Bug 237347 - (CVE-2007-2893) CVE-2007-2893 xen NE2000 RX Frame Heap Overflow
CVE-2007-2893 xen NE2000 RX Frame Heap Overflow
Status: CLOSED NOTABUG
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Don Dutile
impact=moderate,source=vendorsec,repo...
: Security
Depends On: 237470
Blocks:
  Show dependency treegraph
 
Reported: 2007-04-20 17:52 EDT by Marcel Holtmann
Modified: 2007-11-02 05:42 EDT (History)
3 users (show)

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Doc Type: Bug Fix
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Last Closed: 2007-11-02 05:42:08 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Marcel Holtmann 2007-04-20 17:52:54 EDT
A large value in the TXCNT register to exceed the available memory on
the device, this allows an attacker with root privileges in the guest
to poke unexpected data into the device, which results in a complete
compromise of the bochs process (see bx_ne2k_c::rx_frame(), where
s.mem is 32768 bytes, and values up to 0xffff can be inserted into
parameter iolen via the TXCNT register)
Comment 2 RHEL Product and Program Management 2007-05-04 09:25:26 EDT
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.
Comment 3 Mark J. Cox (Product Security) 2007-09-19 09:32:30 EDT
Public via http://taviso.decsystem.org/virtsec.pdf
note that NE2000 is not enabled by default, see
http://lists.xensource.com/archives/html/xen-devel/2007-05/msg00021.html
Comment 5 Mark J. Cox (Product Security) 2007-09-24 04:43:02 EDT
Not vulnerable. This issue did not affect Xen as shipped with Red Hat Enterprise
Linux 5.

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