Executive Summary

Summary
Title libtirpc security update
Informations
Name RHSA-2013:0884 First vendor Publication 2013-05-30
Vendor RedHat Last vendor Modification 2013-05-30
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:N/AC:M/Au:N/C:N/I:N/A:P)
Cvss Base Score 4.3 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated libtirpc packages that fix one security issue are now available for Red Hat Enterprise Linux 6.

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 Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64

3. Description:

These packages provide a transport-independent RPC (remote procedure call) implementation.

A flaw was found in the way libtirpc decoded RPC requests. A specially-crafted RPC request could cause libtirpc to attempt to free a buffer provided by an application using the library, even when the buffer was not dynamically allocated. This could cause an application using libtirpc, such as rpcbind, to crash. (CVE-2013-1950)

Red Hat would like to thank Michael Armstrong for reporting this issue.

Users of libtirpc should upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications using libtirpc must be restarted for the update to take effect.

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/knowledge/articles/11258

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

948378 - CVE-2013-1950 libtirpc: invalid pointer free leads to rpcbind daemon crash

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2013-0884.html

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-399 Resource Management Errors

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:21121
 
Oval ID: oval:org.mitre.oval:def:21121
Title: RHSA-2013:0884: libtirpc security update (Moderate)
Description: The svc_dg_getargs function in libtirpc 0.2.3 and earlier allows remote attackers to cause a denial of service (rpcbind crash) via a Sun RPC request with crafted arguments that trigger a free of an invalid pointer.
Family: unix Class: patch
Reference(s): RHSA-2013:0884-01
CESA-2013:0884
CVE-2013-1950
 Version: 4
Platform(s): Red Hat Enterprise Linux 6
CentOS Linux 6
 Product(s): libtirpc
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:24021
 
Oval ID: oval:org.mitre.oval:def:24021
Title: ELSA-2013:0884: libtirpc security update (Moderate)
Description: The svc_dg_getargs function in libtirpc 0.2.3 and earlier allows remote attackers to cause a denial of service (rpcbind crash) via a Sun RPC request with crafted arguments that trigger a free of an invalid pointer.
Family: unix Class: patch
Reference(s): ELSA-2013:0884-01
CVE-2013-1950
 Version: 6
Platform(s): Oracle Linux 6
 Product(s): libtirpc
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27505
 
Oval ID: oval:org.mitre.oval:def:27505
Title: DEPRECATED: ELSA-2013-0884 -- libtirpc security update (moderate)
Description: [0.2.1-6_4] - Removed a svc_freeargs() call from svc_dg_freeargs() (bz 953735)
Family: unix Class: patch
Reference(s): ELSA-2013-0884
CVE-2013-1950
 Version: 4
Platform(s): Oracle Linux 6
 Product(s): libtirpc
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 8

Nessus® Vulnerability Scanner

Date Description
2016-02-19 Name : The remote device is missing a vendor-supplied security patch.
File : f5_bigip_SOL19157044.nasl - Type : ACT_GATHER_INFO
2014-11-08 Name : The remote Red Hat host is missing a security update.
File : redhat-RHSA-2013-1076.nasl - Type : ACT_GATHER_INFO
2013-09-04 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2013-199.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2013-0884.nasl - Type : ACT_GATHER_INFO
2013-05-31 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2013-0884.nasl - Type : ACT_GATHER_INFO
2013-05-31 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2013-0884.nasl - Type : ACT_GATHER_INFO
2013-05-31 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20130530_libtirpc_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2013-04-29 Name : The remote Fedora host is missing a security update.
File : fedora_2013-6262.nasl - Type : ACT_GATHER_INFO
2003-03-19 Name : Arbitrary code may be run on the remote server.
File : rpc_xdrmem_bytes.nasl - Type : ACT_DESTRUCTIVE_ATTACK

Alert History

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0
1
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Date Informations
2014-02-17 11:57:15
  • Multiple Updates
2013-07-10 17:30:55
  • Multiple Updates
2013-07-10 00:30:13
  • Multiple Updates
2013-05-30 21:18:41
  • First insertion