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CVE-2014-0196
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…
Medium5.5Known exploitedEPSS 20.3%
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Exploited in the wild
CISA lists this vulnerability in its Known Exploited Vulnerabilities catalog as Linux Kernel Race Condition Vulnerability.
- Added
- 12 May 2023
- Fix due (US federal)
- 2 Jun 2023
- Used by ransomware
- Not known
The impacted product is end-of-life and should be disconnected if still in use.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 20.3% · top 2.5% of all CVEs (4 Nov 2026)
- CISA SSVC
- Exploitation: active · Automatable: no · Technical impact: partial
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Weakness
Affected products
n/a
- affected n/a
References (29)
- USN-2203-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15319.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- 106646 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- SUSE-SU-2014:0683 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- [oss-security] 20140429 CVE-2014-0196: Linux kernel pty layer race condition memory corruption (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 59262 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- USN-2204-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 59218 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- USN-2202-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 33516 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- DSA-2928 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- USN-2199-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://linux.oracle.com/errata/ELSA-2014-0771.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=1094232 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2197-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://source.android.com/security/bulletin/2016-07-01.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2014:0512 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- 59599 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- DSA-2926 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- https://github.com/torvalds/linux/commit/4291086b1f081b869c6d79e5b7441633dc3ace00 (opens in a new tab)x_refsource_CONFIRMx_transferred
- SUSE-SU-2014:0667 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- http://pastebin.com/raw.php?i=yTSFUBgZ (opens in a new tab)x_refsource_MISCx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4291086b1f081b869c6d79e5b7441633dc3ace00 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://bugzilla.novell.com/show_bug.cgi?id=875690 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-2198-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2200-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2201-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-2196-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-0196 (opens in a new tab)government-resource
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- CISA KEV catalog (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2014-0196)Record last updated .