|Bugzilla:||595970: CVE-2008-7256 CVE-2010-1643 kernel: nfsd: fix vm overcommit crash|
The MITRE CVE dictionary describes this issue as:
mm/shmem.c in the Linux kernel before 2.6.28-rc8, when strict overcommit is enabled and CONFIG_SECURITY is disabled, does not properly handle the export of shmemfs objects by knfsd, which allows attackers to cause a denial of service (NULL pointer dereference and knfsd crash) or possibly have unspecified other impact via unknown vectors. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-1643.
This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4 and 5 as they did not include nfs-export support for tmpfs. A future kernel update in Red Hat Enterprise MRG will address this issue.
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Red Hat security errata
|MRG Grid for RHEL 5 Server (kernel-rt)||RHSA-2010:0631||August 17, 2010|
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