RHEL 5 : systemtap (RHSA-2011:1089)

critical Nessus Plugin ID 55685

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Synopsis

The remote Red Hat host is missing a security update for systemtap.

Description

The remote Redhat Enterprise Linux 5 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2011:1089 advisory.

SystemTap is an instrumentation system for systems running the Linux kernel. The system allows developers to write scripts to collect data on the operation of the system.

A race condition flaw was found in the way the staprun utility performed module loading. A local user who is a member of the stapusr group could use this flaw to modify a signed module while it is being loaded, allowing them to escalate their privileges. (CVE-2011-2503)

SystemTap users should upgrade to these updated packages, which contain a backported patch to correct this issue.

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

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

Solution

Update the RHEL systemtap package based on the guidance in RHSA-2011:1089.

Plugin Details

Severity: Critical

ID: 55685

File Name: redhat-RHSA-2011-1089.nasl

Version: 1.17

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 7/26/2011

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: 5.9

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Low

Base Score: 3.7

Temporal Score: 2.7

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

CVSS Score Source: CVE-2011-2503

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:systemtap-initscript, p-cpe:/a:redhat:enterprise_linux:systemtap-testsuite, cpe:/o:redhat:enterprise_linux:5, p-cpe:/a:redhat:enterprise_linux:systemtap-server, p-cpe:/a:redhat:enterprise_linux:systemtap-runtime, p-cpe:/a:redhat:enterprise_linux:systemtap, p-cpe:/a:redhat:enterprise_linux:systemtap-client, p-cpe:/a:redhat:enterprise_linux:systemtap-sdt-devel

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

Patch Publication Date: 7/25/2011

Vulnerability Publication Date: 7/26/2012

Reference Information

CVE: CVE-2011-2503

RHSA: 2011:1089

Detections

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