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CVE-2008-3534

Publication date 8 August 2008

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

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.

From the Ubuntu Security Team

It was discovered that the tmpfs implementation did not correctly handle certain sequences of inode operations. A local attacker could exploit this to crash the system, leading to a denial of service.

Status

Package Ubuntu Release Status
linux 8.04 LTS hardy
Fixed 2.6.24-21.43
7.10 gutsy Not in release
7.04 feisty Not in release
6.06 LTS dapper Not in release
linux-source-2.6.15 8.04 LTS hardy Not in release
7.10 gutsy Not in release
7.04 feisty Not in release
6.06 LTS dapper
Fixed 2.6.15-52.73
linux-source-2.6.20 8.04 LTS hardy Not in release
7.10 gutsy Not in release
7.04 feisty Ignored end of life
6.06 LTS dapper Not in release
linux-source-2.6.22 8.04 LTS hardy Not in release
7.10 gutsy
Fixed 2.6.22-15.59
7.04 feisty Not in release
6.06 LTS dapper Not in release

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
linux

References

Related Ubuntu Security Notices (USN)

    • USN-659-1
    • Linux kernel vulnerabilities
    • 27 October 2008

Other references