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CVE-2004-0415

Status Candidate

Overview

Linux kernel does not properly convert 64-bit file offset pointers to 32 bits, which allows local users to access portions of kernel memory.

Related Files

proc_kmem_dump.c
Posted Aug 16, 2004
Authored by iSEC Security Research | Site isec.pl

Proc_kmem_dump is a local exploit for Linux kernels v2.4.0 through 2.4.26 which allows unprivileged users to read kernel memory.

tags | exploit, kernel, local
systems | linux
advisories | CVE-2004-0415
SHA-256 | 4f60007e355fbef80214921ee9684ad4f948ab79890b3bf5b24770cdc6bb647e
Openwall Linux Kernel Patch
Posted Aug 10, 2004
Authored by Solar Designer | Site openwall.com

The Openwall Linux kernel patch is a collection of security "hardening" features for the Linux kernel which can stop most 'cookbook' buffer overflow exploits. The patch can also add more privacy to the system by restricting access to parts of /proc so that users may not see what others are doing. Also tightens down file descriptors 0, 1, and 2, implements process limits and shared memory destruction.

Changes: Corrects the access control check in the Linux kernel which previously wrongly allowed any local user to change the group ownership of arbitrary NFS-exported/imported files (CVE-2004-0497). Also adds a workaround for the file offset pointer races (CVE-2004-0415).
tags | overflow, kernel
systems | linux
advisories | CVE-2004-0497, CVE-2004-0415
SHA-256 | 93acccb9dfe362d3f5fe4bb7dac727680341d124ac1770799631c5005e47afe1
isec-0016-procleaks.txt
Posted Aug 5, 2004
Authored by Paul Starzetz | Site isec.pl

A critical security vulnerability has been found in the Linux kernel code handling 64bit file offset pointers. Successful exploitation allows local users to have access to kernel memory. Kernel series affected are 2.4.26 and below and 2.6.7 and below. Full exploit provided.

tags | exploit, kernel, local
systems | linux
advisories | CVE-2004-0415
SHA-256 | 92706af943a287522ac0045554f0149a454453a2c0f2f0482f4e4f98d714283a
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