Linux Kernel Kerberos RxRPC Ticket Decoding Bug Lets Local Users Gain Elevated Privileges
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SecurityTracker Alert ID: 1038787 |
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SecurityTracker URL: http://securitytracker.com/id/1038787
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CVE Reference:
CVE-2017-7482
(Links to External Site)
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Date: Jun 26 2017
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Impact:
Execution of arbitrary code via local system, User access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Description:
A vulnerability was reported in the Linux kernel. A local user can obtain elevated privileges on the target system.
A local user can create a specially crafted Kerberos 5 ticket that, when decoded by the target system to be loaded into a RxRPC key, will trigger a buffer overflow and potentially execute arbitrary code on the target system with elevated privileges.
Shi Lei, Qihoo 360 Inc., reported this vulnerability.
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Impact:
A local user can obtain elevated privileges on the target system.
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Solution:
The vendor has issued a source code fix, available at:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0
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Vendor URL: www.kernel.org/ (Links to External Site)
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Cause:
Boundary error
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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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