48570 : Linux Kernel tmpfs Implementation mm/shmem.c shmem_delete_inode Function Local DoS
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Timeline

Disclosure Date
2008-07-26

Description

<em style='font-weight:bold;'>(Description Provided by <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=2008-3534" target="_blank">CVE</a>)</em> : The shmem_delete_inode function in mm/shmem.c in the tmpfs implementation in the Linux kernel before 2.6.26.1 allows local users to cause a denial of service (system crash) via a certain sequence of file create, remove, and overwrite operations, as demonstrated by the insserv program, related to allocation of "useless pages" and improper maintenance of the i_blocks count.

Classification

Location: Local Access Required
Attack Type: Denial of Service
Impact: Loss of Availability
Disclosure: Vendor Verified

Products

Unknown or Incomplete

References

CVE ID: 2008-3534 (see also: NVD)
Bugtraq ID: 31134
Secunia Advisory ID: 31881 32190 32393
ISS X-Force ID: 44489
Vendor Specific News/Changelog Entry: http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.26.y.git;a=commit;h=14fcc23fdc78e9d32372553ccf21758a9bd56fa1
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.26.1
Other Advisory URL: http://lkml.org/lkml/2008/7/26/71
http://www.debian.org/security/2008/dsa-1636
Mail List Post: https://lists.ubuntu.com/archives/ubuntu-security-announce/2008-October/000767.html
Vendor Specific Solution URL: https://rhn.redhat.com/errata/RHSA-2008-0857.html

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 4.9
Source: nvd.nist.gov | Generated: 2008-08-11 | Disagree?

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