Linux Kernel LDT denial of service
| linux-kernel-ldt-dos (43979) |  Low Risk |
Description:
Linux Kernel is vulnerable to a denial of service, caused by the improper handling of an LDT buffer size on an x86_64 system. A local attacker could exploit this vulnerability to cause the system to crash or possibly execute arbitrary code on the system with elevated privileges.
*CVSS:
| Base Score: | 2.1 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 1.6 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of Linux Kernel (2.6.25.11 or later), available from The Linux Kernel Archives Web site. See References.
References:
- The Linux Kernel Archives Web site: The Linux Kernel Archives.
- The Linux Kernel Archives Web site: ChangeLog-2.6.25.11.
- BID-30351: Linux Kernel x86_64 Kernel LDT 'ldt_desc' Buffer Overflow Vulnerability
- CVE-2008-3247: The LDT implementation in the Linux kernel 2.6.25.x before 2.6.25.11 on x86_64 platforms uses an incorrect size for ldt_desc, which allows local users to cause a denial of service (system crash) or possibly gain privileges via unspecified vectors.
- SA31172: Linux Kernel LDT Buffer Size Handling Vulnerability
- SECTRACK ID: 1020544: Linux Kernel x86_64 LDT Buffer Overflow May Let Local Users Gain Elevated Privileges
- SUSE-SA:2008:037: Linux kernel security update
Platforms Affected:
- Linux Kernel 2.6.25
- Linux Kernel 2.6.25.1
- Linux Kernel 2.6.25.10
- Linux Kernel 2.6.25.2
- Linux Kernel 2.6.25.3
- Linux Kernel 2.6.25.4
- Linux Kernel 2.6.25.5
- Linux Kernel 2.6.25.6
- Linux Kernel 2.6.25.7
- Linux Kernel 2.6.25.8
- Linux Kernel 2.6.25.9
- Novell OpenSUSE 11.0
Reported:
Jul 22, 2008
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 the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
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.