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TITLE:
Microsoft Office Excel Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA37500

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/37500/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=37500

RELEASE DATE:
2010-06-08

DISCUSS ADVISORY:
http://secunia.com/advisories/37500/#comments

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

http://secunia.com/advisories/37500/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=37500

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:
Multiple vulnerabilities have been reported in Microsoft Office
Excel, which can be exploited by malicious, local users to gain
escalated privileges or by malicious people to compromise a user's
system.

1) Insufficient input validation when parsing a certain record type
may lead to a variety of errors including corruption of data on the
stack.

2) An uninitialised variable being used while copying data during
parsing of certain records may cause a buffer overflow.

3) An unspecified error when parsing certain records can be exploited
to corrupt memory.

4) An error when parsing OBJ records can be exploited to cause a
stack-based buffer overflow.

5) An unspecified error when parsing certain records can be exploited
to corrupt memory.

6) An unspecified error when parsing certain records can be exploited
to corrupt memory.

7) An unspecified error when parsing RTD records can be exploited to
corrupt memory.

8) An unspecified error when parsing certain records can be exploited
to corrupt memory.

9) An unspecified error when parsing HFPicture records can be
exploited to corrupt memory.

10) An unspecified error when parsing certain records can be
exploited to corrupt memory.

11) An unspecified error when parsing certain records can be
exploited to corrupt memory.

12) An unspecified error when parsing chart sheet substreams can be
exploited to corrupt memory.

13) An unspecified error when parsing certain records can be
exploited to corrupt memory.

Successful exploitation of vulnerabilities #1 through #13 may allow
execution of arbitrary code.

14) Open XML File Format Converter for Mac installs itself
insecurely, changing the file system ACLs on the "/Applications"
folder in a way that allows all access to the files in the folder.
This can e.g. be exploited by local users to replace files with
malicious executables and wait for another user to run them.

SOLUTION:
Apply patches.

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

PROVIDED AND/OR DISCOVERED BY:
1, 2) Carsten Eiram, Secunia Research.

The vendor credits:
3) An anonymous person, working with ZDI.
4-11) Nicolas Joly, Vupen.
12) Bing Liu, Fortinet FortiGuard Labs.
13) An anonymous person, working with ZDI.
14) Rick Glaspie

ORIGINAL ADVISORY:
MS10-038 (KB982133, KB982299, KB982308, KB982331, KB982333,
KB2027452, KB2028864, KB2028866, KB2078051):
http://www.microsoft.com/technet/security/bulletin/ms10-038.mspx

Secunia Research:
http://secunia.com/secunia_research/2009-54/
http://secunia.com/secunia_research/2009-59/

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:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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