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CVE-2003-0985

Status Entry

Overview

The mremap system call (do_mremap) in Linux kernel 2.4.x before 2.4.21, and possibly other versions before 2.4.24, does not properly perform bounds checks, which allows local users to cause a denial of service and possibly gain privileges by causing a remapping of a virtual memory area (VMA) to create a zero length VMA, a different vulnerability than CAN-2004-0077.

Related Files

isec-0013v2-mremap.txt
Posted Jan 15, 2004
Authored by Wojciech Purczynski, Paul Starzetz | Site isec.pl

The mremap system call in the Linux kernel memory management code has a critical security vulnerability due to incorrect bounds checking. Proper exploitation of this vulnerability may lead to local privilege escalation including execution of arbitrary code with kernel level access. Updated version of the original release of this document.

tags | advisory, arbitrary, kernel, local
systems | linux
advisories | CVE-2003-0985
SHA-256 | 0a4e3c81dc818181f880893f3f4e1c339b5517ada7d7b0d09c8ac1ddf34cbe95
isec-0013-mremap.txt
Posted Jan 5, 2004
Authored by Wojciech Purczynski, Paul Starzetz | Site isec.pl

The mremap system call in the Linux kernel memory management code has a critical security vulnerability due to incorrect bounds checking. Proper exploitation of this vulnerability may lead to local privilege escalation including execution of arbitrary code with kernel level access.

tags | advisory, arbitrary, kernel, local
systems | linux
advisories | CVE-2003-0985
SHA-256 | 1f3565207e96102d6a63c660b43ba3e8e06061f744c34c3ff6a6df7a1d02e5ef
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