CVE-2014-0196
KEVMEDIUM 5.5EPSS 20.3%
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.
- CVSS v3.1 CNA
- 5.5 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - CVSS v2.0 NVD
- 6.9 MEDIUM
AV:L/AC:M/Au:N/C:C/I:C/A:C - EPSS
- 20.33% chance of exploitation in the next 30 days, 97th percentile
- CISA KEV
- added 2023-05-12
- Published
- 2014-05-07
- Updated
- 2025-10-22
Proof-of-concept exploits (4)
- http://www.exploit-db.com/exploits/33516
- SunRain/CVE-2014-01960★ · 2014-05-13
- ex4722/kernel_exploitation0★ · 2022-04-26
- tempbottle/CVE-2014-01963★ · 2014-05-13
ExploitDB entries (1)
Exploit collections (1)
- CVE-2014-0196helloexp/0day
Security advisories
- http://bugzilla.novell.com/show_bug.cgi?id=875690
- http://linux.oracle.com/errata/ELSA-2014-0771.html
- http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html
- http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html
- http://pastebin.com/raw.php?i=yTSFUBgZ
- http://rhn.redhat.com/errata/RHSA-2014-0512.html
- http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html
- http://www.debian.org/security/2014/dsa-2926
- http://www.debian.org/security/2014/dsa-2928
- http://www.openwall.com/lists/oss-security/2014/05/05/6
- http://www.ubuntu.com/usn/USN-2196-1
- http://www.ubuntu.com/usn/USN-2197-1
- http://www.ubuntu.com/usn/USN-2198-1
- http://www.ubuntu.com/usn/USN-2199-1
- http://www.ubuntu.com/usn/USN-2200-1
- http://www.ubuntu.com/usn/USN-2201-1
- http://www.ubuntu.com/usn/USN-2202-1
- http://www.ubuntu.com/usn/USN-2203-1
- http://www.ubuntu.com/usn/USN-2204-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1094232
- torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00