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Debian DSA-417-1 : linux-kernel-2.4.18-powerpc+alpha - missing boundary check

high Nessus Plugin ID 15254

Synopsis

The remote Debian host is missing a security-related update.

Description

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 privileges. Version 2.2 is not affected by this bug.

Andrew Morton discovered a missing boundary check for the brk system call which can be used to craft a local root exploit.

Solution

Upgrade the kernel packages. These problems have been fixed in the upstream version 2.4.24 as well.

For the stable distribution (woody) these problems have been fixed in version 2.4.18-12 for the alpha architecture and in version 2.4.18-1woody3 for the powerpc architecture.

See Also

http://www.debian.org/security/2004/dsa-417

Plugin Details

Severity: High

ID: 15254

File Name: debian_DSA-417.nasl

Version: 1.19

Type: local

Agent: unix

Published: 9/29/2004

Updated: 1/4/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:3.0, p-cpe:/a:debian:debian_linux:kernel-patch-2.4.18-powerpc, p-cpe:/a:debian:debian_linux:kernel-image-2.4.18-1-alpha

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/7/2004

Reference Information

CVE: CVE-2003-0961, CVE-2003-0985

BID: 9356

DSA: 417