CVE-2014-0196
linux kernel, debian linux, redhat enterprise linux
Published 7 May 2014 · updated 17 Jun 2026 · Analyzed
5.5 Medium · CVSS 3.1, CISA ADP
Exploited in the wild
CISA added this to its Known Exploited Vulnerabilities catalog on 12 May 2023, with a remediation deadline of 2 Jun 2023 for US federal agencies.
Required action: The impacted product is end-of-life and should be disconnected if still in use.
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.
References
- bugzilla.novell.com/show_bug.cgi?id=875690 · Issue Tracking, Permissions Required, Third Party Advisory
- git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00 · Broken Link
- linux.oracle.com/errata/ELSA-2014-0771.html · Third Party Advisory
- lists.opensuse.org/opensuse-security-announce/2014-05/msg00007.html · Mailing List, Third Party Advisory
- lists.opensuse.org/opensuse-security-announce/2014-05/msg00012.html · Mailing List, Third Party Advisory
- pastebin.com/raw.php?i=yTSFUBgZ · Exploit, Mailing List, Third Party Advisory
- rhn.redhat.com/errata/RHSA-2014-0512.html · Third Party Advisory
- secunia.com/advisories/59218 · Not Applicable
- secunia.com/advisories/59262 · Broken Link
- secunia.com/advisories/59599 · Broken Link
- source.android.com/security/bulletin/2016-07-01.html · Not Applicable
- support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html · Third Party Advisory
- www.debian.org/security/2014/dsa-2926 · Third Party Advisory
- www.debian.org/security/2014/dsa-2928 · Third Party Advisory
- www.exploit-db.com/exploits/33516 · Exploit, Third Party Advisory, VDB Entry
- www.openwall.com/lists/oss-security/2014/05/05/6 · Mailing List, Third Party Advisory
- www.osvdb.org/106646 · Broken Link
- www.ubuntu.com/usn/USN-2196-1 · Third Party Advisory
- www.ubuntu.com/usn/USN-2197-1 · Third Party Advisory
- www.ubuntu.com/usn/USN-2198-1 · Third Party Advisory
- www.ubuntu.com/usn/USN-2199-1 · Third Party Advisory
- www.ubuntu.com/usn/USN-2200-1 · Third Party Advisory
- www.ubuntu.com/usn/USN-2201-1 · Third Party Advisory
- www.ubuntu.com/usn/USN-2202-1 · Third Party Advisory
- www.ubuntu.com/usn/USN-2203-1 · Third Party Advisory