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TITLE:
libguestfs Qemu Disk Format Specifier Weakness

SECUNIA ADVISORY ID:
SA41797

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/41797/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=41797

RELEASE DATE:
2010-10-22

DISCUSS ADVISORY:
http://secunia.com/advisories/41797/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Comments
 * Criticality Level
 * Impact
 * Where
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 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/41797/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=41797

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A weakness has been reported in libguestfs, which can be exploited by
malicious, local users in a guest virtual machine to gain access to
potentially sensitive information.

The weakness is caused due to libguestfs not propagating the image
format to Qemu, which can be exploited by a malicious guest using the
raw image format to e.g. disclose files on the host system.

SOLUTION:
Do not use guests with raw image format.

PROVIDED AND/OR DISCOVERED BY:
Matthew Booth

ORIGINAL ADVISORY:
https://www.redhat.com/archives/libguestfs/2010-October/msg00036.html
https://bugzilla.redhat.com/show_bug.cgi?id=643958

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
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