CVE-2014-0196

Known Exploited Public Exploit

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.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 60.26% Top 5%
KEV Since 
Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com Vendor Advisory ubuntu.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.ubuntu.com/usn/USN-2203-1 vendor advisory third party advisory
http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html third party advisory
http://www.osvdb.org/106646 broken link vdb entry
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html vendor advisory mailing list third party advisory
http://www.openwall.com/lists/oss-security/2014/05/05/6 mailing list third party advisory
http://secunia.com/advisories/59262 broken link third party advisory
http://www.ubuntu.com/usn/USN-2204-1 vendor advisory third party advisory
http://secunia.com/advisories/59218 not applicable third party advisory
http://www.ubuntu.com/usn/USN-2202-1 vendor advisory third party advisory
http://www.exploit-db.com/exploits/33516 exploit vdb entry third party advisory
http://www.debian.org/security/2014/dsa-2928 vendor advisory third party advisory
http://www.ubuntu.com/usn/USN-2199-1 vendor advisory third party advisory
http://linux.oracle.com/errata/ELSA-2014-0771.html third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1094232 issue tracking patch third party advisory
http://www.ubuntu.com/usn/USN-2197-1 vendor advisory third party advisory
http://source.android.com/security/bulletin/2016-07-01.html not applicable
http://rhn.redhat.com/errata/RHSA-2014-0512.html vendor advisory third party advisory
http://secunia.com/advisories/59599 broken link third party advisory
http://www.debian.org/security/2014/dsa-2926 vendor advisory third party advisory
https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00 exploit patch third party advisory
http://lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html vendor advisory mailing list third party advisory
http://pastebin.com/raw.php?i=yTSFUBgZ exploit mailing list third party advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00 broken link
http://bugzilla.novell.com/show_bug.cgi?id=875690 issue tracking permissions required third party advisory
http://www.ubuntu.com/usn/USN-2198-1 vendor advisory third party advisory
http://www.ubuntu.com/usn/USN-2200-1 vendor advisory third party advisory
http://www.ubuntu.com/usn/USN-2201-1 vendor advisory third party advisory
http://www.ubuntu.com/usn/USN-2196-1 vendor advisory third party advisory

Frequently Asked Questions

What is the severity of CVE-2014-0196?
CVE-2014-0196 has been scored as a medium severity vulnerability.
How to fix CVE-2014-0196?
To fix CVE-2014-0196, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2014-0196 being actively exploited in the wild?
It is confirmed that CVE-2014-0196 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~60% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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