wvWare LFO and LVL count integer overflow
| wvware-lfo-lvl-overflow (29833) |  High Risk |
Description:
The wvWare LFO and LVL counters are vulnerable to an integer overflow in the wvGetLFO_records and wvGetLFO_PLF functions, caused by improper handling of data from a malformed Word document. If a remote attacker could persuade a victim to open a specially-crafted Microsoft Word document with an application that utilizes the WV library, the attacker could overflow a buffer and execute arbitrary code on the victim's system.
*CVSS:
| Base Score: | 5.6 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 4.1 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of vwWare (1.2.3 or later), available from the SourceForge.net Web site. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 200612-01 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for patch or upgrade information.
References:
- iDefense Labs PUBLIC ADVISORY: 10.26.06: Multiple Vendor wvWare LFO Count Integer Overflow Vulnerability.
- iDefense Labs PUBLIC ADVISORY: 10.26.06: Multiple Vendor wvWare LVL Count Integer Overflow Vulnerability.
- SourceForge.net: wvWare.
- BID-20761: wvWare Multiple Integer Overflow Vulnerabilities
- CVE-2006-4513: Multiple integer overflows in the WV library in wvWare (formerly mswordview) before 1.2.3, as used by AbiWord, KWord, and possibly other products, allow user-assisted remote attackers to execute arbitrary code via a crafted Microsoft Word (DOC) file that produces (1) large LFO clfolvl values in the wvGetLFO_records function or (2) a large LFO nolfo value in the wvGetFLO_PLF function.
- GLSA-200612-01: wv library: Multiple integer overflows
- MDKSA-2006:202: Updated wv packages fix vulnerabilities
- SA22595: wvWare Multiple Integer Overflow Vulnerabilities
- SECTRACK ID: 1017126: wvWare Integer Overflows in wvGetLFO_PLF() and wvGetLFO_records() Let Remote Users Execute Arbitrary Code
- SUSE-SR:2006:028: SUSE Security Summary Report
- USN-374-1: wvWare vulnerability
- VUPEN/ADV-2006-4221: wvWare Document Handling Multiple Client-Side Integer Overflow Vulnerabilities
Platforms Affected:
- Canonical Ubuntu 6.10
- Debian Debian Linux 3.1
- Gentoo Linux
- MandrakeSoft Mandrake Linux 2006 X86_64
- MandrakeSoft Mandrake Linux 2006
- MandrakeSoft Mandrake Linux 2007 X86_64
- MandrakeSoft Mandrake Linux 2007
- MandrakeSoft Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft Mandrake Linux Corporate Server 3.0
- wvWare wvWare 1.2.2 and prior
Reported:
Oct 26, 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.