Asterisk Stack Overflow in HTTP Websocket Upgrade Lets Remote Users Cause the Target Service to Crash
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SecurityTracker Alert ID: 1041694 |
SecurityTracker URL: http://securitytracker.com/id/1041694
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CVE Reference:
CVE-2018-17281
(Links to External Site)
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Date: Sep 21 2018
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Impact:
Denial of service via network
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 13.x, 14.x, 15.x
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Description:
A vulnerability was reported in Asterisk. A remote user can cause the target service to crash.
A remote user can send a specially crafted HTTP request to request an HTTP websocket upgrade that triggers a stack overflow in the 'res_http_websocket.so' module and causes the target service to consume all available stack memory.
Sean Bright reported this vulnerability.
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Impact:
A remote user can cause the target service to crash.
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Solution:
The vendor has issued a fix (13.23.1, 14.7.8, 15.6.1).
The vendor advisory is available at:
http://downloads.asterisk.org/pub/security/AST-2018-009.html
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Vendor URL: downloads.asterisk.org/pub/security/AST-2018-009.html (Links to External Site)
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Cause:
Resource error
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Underlying OS: Linux (Any), UNIX (Any)
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Message History:
None.
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Source Message Contents
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[Original Message Not Available for Viewing]
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