Vulnerability record

CVE-2014-0196

Linux Kernel Race Condition Vulnerability

Severity: ElevatedExploitation: Exploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Linux, fix it now.

CISA required action: The impacted product is end-of-life and should be disconnected if still in use.

US federal civilian agencies must remediate by Jun 2, 2023.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

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.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorAffected versionsFixed inSource
LinuxLinux> 2.6.31, < 3.2.59; >= 3.3, < 3.4.91; >= 3.5, < 3.10.40; >= 3.11, < 3.12.20; >= 3.13, < 3.14.4; 2.6.313.2.59; 3.4.91; 3.10.40; 3.12.20; 3.14.4KEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2014-0196 scored CVSS 5.5: Linux Kernel, Linux Kernel Race Condition Vulnerability

    CISA lists this as exploited in the wild. Unpatched Kernel systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2014-0196: Linux Kernel, Linux Kernel Race Condition Vulnerability

    An official fix is now available for Linux Kernel. This vulnerability is being exploited, so apply it promptly.

    Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References