RHEL 4 : sharutils (RHSA-2005:377)

high Nessus Plugin ID 18147

Synopsis

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

Description

The remote Redhat Enterprise Linux 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2005:377 advisory.

The sharutils package contains a set of tools for encoding and decoding packages of files in binary or text format.

A stack based overflow bug was found in the way shar handles the -o option.
If a user can be tricked into running a specially crafted command, it could lead to arbitrary code execution. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-1772 to this issue.
Please note that this issue does not affect Red Hat Enterprise Linux 4.

Two buffer overflow bugs were found in sharutils. If an attacker can place a malicious 'wc' command on a victim's machine, or trick a victim into running a specially crafted command, it could lead to arbitrary code execution. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2004-1773 to this issue.

A bug was found in the way unshar creates temporary files. A local user could use symlinks to overwrite arbitrary files the victim running unshar has write access to. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2005-0990 to this issue.

All users of sharutils should upgrade to this updated package, which includes backported fixes to correct these issues.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL sharutils package based on the guidance in RHSA-2005:377.

Plugin Details

Severity: High

ID: 18147

File Name: redhat-RHSA-2005-377.nasl

Version: 1.28

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 4/27/2005

Updated: 11/4/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.3

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2004-1773

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2004-1772

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:sharutils, 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

Patch Publication Date: 4/26/2005

Vulnerability Publication Date: 12/31/2004

Reference Information

CVE: CVE-2004-1772, CVE-2004-1773, CVE-2005-0990

RHSA: 2005:377

Detections

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