Race Condition Affecting kernel package, versions <0:3.10.40-50.136.amzn1


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.98% (85th percentile)

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  • Snyk IDSNYK-AMZN201803-KERNEL-1674386
  • published27 Sept 2021
  • disclosed7 May 2014

Introduced: 7 May 2014

CVE-2014-0196  (opens in a new tab)
CWE-362  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel to version 0:3.10.40-50.136.amzn1 or higher.
This issue was patched in ALAS-2014-339.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

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

CVSS Scores

version 3.1