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Vulnerability Details : CVE-2014-0196 (1 public exploit)

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.
Publish Date : 2014-05-07 Last Update Date : 2020-08-19
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- CVSS Scores & Vulnerability Types

CVSS Score
6.9
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceGain privilegesMemory corruption
CWE ID 362

- Related OVAL Definitions

Title Definition Id Class Family
DSA-2928-1 linux-2.6 - security update oval:org.mitre.oval:def:24487 unix
ELSA-2014-0678 -- kernel security update (important) oval:org.mitre.oval:def:27162 unix
ELSA-2014-3034 -- Unbreakable Enterprise kernel security update (important) oval:org.mitre.oval:def:26365 unix
ELSA-2014-3053 -- unbreakable enterprise kernel security update (important) oval:org.mitre.oval:def:27226 unix
ELSA-2014-3054 -- unbreakable enterprise kernel security update (important) oval:org.mitre.oval:def:27158 unix
RHSA-2014:0678: kernel security update (Important) oval:org.mitre.oval:def:25258 unix
RHSA-2014:0678: kernel security update (Important) oval:com.redhat.rhsa:def:20140678 unix
SUSE-SU-2014:0667-1 -- Security update for Linux Kernel oval:org.mitre.oval:def:25233 unix
SUSE-SU-2014:0696-1 -- Security update for Linux kernel oval:org.mitre.oval:def:25408 unix
SUSE-SU-2014:0807-1 -- Security update for Linux Kernel oval:org.mitre.oval:def:26025 unix
USN-2196-1 -- linux vulnerability oval:org.mitre.oval:def:24863 unix
USN-2197-1 -- linux-ec2 vulnerability oval:org.mitre.oval:def:24818 unix
USN-2198-1 -- linux vulnerability oval:org.mitre.oval:def:24838 unix
USN-2199-1 -- linux-lts-quantal vulnerability oval:org.mitre.oval:def:24673 unix
USN-2200-1 -- linux-lts-raring vulnerability oval:org.mitre.oval:def:24445 unix
USN-2201-1 -- linux-lts-saucy vulnerability oval:org.mitre.oval:def:24706 unix
USN-2202-1 -- linux vulnerability oval:org.mitre.oval:def:24668 unix
USN-2203-1 -- linux vulnerability oval:org.mitre.oval:def:24543 unix
USN-2204-1 -- linux vulnerability oval:org.mitre.oval:def:24747 unix
USN-2227-1 -- linux-ti-omap4 vulnerabilities oval:org.mitre.oval:def:24338 unix
USN-2260-1 -- linux-lts-trusty vulnerabilities oval:org.mitre.oval:def:25161 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2014-0196

# Product Type Vendor Product Version Update Edition Language
1 OS Canonical Ubuntu Linux 10.04 * * * Version Details Vulnerabilities
2 OS Canonical Ubuntu Linux 12.04 * * * Version Details Vulnerabilities
3 OS Canonical Ubuntu Linux 12.10 * * * Version Details Vulnerabilities
4 OS Canonical Ubuntu Linux 13.10 * * * Version Details Vulnerabilities
5 OS Canonical Ubuntu Linux 14.04 * * * Version Details Vulnerabilities
6 OS Debian Debian Linux 6.0 * * * Version Details Vulnerabilities
7 OS Debian Debian Linux 7.0 * * * Version Details Vulnerabilities
8 Application F5 Big-ip Access Policy Manager * * * * Version Details Vulnerabilities
9 Application F5 Big-ip Advanced Firewall Manager * * * * Version Details Vulnerabilities
10 Application F5 Big-ip Analytics * * * * Version Details Vulnerabilities
11 Application F5 Big-ip Application Acceleration Manager * * * * Version Details Vulnerabilities
12 Application F5 Big-ip Application Security Manager * * * * Version Details Vulnerabilities
13 Application F5 Big-ip Edge Gateway * * * * Version Details Vulnerabilities
14 Application F5 Big-ip Global Traffic Manager * * * * Version Details Vulnerabilities
15 Application F5 Big-ip Link Controller * * * * Version Details Vulnerabilities
16 Application F5 Big-ip Local Traffic Manager * * * * Version Details Vulnerabilities
17 Application F5 Big-ip Policy Enforcement Manager * * * * Version Details Vulnerabilities
18 Application F5 Big-ip Protocol Security Module * * * * Version Details Vulnerabilities
19 Application F5 Big-ip Wan Optimization Manager * * * * Version Details Vulnerabilities
20 Application F5 Big-ip Webaccelerator * * * * Version Details Vulnerabilities
21 Application F5 Big-iq Application Delivery Controller 4.5.0 * * * Version Details Vulnerabilities
22 Application F5 Big-iq Centralized Management 4.6.0 * * * Version Details Vulnerabilities
23 Application F5 Big-iq Cloud * * * * Version Details Vulnerabilities
24 Application F5 Big-iq Cloud And Orchestration 1.0.0 * * * Version Details Vulnerabilities
25 Application F5 Big-iq Device * * * * Version Details Vulnerabilities
26 Application F5 Big-iq Security * * * * Version Details Vulnerabilities
27 Application F5 Enterprise Manager * * * * Version Details Vulnerabilities
28 OS Linux Linux Kernel * * * * Version Details Vulnerabilities
29 OS Oracle Linux 6 - * * Version Details Vulnerabilities
30 OS Redhat Enterprise Linux 6.0 * * * Version Details Vulnerabilities
31 OS Redhat Enterprise Linux Eus 6.3 * * * Version Details Vulnerabilities
32 OS Redhat Enterprise Linux Eus 6.4 * * * Version Details Vulnerabilities
33 OS Redhat Enterprise Linux Server Eus 6.3 * * * Version Details Vulnerabilities
34 OS Suse Suse Linux Enterprise Desktop 11 SP3 * * Version Details Vulnerabilities
35 OS Suse Suse Linux Enterprise High Availability Extension 11 SP3 * * Version Details Vulnerabilities
36 OS Suse Suse Linux Enterprise Server 11 SP3 * * Version Details Vulnerabilities
37 OS Suse Suse Linux Enterprise Server 11 SP3 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Canonical Ubuntu Linux 5
Debian Debian Linux 2
F5 Big-ip Access Policy Manager 1
F5 Big-ip Advanced Firewall Manager 1
F5 Big-ip Analytics 1
F5 Big-ip Application Acceleration Manager 1
F5 Big-ip Application Security Manager 1
F5 Big-ip Edge Gateway 1
F5 Big-ip Global Traffic Manager 1
F5 Big-ip Link Controller 1
F5 Big-ip Local Traffic Manager 1
F5 Big-ip Policy Enforcement Manager 1
F5 Big-ip Protocol Security Module 1
F5 Big-ip Wan Optimization Manager 1
F5 Big-ip Webaccelerator 1
F5 Big-iq Application Delivery Controller 1
F5 Big-iq Centralized Management 1
F5 Big-iq Cloud 1
F5 Big-iq Cloud And Orchestration 1
F5 Big-iq Device 1
F5 Big-iq Security 1
F5 Enterprise Manager 1
Linux Linux Kernel 1
Oracle Linux 1
Redhat Enterprise Linux 1
Redhat Enterprise Linux Eus 2
Redhat Enterprise Linux Server Eus 1
Suse Suse Linux Enterprise Desktop 1
Suse Suse Linux Enterprise High Availability Extension 1
Suse Suse Linux Enterprise Server 2

- References For CVE-2014-0196

http://source.android.com/security/bulletin/2016-07-01.html CONFIRM
http://www.osvdb.org/106646
OSVDB 106646
Exploit! http://www.exploit-db.com/exploits/33516
EXPLOIT-DB 33516 Linux kernel 3.14-rc1 <= 3.15-rc4 - Raw Mode PTY Local Echo Race Condition (x64) Local Privilege Escalation Author:Matthew Daley Release Date:2014-05-26 (linux) local
https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00 CONFIRM
http://linux.oracle.com/errata/ELSA-2014-0771.html CONFIRM
http://secunia.com/advisories/59262
SECUNIA 59262
http://secunia.com/advisories/59599
SECUNIA 59599
http://www.ubuntu.com/usn/USN-2203-1
UBUNTU USN-2203-1
http://www.ubuntu.com/usn/USN-2200-1
UBUNTU USN-2200-1
http://bugzilla.novell.com/show_bug.cgi?id=875690 CONFIRM
http://www.ubuntu.com/usn/USN-2204-1
UBUNTU USN-2204-1
http://www.ubuntu.com/usn/USN-2197-1
UBUNTU USN-2197-1
http://www.ubuntu.com/usn/USN-2198-1
UBUNTU USN-2198-1
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html
SUSE SUSE-SU-2014:0667
http://www.debian.org/security/2014/dsa-2928
DEBIAN DSA-2928
http://www.ubuntu.com/usn/USN-2196-1
UBUNTU USN-2196-1
http://www.ubuntu.com/usn/USN-2202-1
UBUNTU USN-2202-1
http://rhn.redhat.com/errata/RHSA-2014-0512.html
REDHAT RHSA-2014:0512
http://www.debian.org/security/2014/dsa-2926
DEBIAN DSA-2926
http://www.ubuntu.com/usn/USN-2201-1
UBUNTU USN-2201-1
http://www.ubuntu.com/usn/USN-2199-1
UBUNTU USN-2199-1
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html
SUSE SUSE-SU-2014:0683
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=4291086b1f081b869c6d79e5b7441633dc3ace00 CONFIRM
http://pastebin.com/raw.php?i=yTSFUBgZ
https://bugzilla.redhat.com/show_bug.cgi?id=1094232 CONFIRM
http://www.openwall.com/lists/oss-security/2014/05/05/6
MLIST [oss-security] 20140429 CVE-2014-0196: Linux kernel pty layer race condition memory corruption
http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html CONFIRM
http://secunia.com/advisories/59218
SECUNIA 59218

- Metasploit Modules Related To CVE-2014-0196

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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