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CVE-2004-0077

Status Entry

Overview

The do_mremap function for the mremap system call in Linux 2.2 to 2.2.25, 2.4 to 2.4.24, and 2.6 to 2.6.2, does not properly check the return value from the do_munmap function when the maximum number of VMA descriptors is exceeded, which allows local users to gain root privileges, a different vulnerability than CAN-2003-0985.

Related Files

isec-0014-mremap-unmap.v2.txt
Posted Mar 2, 2004
Authored by Paul Starzetz | Site isec.pl

A critical security vulnerability has been found in the Linux kernel memory management code inside the mremap(2) system call due to missing function return value check. This bug is completely unrelated to the mremap bug disclosed on 05-01-2004 except concerning the same internal kernel function code. Versions affected: 2.2 up to 2.2.25, 2.4 up to 2.4.24, 2.6 up to 2.6.2.

tags | exploit, kernel
systems | linux
advisories | CVE-2004-0077
SHA-256 | 483ed3b485fe72175ca9d4f6e07e3c8cc8998ed7ee2f98e6a72a1016b9373ac3
isec-0014-mremap-unmap.txt
Posted Feb 18, 2004
Authored by Paul Starzetz | Site isec.pl

A critical security vulnerability has been found in the Linux kernel memory management code inside the mremap(2) system call due to missing function return value check. This bug is completely unrelated to the mremap bug disclosed on 05-01-2004 except concerning the same internal kernel function code. Versions affected: 2.2 up to 2.2.25, 2.4 up to 2.4.24, 2.6 up to 2.6.2.

tags | advisory, kernel
systems | linux
advisories | CVE-2004-0077
SHA-256 | 15e57e93f04e6f6e219e6d6e4da2f41a33f772b68029df65fa0dcaf3e0bde0a7
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