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Sicherheit: Mehrere Probleme in qemu
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Name: Mehrere Probleme in qemu
ID: MDVSA-2008:162
Distribution: Mandriva
Plattformen: Mandriva 2008.0, Mandriva 2008.1
Datum: Fr, 8. August 2008, 01:55
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1320
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1321
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1322
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1366
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5729
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5730
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6227
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0928
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1945
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2004
Applikationen: QEMU

Originalnachricht

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_______________________________________________________________________

Mandriva Linux Security Advisory MDVSA-2008:162
http://www.mandriva.com/security/
_______________________________________________________________________

Package : qemu
Date : August 7, 2008
Affected: 2008.0, 2008.1
_______________________________________________________________________

Problem Description:

Multiple vulnerabilities have been found in Qemu.

Multiple heap-based buffer overflows in the cirrus_invalidate_region
function in the Cirrus VGA extension in QEMU 0.8.2, as used in Xen and
possibly other products, might allow local users to execute arbitrary
code via unspecified vectors related to attempting to mark non-existent
regions as dirty, aka the bitblt heap overflow. (CVE-2007-1320)

Integer signedness error in the NE2000 emulator in QEMU 0.8.2,
as used in Xen and possibly other products, allows local users to
trigger a heap-based buffer overflow via certain register values
that bypass sanity checks, aka QEMU NE2000 receive integer signedness
error. (CVE-2007-1321)

QEMU 0.8.2 allows local users to halt a virtual machine by executing
the icebp instruction. (CVE-2007-1322)

QEMU 0.8.2 allows local users to crash a virtual machine via the
divisor operand to the aam instruction, as demonstrated by aam 0x0,
which triggers a divide-by-zero error. (CVE-2007-1366)

The NE2000 emulator in QEMU 0.8.2 allows local users to execute
arbitrary code by writing Ethernet frames with a size larger than
the MTU to the EN0_TCNT register, which triggers a heap-based
buffer overflow in the slirp library, aka NE2000 mtu heap
overflow. (CVE-2007-5729)

Heap-based buffer overflow in QEMU 0.8.2, as used in Xen and possibly
other products, allows local users to execute arbitrary code via
crafted data in the net socket listen option, aka QEMU net socket
heap overflow. (CVE-2007-5730)

QEMU 0.9.0 allows local users of a Windows XP SP2 guest operating
system to overwrite the TranslationBlock (code_gen_buffer) buffer,
and probably have unspecified other impacts related to an overflow,
via certain Windows executable programs, as demonstrated by
qemu-dos.com. (CVE-2007-6227)

Qemu 0.9.1 and earlier does not perform range checks for block
device read or write requests, which allows guest host users with
root privileges to access arbitrary memory and escape the virtual
machine. (CVE-2008-0928)

Changing removable media in QEMU could trigger a bug similar to
CVE-2008-2004, which would allow local guest users to read arbitrary
files on the host by modifying the header of the image to identify
a different format. (CVE-2008-1945) See the diskformat: parameter to
the -usbdevice option.

The drive_init function in QEMU 0.9.1 determines the format of
a raw disk image based on the header, which allows local guest
users to read arbitrary files on the host by modifying the header
to identify a different format, which is used when the guest is
restarted. (CVE-2008-2004) See the -format option.

The updated packages have been patched to fix these issues.
_______________________________________________________________________

References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1320
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1321
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1322
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1366
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5729
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5730
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6227
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-0928
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1945
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2004
_______________________________________________________________________

Updated Packages:

Mandriva Linux 2008.0:
702e54aaf211941953f9aab4aef4f463
2008.0/i586/dkms-kqemu-1.3.0-0.pre11.13.2mdv2008.0.i586.rpm
b1d7cb1057953d7c63c528fdf1034b3a
2008.0/i586/qemu-0.9.0-16.2mdv2008.0.i586.rpm
f1b73fffef10c952f641d922ad626dd4
2008.0/i586/qemu-img-0.9.0-16.2mdv2008.0.i586.rpm
396f94f5b918a8a71d3a6575a9f5ca0b
2008.0/SRPMS/qemu-0.9.0-16.2mdv2008.0.src.rpm

Mandriva Linux 2008.0/X86_64:
f767f76399a5994234d697dbc3f7926a
2008.0/x86_64/dkms-kqemu-1.3.0-0.pre11.13.2mdv2008.0.x86_64.rpm
1e2613cc2158e1c30563585e16857e8c
2008.0/x86_64/qemu-0.9.0-16.2mdv2008.0.x86_64.rpm
63522aa3e6740fbed3b222e71018ffcd
2008.0/x86_64/qemu-img-0.9.0-16.2mdv2008.0.x86_64.rpm
396f94f5b918a8a71d3a6575a9f5ca0b
2008.0/SRPMS/qemu-0.9.0-16.2mdv2008.0.src.rpm

Mandriva Linux 2008.1:
1079fe4cb3f742411a2593f2aaed799c
2008.1/i586/dkms-kqemu-1.3.0-0.pre11.15.2mdv2008.1.i586.rpm
7e999da7698373e37e40866b32703a75
2008.1/i586/qemu-0.9.0-18.2mdv2008.1.i586.rpm
e85fc2c051a7297488fa85d4ec8a7498
2008.1/i586/qemu-img-0.9.0-18.2mdv2008.1.i586.rpm
0495e75ea6296856fb24a3eaea8add4b
2008.1/SRPMS/qemu-0.9.0-18.2mdv2008.1.src.rpm

Mandriva Linux 2008.1/X86_64:
0a06c81553ad1068570c3e6d12a1d47a
2008.1/x86_64/dkms-kqemu-1.3.0-0.pre11.15.2mdv2008.1.x86_64.rpm
04579bc4358470ddb829be94dcd39db0
2008.1/x86_64/qemu-0.9.0-18.2mdv2008.1.x86_64.rpm
c4dd1da01c083fcbb72281e2d37470c4
2008.1/x86_64/qemu-img-0.9.0-18.2mdv2008.1.x86_64.rpm
0495e75ea6296856fb24a3eaea8add4b
2008.1/SRPMS/qemu-0.9.0-18.2mdv2008.1.src.rpm
_______________________________________________________________________

To upgrade automatically use MandrivaUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

All packages are signed by Mandriva for security. You can obtain the
GPG public key of the Mandriva Security Team by executing:

gpg --recv-keys --keyserver pgp.mit.edu 0x22458A98

You can view other update advisories for Mandriva Linux at:

http://www.mandriva.com/security/advisories

If you want to report vulnerabilities, please contact

security_(at)_mandriva.com
_______________________________________________________________________

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Mandriva Security Team
<security*mandriva.com>
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_______________________________________________________
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