(McAfee Issues Fix for McAfee Web Gateway) Glibc Stack/Heap Memory Allocation Error Lets Local Users Gain Elevated Privileges
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SecurityTracker Alert ID: 1039052 |
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SecurityTracker URL: http://securitytracker.com/id/1039052
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CVE Reference:
CVE-2017-1000366
(Links to External Site)
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Date: Aug 2 2017
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Impact:
Execution of arbitrary code via local system, Root access via local system, User access via local system
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Fix Available: Yes Vendor Confirmed: Yes
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Version(s): 7.6.2.14 and prior, 7.7.2.2 and prior
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Description:
A vulnerability was reported in Glibc. A local user can obtain elevated privileges on the target system. McAfee Web Gateway is affected.
A local user can supply specially crafted LD_LIBRARY_PATH values to trigger a stack memory allocation flaw in certain cases and execute arbitrary code on the target system with elevated privileges.
The stack guard-page memory gap can be "jumped" in cases where heap memory and stack memory are adjacent.
The original advisory is available at:
https://www.qualys.com/2017/06/19/stack-clash/stack-clash.txt
Qualys Research Labs reported this vulnerability.
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Impact:
A local user can obtain elevated privileges on the target system.
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Solution:
McAfee has issued a fix for CVE-2017-1000366 for McAfee Web Gateway (7.6.2.15, 7.7.2.3).
[Editor's note: The vendor states that default installations that do not have a local shell user are not affected.]
The McAfee advisory is available at:
https://kc.mcafee.com/corporate/index?page=content&id=SB10205
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Vendor URL: kc.mcafee.com/corporate/index?page=content&id=SB10205 (Links to External Site)
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Cause:
Access control error
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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[Original Message Not Available for Viewing]
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