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Category:   OS (Linux)  >   Linux Kernel Vendors:
Linux Kernel tcp_splice_read() Infinite Loop Lets Remote Consume Excessive CPU Resources on the Target System
SecurityTracker Alert ID:  1037897
SecurityTracker URL:
CVE Reference:   CVE-2017-6214   (Links to External Site)
Date:  Feb 23 2017
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in the Linux kernel. A remote user can consume excessive CPU resources on the target system.

A remote user can send a specially crafted TCP packet with the URG flag to trigger a flaw in the tcp_splice_read() function in 'net/ipv4/tcp.c' and cause the target service to enter an infinite loop and consume excessive CPU resources on the target system.

Impact:   A remote user can consume excessive CPU resources on the target system.
Solution:   The vendor has issued a fix (4.9.11, 4.10-rc8).

The vendor advisory is available at:

Vendor URL: (Links to External Site)
Cause:   State error

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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