OpenSSH TTY Permissions Let Local Users Cause Denial of Service Conditions
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SecurityTracker Alert ID: 1033917 |
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SecurityTracker URL: http://securitytracker.com/id/1033917
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CVE Reference:
CVE-2015-6565
(Links to External Site)
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Date: Oct 22 2015
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Impact:
Denial of service via local system, Modification of user information
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 6.8, 6.9
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Description:
A vulnerability was reported in OpenSSH. A local user can cause denial of service conditions on the target system.
The system sets TTYs with world-writable permissions. A local user may be able to write arbitrary messages, including escape sequences, to other users on the target system.
Nikolay Edigaryev reported this vulnerability.
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Impact:
A local user can write arbitrary messages, including escape sequences, to other users on the target system, which may cause denial of service conditions.
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Solution:
The vendor has issued a fix (7.0) [in August 2015].
The vendor's advisory is available at:
http://www.openssh.com/txt/release-7.0
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Vendor URL: www.openssh.com/txt/release-7.0 (Links to External Site)
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Cause:
Access control error
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Underlying OS: Linux (Any), UNIX (Any), Windows (Any)
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Message History:
This archive entry has one or more follow-up message(s) listed below.
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Source Message Contents
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[Original Message Not Available for Viewing]
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