Xen Heap Overflow in PC-Net II Emulator Lets Local Users on a Guest System Gain Elevated Privileges on the Host System
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SecurityTracker Alert ID: 1034268 |
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SecurityTracker URL: http://securitytracker.com/id/1034268
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CVE Reference:
CVE-2015-7504
(Links to External Site)
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Date: Nov 30 2015
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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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Version(s): 4.3.x, 4.4.x, 4.5.x, 4.6.x
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Description:
A vulnerability was reported in Xen. A local user on the guest system can gain elevated privileges on the host system.
A local user on the guest system that has access to an emulated AMD PC-Net II network device can trigger a heap overflow to execute arbitrary code with the privileges of the target QEMU process.
Systems running x86 HVM guests without stubdomains and that are configured to use the PCNET emulated drivers are affected.
The default configuration is not affected.
Systems running only PV guests are not affected.
ARM systems are not affected.
Qinghao Tang of the Qihoo 360 Marvel Team reported this vulnerability.
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Impact:
A local user on the guest system can gain QEMU privileges on the host system.
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Solution:
The vendor has issued a fix.
The vendor's advisory is available at:
http://xenbits.xen.org/xsa/advisory-162.html
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Vendor URL: xenbits.xen.org/xsa/advisory-162.html (Links to External Site)
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Cause:
Boundary error
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Underlying OS: Linux (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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