Red Hat Enterprise Linux content accelerator denial of service
| rhel-content-accelerator-dos (38823) |  Low Risk |
Description:
Red Hat Enterprise Linux is vulnerable to a denial of service, caused by a memory leak in the Red Hat Content Accelerator kernel patch. By sending an overly large number of open requests, a local attacker could exploit this vulnerability to consume all available memory resources, resulting in a denial of service.
*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:
Apply the appropriate update for your system. See References.
References:
- Red Hat Bugzilla Bug 315051: CVE-2007-5494 open(O_ATOMICLOOKUP) leaks dentry.
- ASA-2007-537: kernel security and bug fix update (RHSA-2007-1104)
- BID-26657: Red Hat Content Accelerator Memory Leak Local Denial Of Service Vulnerability
- CVE-2007-5494: Memory leak in the Red Hat Content Accelerator kernel patch in Red Hat Enterprise Linux (RHEL) 4 and 5 allows local users to cause a denial of service (memory consumption) via a large number of open requests involving O_ATOMICLOOKUP.
- RHSA-2007-0993: Important: kernel security update
- RHSA-2007-1104: Important: kernel security and bug fix update
- SECTRACK ID: 1019017: Red Hat Content Accelerator Kernel Patch open(O_ATOMICLOOKUP) Function Lets Local Users Deny Service
Platforms Affected:
- RedHat Enterprise Linux 4 AS
- RedHat Enterprise Linux 4 WS
- RedHat Enterprise Linux 4 Desktop
- RedHat Enterprise Linux 4 ES
- RedHat Enterprise Linux 5
- RedHat Enterprise Linux 5 Client
Reported:
Nov 29, 2007
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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.