KOffice readBigBlockDepot() method PPT integer overflow
| koffice-readbigblockdepot-overflow (30624) |  High Risk |
Description:
KOffice is vulnerable to an integer overflow in the KLaola::readBigBlockDepot() method in filters/olefilters/lib/klaola.cc. A remote attacker could exploit this vulnerability to execute arbitrary code on the victim's system or cause the application to crash, if the attacker could persuade a victim to open a specially-crafted PPT file.
*CVSS:
| Base Score: | 7 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.2 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of KOffice (version 1.6.1 or later), available from the KOffice Project Web site. See References.
For Ubuntu Linux:
Refer to USN-388-1 for patch, upgrade, or suggested workaround information. See References.
For Mandriva Linux:
Refer to Mandriva Advisory MDKSA-2006:222 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200612-05 for patch, upgrade, or suggested workaround information. See References.
For Red Hat Linux (koffice):
Refer to RHSA-2007:0010 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for patch or upgrade information.
References:
- BugTraq Mailing List, Tue Dec 05 2006 - 04:49:11 CST: [KOffice security advisory] KOffice OLEfilter integer overflow.
- The KOffice Project Web site: KOffice 1.6.1 Changelog.
- ASA-2007-123: koffice security update (RHSA-2007-0010)
- BID-21354: KOffice PPT Files Integer Overflow Vulnerability
- CVE-2006-6120: Integer overflow in the KPresenter import filter for Microsoft PowerPoint files (filters/olefilters/lib/klaola.cc) in KOffice before 1.6.1 allows user-assisted remote attackers to execute arbitrary code via a crafted PPT file, which results in a heap-based buffer overflow.
- GLSA-200612-05: KOffice shared libraries: Heap corruption
- MDKSA-2006:222: Updated koffice packages fixes integer overflow vulnerability
- RHSA-2007-0010: Moderate: koffice security update
- SA23143: KOffice PowerPoint Files Integer Overflow Vulnerability
- SA23409: SUSE Update for Multiple Packages
- SECTRACK ID: 1017318: KOffice Integer Overflow in KPresenter May Let Remote Users Execute Arbitrary Code
- SUSE-SR:2006:029: SUSE Security Summary Report
- USN-388-1: KOffice vulnerability
- VUPEN/ADV-2006-4771: KOffice KLaola::readBigBlockDepot() PPT Handling Integer Overflow Vulnerability
Platforms Affected:
- Canonical Ubuntu 5.10
- Gentoo Linux
- KDE KOffice prior to 1.6.1
- MandrakeSoft Mandrake Linux 2007
- MandrakeSoft Mandrake Linux 2007 X86_64
- RedHat Enterprise Linux 2.1 AS
- RedHat Enterprise Linux 2.1 ES
- RedHat Enterprise Linux 2.1 WS
- RedHat Linux Advanced Workstation 2.1 Itanium
Reported:
Nov 29, 2006
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.