Family: Debian Local Security Checks --> Category: infos
[DSA440] DSA-440-1 linux-kernel-2.4.17-powerpc-apus Vulnerability Scan
Vulnerability Scan Summary
Detailed Explanation for this Vulnerability Test
Several local root exploits have been discovered recently in the Linux
kernel. This security advisory updates the PowerPC/Apus kernel 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 allows 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
allow 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
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 2.4.17-4 of powerpc/apus images.
Other architectures will probably be mentioned in a separate advisory or
are not affected (m68k).
For the unstable distribution (sid) these problems will be fixed soon.
We recommend that you upgrade your Linux kernel packages immediately.
Solution : http://www.debian.org/security/2004/dsa-440
Threat Level: High
Click HERE for more information and discussions on this network vulnerability scan.