RHEL 2.1 / 3 / 4 : util-linux and mount (RHSA-2005:782)

high Nessus Plugin ID 20048

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

Updated util-linux and mount packages that fix two security issues are now available.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The util-linux package contains a large variety of low-level system utilities that are necessary for a Linux system to function.

The mount package contains the mount, umount, swapon and swapoff programs.

A bug was found in the way the umount command is executed by normal users. It may be possible for a user to gain elevated privileges if the user is able to execute the 'umount -r' command on a mounted file system. The file system will be re-mounted only with the 'readonly' flag set, clearing flags such as 'nosuid' and 'noexec'. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2005-2876 to this issue.

This update also fixes a hardlink bug in the script command for Red Hat Enterprise Linux 2.1. If a local user places a hardlinked file named 'typescript' in a directory they have write access to, the file will be overwritten if the user running script has write permissions to the destination file. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2001-1494 to this issue.

All users of util-linux and mount should upgrade to these updated packages, which contain backported patches to correct these issues.

Solution

Update the affected losetup, mount and / or util-linux packages.

See Also

https://access.redhat.com/security/cve/cve-2001-1494

https://access.redhat.com/security/cve/cve-2005-2876

https://access.redhat.com/errata/RHSA-2005:782

Plugin Details

Severity: High

ID: 20048

File Name: redhat-RHSA-2005-782.nasl

Version: 1.27

Type: local

Agent: unix

Published: 10/19/2005

Updated: 1/14/2021

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

Temporal Vector: E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:losetup, p-cpe:/a:redhat:enterprise_linux:mount, p-cpe:/a:redhat:enterprise_linux:util-linux, cpe:/o:redhat:enterprise_linux:2.1, cpe:/o:redhat:enterprise_linux:3, cpe:/o:redhat:enterprise_linux:4

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 10/11/2005

Vulnerability Publication Date: 12/31/2001

Reference Information

CVE: CVE-2001-1494, CVE-2005-2876

BID: 14816

RHSA: 2005:782