Linux kernel utrace support denial of service
| kernel-utracesupport-dos (34128) |  Medium Risk |
Description:
Linux kernel is vulnerable to a denial of service, caused by an unspecified vulnerability in the utrace support. A local attacker could exploit this vulnerability to consume all available CPU resources and cause the kernel to crash.
*CVSS:
| Base Score: | 3.5 |
| Access Vector: | Local |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Complete |
| Temporal Score: | 2.6 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
For Red Hat Linux (kernel):
Refer to RHSA-2007:0169-2 for patch, upgrade, or suggested workaround information. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
References:
- The Linux Kernel Archives Web site: The Linux Kernel Archives.
- BID-23720: Linux Kernel UTrace Unspecified Local Denial of Service Vulnerability
- CVE-2007-0771: The utrace support in Linux kernel 2.6.18, and other versions, allows local users to cause a denial of service (system hang) related to MT exec + utrace_attach spin failure mode
- RHSA-2007-0169: Important: kernel security and bug fix update
- SECTRACK ID: 1017979: Linux Kernel utrace Bug Lets Local Users Deny Service
Platforms Affected:
- Linux Linux Kernel 2.6.18 rc6
- Linux Linux Kernel 2.6.18 rc5
- Linux Linux Kernel 2.6.18 rc4
- Linux Linux Kernel 2.6.18 rc3
- Linux Linux Kernel 2.6.18 rc1
- Linux Linux Kernel 2.6.18
- Linux Linux Kernel 2.6.18 rc2
- Linux Linux Kernel 2.6.18 rc7
- Linux Linux Kernel 2.6.18.1
- Linux Linux Kernel 2.6.18.2
- Linux Linux Kernel 2.6.18.3
- Linux Linux Kernel 2.6.18.4
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 5 Client
- RedHat Enterprise Linux 5 Client Workstation
- RedHat Enterprise Linux Desktop 5.0
Reported:
Apr 30, 2007
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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.