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.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- http://bugzilla.novell.com/show_bug.cgi?id=875690Issue Tracking, Permissions Required, Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00Broken Link
- http://linux.oracle.com/errata/ELSA-2014-0771.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.htmlMailing List, Third Party Advisory
- http://pastebin.com/raw.php?i=yTSFUBgZExploit, Mailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2014-0512.htmlThird Party Advisory
- http://secunia.com/advisories/59218Not Applicable
- http://secunia.com/advisories/59262Broken Link
- http://secunia.com/advisories/59599Broken Link
- http://source.android.com/security/bulletin/2016-07-01.htmlNot Applicable
- http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.htmlThird Party Advisory
- http://www.debian.org/security/2014/dsa-2926Third Party Advisory
- http://www.debian.org/security/2014/dsa-2928Third Party Advisory
- http://www.exploit-db.com/exploits/33516Exploit, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2014/05/05/6Mailing List, Third Party Advisory
- http://www.osvdb.org/106646Broken Link
- http://www.ubuntu.com/usn/USN-2196-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2197-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2198-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2199-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2200-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2201-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2202-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2203-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2204-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1094232Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00Exploit, Patch, Third Party Advisory
- http://bugzilla.novell.com/show_bug.cgi?id=875690Issue Tracking, Permissions Required, Third Party Advisory
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00Broken Link
- http://linux.oracle.com/errata/ELSA-2014-0771.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.htmlMailing List, Third Party Advisory
- http://pastebin.com/raw.php?i=yTSFUBgZExploit, Mailing List, Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2014-0512.htmlThird Party Advisory
- http://secunia.com/advisories/59218Not Applicable
- http://secunia.com/advisories/59262Broken Link
- http://secunia.com/advisories/59599Broken Link
- http://source.android.com/security/bulletin/2016-07-01.htmlNot Applicable
- http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.htmlThird Party Advisory
- http://www.debian.org/security/2014/dsa-2926Third Party Advisory
- http://www.debian.org/security/2014/dsa-2928Third Party Advisory
- http://www.exploit-db.com/exploits/33516Exploit, Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2014/05/05/6Mailing List, Third Party Advisory
- http://www.osvdb.org/106646Broken Link
- http://www.ubuntu.com/usn/USN-2196-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2197-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2198-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2199-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2200-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2201-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2202-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2203-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-2204-1Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1094232Issue Tracking, Patch, Third Party Advisory
- https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00Exploit, Patch, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-0196US Government Resource
Timeline
- Published
- May 7, 2014
- Last modified
- Jun 17, 2026
- Added to CISA KEV
- May 12, 2023
- NVD status
- Analyzed