Executive Summary

Summary
Title systemtap security update
Informations
Name RHSA-2011:1089 First vendor Publication 2011-07-25
Vendor RedHat Last vendor Modification 2011-07-25
Severity (Vendor) Moderate Revision 01

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:H/Au:N/C:P/I:P/A:P)
Cvss Base Score 3.7 Attack Range Local
Cvss Impact Score 6.4 Attack Complexity High
Cvss Expoit Score 1.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated systemtap packages that fix one security issue are now available for Red Hat Enterprise Linux 5.

The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

3. Description:

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.

4. Solution:

Before applying this update, make sure all previously-released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259

5. Bugs fixed (http://bugzilla.redhat.com/):

716489 - CVE-2011-2503 systemtap: signed module loading race condition

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2011-1089.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:15202
 
Oval ID: oval:org.mitre.oval:def:15202
Title: DSA-2348-1 systemtap -- several
Description: Several vulnerabilities were discovered in SystemTap, an instrumentation system for Linux: CVE-2011-2503 It was discovered that a race condition in staprun could lead to privilege escalation. CVE-2010-4170 It was discovered that insufficient validation of environment variables in staprun could lead to privilege escalation. CVE-2010-4171 It was discovered that insufficient validation of module unloading could lead to denial of service.
Family: unix Class: patch
Reference(s): DSA-2348-1
CVE-2010-4170
CVE-2010-4171
CVE-2011-2503
Version: 5
Platform(s): Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
Product(s): systemtap
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:21608
 
Oval ID: oval:org.mitre.oval:def:21608
Title: RHSA-2011:1088: systemtap security update (Moderate)
Description: The insert_module function in runtime/staprun/staprun_funcs.c in the systemtap runtime tool (staprun) in SystemTap before 1.6 does not properly validate a module when loading it, which allows local users to gain privileges via a race condition between the signature validation and the module initialization.
Family: unix Class: patch
Reference(s): RHSA-2011:1088-01
CVE-2011-2502
CVE-2011-2503
Version: 29
Platform(s): Red Hat Enterprise Linux 6
Product(s): systemtap
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:22019
 
Oval ID: oval:org.mitre.oval:def:22019
Title: RHSA-2011:1089: systemtap security update (Moderate)
Description: The insert_module function in runtime/staprun/staprun_funcs.c in the systemtap runtime tool (staprun) in SystemTap before 1.6 does not properly validate a module when loading it, which allows local users to gain privileges via a race condition between the signature validation and the module initialization.
Family: unix Class: patch
Reference(s): RHSA-2011:1089-01
CESA-2011:1089
CVE-2011-2503
Version: 4
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): systemtap
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23350
 
Oval ID: oval:org.mitre.oval:def:23350
Title: ELSA-2011:1089: systemtap security update (Moderate)
Description: The insert_module function in runtime/staprun/staprun_funcs.c in the systemtap runtime tool (staprun) in SystemTap before 1.6 does not properly validate a module when loading it, which allows local users to gain privileges via a race condition between the signature validation and the module initialization.
Family: unix Class: patch
Reference(s): ELSA-2011:1089-01
CVE-2011-2503
Version: 6
Platform(s): Oracle Linux 5
Product(s): systemtap
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23376
 
Oval ID: oval:org.mitre.oval:def:23376
Title: ELSA-2011:1088: systemtap security update (Moderate)
Description: The insert_module function in runtime/staprun/staprun_funcs.c in the systemtap runtime tool (staprun) in SystemTap before 1.6 does not properly validate a module when loading it, which allows local users to gain privileges via a race condition between the signature validation and the module initialization.
Family: unix Class: patch
Reference(s): ELSA-2011:1088-01
CVE-2011-2502
CVE-2011-2503
Version: 13
Platform(s): Oracle Linux 6
Product(s): systemtap
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27710
 
Oval ID: oval:org.mitre.oval:def:27710
Title: DEPRECATED: ELSA-2011-1088 -- systemtap security update (moderate)
Description: [1.4.6.0.1.el6_1.2] - remove doc/SystemTap_Beginners_Guide/en-US in tarball - comment bz683569.patch in specfile [1.4-6.2] - bz716476 (patch) - bz716489 (patch)
Family: unix Class: patch
Reference(s): ELSA-2011-1088
CVE-2011-2502
CVE-2011-2503
Version: 4
Platform(s): Oracle Linux 6
Product(s): systemtap
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28151
 
Oval ID: oval:org.mitre.oval:def:28151
Title: DEPRECATED: ELSA-2011-1089 -- systemtap security update (moderate)
Description: [1.3-9] - bz716489 (patch)
Family: unix Class: patch
Reference(s): ELSA-2011-1089
CVE-2011-2503
Version: 4
Platform(s): Oracle Linux 5
Product(s): systemtap
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 31

OpenVAS Exploits

Date Description
2012-07-30 Name : CentOS Update for systemtap CESA-2011:1089 centos5 x86_64
File : nvt/gb_CESA-2011_1089_systemtap_centos5_x86_64.nasl
2012-06-06 Name : RedHat Update for systemtap RHSA-2011:1088-01
File : nvt/gb_RHSA-2011_1088-01_systemtap.nasl
2012-03-09 Name : Fedora Update for systemtap FEDORA-2012-2218
File : nvt/gb_fedora_2012_2218_systemtap_fc15.nasl
2012-02-11 Name : Debian Security Advisory DSA 2348-1 (systemtap)
File : nvt/deb_2348_1.nasl
2011-09-23 Name : CentOS Update for systemtap CESA-2011:1089 centos5 i386
File : nvt/gb_CESA-2011_1089_systemtap_centos5_i386.nasl
2011-08-02 Name : Fedora Update for systemtap FEDORA-2011-9722
File : nvt/gb_fedora_2011_9722_systemtap_fc15.nasl
2011-08-02 Name : Fedora Update for systemtap FEDORA-2011-9739
File : nvt/gb_fedora_2011_9739_systemtap_fc14.nasl
2011-07-27 Name : RedHat Update for systemtap RHSA-2011:1089-01
File : nvt/gb_RHSA-2011_1089-01_systemtap.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
74148 SystemTap staprun Race Condition Module Loading Local Privilege Escalation

Nessus® Vulnerability Scanner

Date Description
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-1088.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-1089.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110725_systemtap_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110725_systemtap_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2011-11-22 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2348.nasl - Type : ACT_GATHER_INFO
2011-09-23 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2011-1089.nasl - Type : ACT_GATHER_INFO
2011-08-01 Name : The remote Fedora host is missing a security update.
File : fedora_2011-9722.nasl - Type : ACT_GATHER_INFO
2011-08-01 Name : The remote Fedora host is missing a security update.
File : fedora_2011-9739.nasl - Type : ACT_GATHER_INFO
2011-07-26 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1088.nasl - Type : ACT_GATHER_INFO
2011-07-26 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-1089.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 11:54:55
  • Multiple Updates