-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2202-1'}, {'name': '33516', 'tags': ['exploit', 'x_refsource_EXPLOIT-DB'], 'url': 'http://www.exploit-db.com/exploits/33516'}, {'name': 'DSA-2928', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2014/dsa-2928'}, {'name': 'USN-2199-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2199-1'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://linux.oracle.com/errata/ELSA-2014-0771.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1094232'}, {'name': 'USN-2197-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2197-1'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://source.android.com/security/bulletin/2016-07-01.html'}, {'name': 'RHSA-2014:0512', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://rhn.redhat.com/errata/RHSA-2014-0512.html'}, {'name': '59599', 'tags': ['third-party-advisory', 'x_refsource_SECUNIA'], 'url': 'http://secunia.com/advisories/59599'}, {'name': 'DSA-2926', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2014/dsa-2926'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00'}, {'name': 'SUSE-SU-2014:0667', 'tags': ['vendor-advisory', 'x_refsource_SUSE'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html'}, {'tags': ['x_refsource_MISC'], 'url': 'http://pastebin.com/raw.php?i=yTSFUBgZ'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://bugzilla.novell.com/show_bug.cgi?id=875690'}, {'name': 'USN-2198-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2198-1'}, {'name': 'USN-2200-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2200-1'}, {'name': 'USN-2201-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2201-1'}, {'name': 'USN-2196-1', 'tags': ['vendor-advisory', 'x_refsource_UBUNTU'], 'url': 'http://www.ubuntu.com/usn/USN-2196-1'}]
CVE State: PUBLISHED