Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Summary
Title libtasn1 security update
Informations
Name RHSA-2014:0687 First vendor Publication 2014-06-10
Vendor RedHat Last vendor Modification 2014-06-10
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:P/I:P/A:P)
Cvss Base Score 6.8 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 8.6 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

Updated libtasn1 packages that fix three security issues are now available for Red Hat Enterprise Linux 7.

The Red Hat Security Response Team has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

The libtasn1 library provides Abstract Syntax Notation One (ASN.1) parsing and structures management, and Distinguished Encoding Rules (DER) encoding and decoding functions.

It was discovered that the asn1_get_bit_der() function of the libtasn1 library incorrectly reported the length of ASN.1-encoded data. Specially crafted ASN.1 input could cause an application using libtasn1 to perform an out-of-bounds access operation, causing the application to crash or, possibly, execute arbitrary code. (CVE-2014-3468)

Multiple incorrect buffer boundary check issues were discovered in libtasn1. Specially crafted ASN.1 input could cause an application using libtasn1 to crash. (CVE-2014-3467)

Multiple NULL pointer dereference flaws were found in libtasn1's asn1_read_value() function. Specially crafted ASN.1 input could cause an application using libtasn1 to crash, if the application used the aforementioned function in a certain way. (CVE-2014-3469)

Red Hat would like to thank GnuTLS upstream for reporting these issues.

All libtasn1 users are advised to upgrade to these updated packages, which correct these issues. For the update to take effect, all applications linked to the libtasn1 library must be restarted.

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/site/articles/11258

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

1102022 - CVE-2014-3467 libtasn1: multiple boundary check issues 1102323 - CVE-2014-3468 libtasn1: asn1_get_bit_der() can return negative bit length 1102329 - CVE-2014-3469 libtasn1: asn1_read_value_type() NULL pointer dereference

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2014-0687.html

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-476 NULL Pointer Dereference
50 % CWE-131 Incorrect Calculation of Buffer Size (CWE/SANS Top 25)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:23897
 
Oval ID: oval:org.mitre.oval:def:23897
Title: RHSA-2014:0596: libtasn1 security update (Moderate)
Description: The libtasn1 library provides Abstract Syntax Notation One (ASN.1) parsing and structures management, and Distinguished Encoding Rules (DER) encoding and decoding functions. It was discovered that the asn1_get_bit_der() function of the libtasn1 library incorrectly reported the length of ASN.1-encoded data. Specially crafted ASN.1 input could cause an application using libtasn1 to perform an out-of-bounds access operation, causing the application to crash or, possibly, execute arbitrary code. (CVE-2014-3468) Multiple incorrect buffer boundary check issues were discovered in libtasn1. Specially crafted ASN.1 input could cause an application using libtasn1 to crash. (CVE-2014-3467) Multiple NULL pointer dereference flaws were found in libtasn1's asn1_read_value() function. Specially crafted ASN.1 input could cause an application using libtasn1 to crash, if the application used the aforementioned function in a certain way. (CVE-2014-3469) Red Hat would like to thank GnuTLS upstream for reporting these issues. All libtasn1 users are advised to upgrade to these updated packages, which correct these issues. For the update to take effect, all applications linked to the libtasn1 library must be restarted.
Family: unix Class: patch
Reference(s): RHSA-2014:0596-00
CESA-2014:0596
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 3
Platform(s): Red Hat Enterprise Linux 6
CentOS Linux 6
Product(s): libtasn1
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:24517
 
Oval ID: oval:org.mitre.oval:def:24517
Title: ELSA-2014:0594: gnutls security update (Important)
Description: The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS). The gnutls packages also include the libtasn1 library, which provides Abstract Syntax Notation One (ASN.1) parsing and structures management, and Distinguished Encoding Rules (DER) encoding and decoding functions. A flaw was found in the way GnuTLS parsed session IDs from ServerHello messages of the TLS/SSL handshake. A malicious server could use this flaw to send an excessively long session ID value, which would trigger a buffer overflow in a connecting TLS/SSL client application using GnuTLS, causing the client application to crash or, possibly, execute arbitrary code. (CVE-2014-3466) It was discovered that the asn1_get_bit_der() function of the libtasn1 library incorrectly reported the length of ASN.1-encoded data. Specially crafted ASN.1 input could cause an application using libtasn1 to perform an out-of-bounds access operation, causing the application to crash or, possibly, execute arbitrary code. (CVE-2014-3468) Multiple incorrect buffer boundary check issues were discovered in libtasn1. Specially crafted ASN.1 input could cause an application using libtasn1 to crash. (CVE-2014-3467) Multiple NULL pointer dereference flaws were found in libtasn1's asn1_read_value() function. Specially crafted ASN.1 input could cause an application using libtasn1 to crash, if the application used the aforementioned function in a certain way. (CVE-2014-3469) Red Hat would like to thank GnuTLS upstream for reporting these issues. Upstream acknowledges Joonas Kuorilehto of Codenomicon as the original reporter of CVE-2014-3466. Users of GnuTLS are advised to upgrade to these updated packages, which correct these issues. For the update to take effect, all applications linked to the GnuTLS or libtasn1 library must be restarted.
Family: unix Class: patch
Reference(s): ELSA-2014:0594-00
CVE-2014-3466
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 4
Platform(s): Oracle Linux 5
Product(s): gnutls
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:24734
 
Oval ID: oval:org.mitre.oval:def:24734
Title: RHSA-2014:0594: gnutls security update (Important)
Description: The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS). The gnutls packages also include the libtasn1 library, which provides Abstract Syntax Notation One (ASN.1) parsing and structures management, and Distinguished Encoding Rules (DER) encoding and decoding functions. A flaw was found in the way GnuTLS parsed session IDs from ServerHello messages of the TLS/SSL handshake. A malicious server could use this flaw to send an excessively long session ID value, which would trigger a buffer overflow in a connecting TLS/SSL client application using GnuTLS, causing the client application to crash or, possibly, execute arbitrary code. (CVE-2014-3466) It was discovered that the asn1_get_bit_der() function of the libtasn1 library incorrectly reported the length of ASN.1-encoded data. Specially crafted ASN.1 input could cause an application using libtasn1 to perform an out-of-bounds access operation, causing the application to crash or, possibly, execute arbitrary code. (CVE-2014-3468) Multiple incorrect buffer boundary check issues were discovered in libtasn1. Specially crafted ASN.1 input could cause an application using libtasn1 to crash. (CVE-2014-3467) Multiple NULL pointer dereference flaws were found in libtasn1's asn1_read_value() function. Specially crafted ASN.1 input could cause an application using libtasn1 to crash, if the application used the aforementioned function in a certain way. (CVE-2014-3469) Red Hat would like to thank GnuTLS upstream for reporting these issues. Upstream acknowledges Joonas Kuorilehto of Codenomicon as the original reporter of CVE-2014-3466. Users of GnuTLS are advised to upgrade to these updated packages, which correct these issues. For the update to take effect, all applications linked to the GnuTLS or libtasn1 library must be restarted.
Family: unix Class: patch
Reference(s): RHSA-2014:0594-00
CESA-2014:0594
CVE-2014-3466
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 3
Platform(s): Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): gnutls
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:25168
 
Oval ID: oval:org.mitre.oval:def:25168
Title: ELSA-2014:0596: libtasn1 security update (Moderate)
Description: The libtasn1 library provides Abstract Syntax Notation One (ASN.1) parsing and structures management, and Distinguished Encoding Rules (DER) encoding and decoding functions. It was discovered that the asn1_get_bit_der() function of the libtasn1 library incorrectly reported the length of ASN.1-encoded data. Specially crafted ASN.1 input could cause an application using libtasn1 to perform an out-of-bounds access operation, causing the application to crash or, possibly, execute arbitrary code. (CVE-2014-3468) Multiple incorrect buffer boundary check issues were discovered in libtasn1. Specially crafted ASN.1 input could cause an application using libtasn1 to crash. (CVE-2014-3467) Multiple NULL pointer dereference flaws were found in libtasn1's asn1_read_value() function. Specially crafted ASN.1 input could cause an application using libtasn1 to crash, if the application used the aforementioned function in a certain way. (CVE-2014-3469) Red Hat would like to thank GnuTLS upstream for reporting these issues. All libtasn1 users are advised to upgrade to these updated packages, which correct these issues. For the update to take effect, all applications linked to the libtasn1 library must be restarted.
Family: unix Class: patch
Reference(s): ELSA-2014:0596-00
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 4
Platform(s): Oracle Linux 6
Product(s): libtasn1
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:25259
 
Oval ID: oval:org.mitre.oval:def:25259
Title: RHSA-2014:0687: libtasn1 security update (Moderate)
Description: The libtasn1 library provides Abstract Syntax Notation One (ASN.1) parsing and structures management, and Distinguished Encoding Rules (DER) encoding and decoding functions. It was discovered that the asn1_get_bit_der() function of the libtasn1 library incorrectly reported the length of ASN.1-encoded data. Specially crafted ASN.1 input could cause an application using libtasn1 to perform an out-of-bounds access operation, causing the application to crash or, possibly, execute arbitrary code. (CVE-2014-3468) Multiple incorrect buffer boundary check issues were discovered in libtasn1. Specially crafted ASN.1 input could cause an application using libtasn1 to crash. (CVE-2014-3467) Multiple NULL pointer dereference flaws were found in libtasn1's asn1_read_value() function. Specially crafted ASN.1 input could cause an application using libtasn1 to crash, if the application used the aforementioned function in a certain way. (CVE-2014-3469) Red Hat would like to thank GnuTLS upstream for reporting these issues. All libtasn1 users are advised to upgrade to these updated packages, which correct these issues. For the update to take effect, all applications linked to the libtasn1 library must be restarted.
Family: unix Class: patch
Reference(s): RHSA-2014:0687-00
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 4
Platform(s): Red Hat Enterprise Linux 7
CentOS Linux 7
Product(s): libtasn1
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:25314
 
Oval ID: oval:org.mitre.oval:def:25314
Title: SUSE-SU-2014:0758-1 -- Security update for gnutls
Description: GnuTLS has been patched to ensure proper parsing of session ids during the TLS/SSL handshake. Additionally, three issues inherited from libtasn1 have been fixed.
Family: unix Class: patch
Reference(s): SUSE-SU-2014:0758-1
CVE-2014-3466
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 3
Platform(s): SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 11
Product(s): gnutls
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26079
 
Oval ID: oval:org.mitre.oval:def:26079
Title: USN-2294-1 -- libtasn1-3, libtasn1-6 vulnerabilities
Description: Libtasn1 could be made to crash or run programs as your login if it processed specially crafted data.
Family: unix Class: patch
Reference(s): USN-2294-1
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 3
Platform(s): Ubuntu 14.04
Ubuntu 12.04
Ubuntu 10.04
Product(s): libtasn1-6
libtasn1-3
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26125
 
Oval ID: oval:org.mitre.oval:def:26125
Title: SUSE-SU-2014:0788-1 -- Security update for GnuTLS
Description: GnuTLS was patched to ensure proper parsing of session ids during the TLS/SSL handshake. Additionally three issues inherited from libtasn1 were fixed.
Family: unix Class: patch
Reference(s): SUSE-SU-2014:0788-1
CVE-2014-3466
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 3
Platform(s): SUSE Linux Enterprise Server 11
Product(s): GnuTLS
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26142
 
Oval ID: oval:org.mitre.oval:def:26142
Title: SUSE-SU-2014:0931-1 -- Security update for libtasn1
Description: libtasn1 has been updated to fix three security issues:asn1_get_bit_der() could have returned negative bit length, Multiple boundary check issues could have allowed DoS, Possible DoS by NULL pointer dereference in asn1_read_value_type.
Family: unix Class: patch
Reference(s): SUSE-SU-2014:0931-1
CVE-2014-3468
CVE-2014-3467
CVE-2014-3469
Version: 3
Platform(s): SUSE Linux Enterprise Server 11
SUSE Linux Enterprise Desktop 11
Product(s): libtasn1
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:26205
 
Oval ID: oval:org.mitre.oval:def:26205
Title: SUSE-SU-2014:0788-2 -- Security update for GnuTLS
Description: GnuTLS has been patched to ensure proper parsing of session ids during the TLS/SSL handshake. Additionally three issues inherited from libtasn1 have been fixed.
Family: unix Class: patch
Reference(s): SUSE-SU-2014:0788-2
CVE-2014-3466
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 3
Platform(s): SUSE Linux Enterprise Server 10
Product(s): GnuTLS
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27012
 
Oval ID: oval:org.mitre.oval:def:27012
Title: DEPRECATED: ELSA-2014-0594 -- gnutls security update (important)
Description: [1.4.1-16] - added missing check for null pointer (#1102355) [1.4.1-15] - fix session ID length check and null pointer dereference (#1102355) - fix minitasn1 issues (#1102355) - Renamed gnutls-1.4.1-cve-2014-5138.patch to cve-2009-5138.patch
Family: unix Class: patch
Reference(s): ELSA-2014-0594
CVE-2014-3466
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 4
Platform(s): Oracle Linux 5
Product(s): gnutls
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27097
 
Oval ID: oval:org.mitre.oval:def:27097
Title: ELSA-2014-0687 -- libtasn1 security update (moderate)
Description: [3.3-5] - Added missing check for null pointer (#1102338) [3.3-4] - Fix multiple decoding issues (#1102338)
Family: unix Class: patch
Reference(s): ELSA-2014-0687
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 3
Platform(s): Oracle Linux 7
Product(s): libtasn1
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27099
 
Oval ID: oval:org.mitre.oval:def:27099
Title: DEPRECATED: ELSA-2014-0596 -- libtasn1 security update (moderate)
Description: [2.3-6] - added check for null pointer (#1102336) [2.3-5] - fix various DER decoding issues (#1102336) [2.3-4] - fix CVE-2012-1569 - missing length check when decoding DER lengths (#804920)
Family: unix Class: patch
Reference(s): ELSA-2014-0596
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 4
Platform(s): Oracle Linux 6
Product(s): libtasn1
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:27230
 
Oval ID: oval:org.mitre.oval:def:27230
Title: DSA-3056-1 libtasn1-3 - security update
Description: Several vulnerabilities were discovered in libtasn1-3, a library that manages ASN1 (Abstract Syntax Notation One) structures. An attacker could use those to cause a denial-of-service via out-of-bounds access or NULL pointer dereference.
Family: unix Class: patch
Reference(s): DSA-3056-1
CVE-2014-3467
CVE-2014-3468
CVE-2014-3469
Version: 3
Platform(s): Debian GNU/Linux 7.0
Debian GNU/kFreeBSD 7.0
Product(s): libtasn1-3
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 277
Application 54
Application 1
Os 1
Os 3
Os 6
Os 3
Os 5
Os 4
Os 3
Os 1
Os 1
Os 4
Os 1

Nessus® Vulnerability Scanner

Date Description
2015-03-30 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2015-116.nasl - Type : ACT_GATHER_INFO
2015-03-26 Name : The remote Debian host is missing a security update.
File : debian_DLA-77.nasl - Type : ACT_GATHER_INFO
2015-01-19 Name : The remote Solaris system is missing a security patch for third-party software.
File : solaris11_libtasn1_20140715.nasl - Type : ACT_GATHER_INFO
2015-01-19 Name : The remote Solaris system is missing a security patch for third-party software.
File : solaris11_gnutls_20141120.nasl - Type : ACT_GATHER_INFO
2014-11-11 Name : The remote Red Hat host is missing a security update.
File : redhat-RHSA-2014-0815.nasl - Type : ACT_GATHER_INFO
2014-10-27 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3056.nasl - Type : ACT_GATHER_INFO
2014-10-12 Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2014-359.nasl - Type : ACT_GATHER_INFO
2014-08-30 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201408-09.nasl - Type : ACT_GATHER_INFO
2014-07-30 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2014-0687.nasl - Type : ACT_GATHER_INFO
2014-07-24 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_libtasn1-140717.nasl - Type : ACT_GATHER_INFO
2014-07-24 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2014-0687.nasl - Type : ACT_GATHER_INFO
2014-07-23 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-2294-1.nasl - Type : ACT_GATHER_INFO
2014-06-10 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2014-107.nasl - Type : ACT_GATHER_INFO
2014-06-10 Name : The remote Fedora host is missing a security update.
File : fedora_2014-6919.nasl - Type : ACT_GATHER_INFO
2014-06-06 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2014-156-02.nasl - Type : ACT_GATHER_INFO
2014-06-06 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2014-156-01.nasl - Type : ACT_GATHER_INFO
2014-06-05 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_gnutls-140603.nasl - Type : ACT_GATHER_INFO
2014-06-05 Name : The remote Fedora host is missing a security update.
File : fedora_2014-6895.nasl - Type : ACT_GATHER_INFO
2014-06-05 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2014-0596.nasl - Type : ACT_GATHER_INFO
2014-06-05 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2014-0594.nasl - Type : ACT_GATHER_INFO
2014-06-04 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2014-0594.nasl - Type : ACT_GATHER_INFO
2014-06-04 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20140603_libtasn1_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2014-06-04 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20140603_gnutls_on_SL5_x.nasl - Type : ACT_GATHER_INFO
2014-06-04 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2014-0596.nasl - Type : ACT_GATHER_INFO
2014-06-04 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2014-0594.nasl - Type : ACT_GATHER_INFO
2014-06-04 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2014-0596.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2014-07-31 13:25:29
  • Multiple Updates
2014-07-25 13:21:57
  • Multiple Updates
2014-06-11 00:21:32
  • First insertion