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Home >> Browse Vulnerability Assessment Database >> Debian Local Security Checks >> [DSA470] DSA-470-1 linux-kernel-2.4.17-hppa


Vulnerability Assessment Details

[DSA470] DSA-470-1 linux-kernel-2.4.17-hppa

Vulnerability Assessment Summary
DSA-470-1 linux-kernel-2.4.17-hppa

Detailed Explanation for this Vulnerability Assessment

Several local root exploits have been discovered recently in the Linux
kernel. This security advisory updates the hppa kernel 2.4.17 for
Debian GNU/Linux. The Common Vulnerabilities and Exposures project
identifies the following problems that are fixed with this update:
An integer overflow in brk() system call (do_brk() function) for
Linux permits a local attacker to gain root rights. Fixed
upstream in Linux 2.4.23.
Paul Starzetz discovered a flaw in bounds checking in mremap() in
the Linux kernel (present in version 2.4.x and 2.6.x) which may
permit a local attacker to gain root rights. Version 2.2 is not
affected by this bug. Fixed upstream in Linux 2.4.24.
Paul Starzetz and Wojciech Purczynski of isec.pl discovered a
critical security vulnerability in the memory management code of
Linux inside the mremap(2) system call. Due to missing function
return value check of internal functions a local attacker can gain
root rights. Fixed upstream in Linux 2.4.25 and 2.6.3.
For the stable distribution (woody) these problems have been fixed in
version 32.3 of kernel-image-2.4.17-hppa.
For the unstable distribution (sid) these problems have been fixed in
version 2.4.25-1 of kernel-image-2.4.25-hppa.
We recommend that you upgrade your Linux kernel packages immediately.
Vulnerability matrix for CVE-2004-0077


Solution : http://www.debian.org/security/2004/dsa-470
Network Security Threat Level: High

Networks Security ID: 9138, 9356, 9686

Vulnerability Assessment Copyright: This script is (C) 2005 Michel Arboi

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