Hiki diff denial of service
| hiki-diff-dos (27507) |  Medium Risk |
Description:
Hiki is vulnerable to a denial of service caused by an error in the diff function. A remote attacker could perform a diff on two large pages to cause available resources to cause the consumption of large amounts of CPU and memory resources, resulting in a denial of service.
*CVSS:
| Base Score: | 3.5 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 2.6 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Hiki (0.8.6 or later), available from the Hiki Web site. See References.
For Debian GNU/Linux:
Refer to DSA-1119-1 for patch, upgrade, or suggested workaround information. See References.
References:
- Hiki Advisory 2006-07-03: Vurlnerability in Hiki.
- Hiki Web site: Hiki FrontPage.
- JVN#98836916: Wiki (DoS). (Japanese language site)
- BID-18785: Hiki Diff Denial Of Service Vulnerability
- CVE-2006-3379: Algorithmic complexity vulnerability in Hiki Wiki 0.6.0 through 0.6.5 and 0.8.0 through 0.8.5 allows remote attackers to cause a denial of service (CPU consumption) by performing a diff between large, crafted pages that trigger the worst case.
- DSA-1119: hiki -- design flaw
- OSVDB ID: 26970: Hiki Diff Generation Process Consumption DoS
- SA20741: Hiki Diff Denial of Service Vulnerability
- VUPEN/ADV-2006-2643: Hiki Diff Algorithm Large Pages Handling Remote Denial of Service Vulnerability
Platforms Affected:
- Debian Debian Linux 3.1
- Hiki Hiki 0.60 - 0.6.5
- Hiki Hiki 0.8.0 - 0.8.5
Reported:
Jul 03, 2006
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For corrections or additions please email xforce@iss.net
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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.