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TITLE:
LibreOffice XML Manifest Handling Buffer Overflow Vulnerabilities

SECUNIA ADVISORY ID:
SA50142

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/50142/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50142

RELEASE DATE:
2012-08-02

DISCUSS ADVISORY:
http://secunia.com/advisories/50142/#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/50142/

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=50142

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 LibreOffice, which can
be exploited by malicious people to compromise a user's system.

1) An error when handling tag hierarchy within an XML manifest file
can be exploited to cause a heap-based buffer overflow.

2) A boundary error when duplicating certain tags within an XML
manifest file can be exploited to cause a heap-based buffer
overflow.

3) An error within the Base64 decoder implementation when exporting
an XML manifest file can be exploited to cause a heap-based buffer
overflow.

Successful exploitation of the vulnerabilities may allow execution of
arbitrary code, but requires tricking a user into opening a specially
crafted ODF file.

The vulnerabilities are reported in versions prior to 3.5.5 and
3.6.0.

SOLUTION:
Update to version 3.5.5 or 3.6.0.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Timo Warns, PRE-CERT.

ORIGINAL ADVISORY:
http://www.libreoffice.org/advisories/CVE-2012-2665/

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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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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