Executive Summary

Summary
Title Libksba vulnerability
Informations
Name USN-2427-1 First vendor Publication 2014-11-27
Vendor Ubuntu Last vendor Modification 2014-11-27
Severity (Vendor) N/A Revision N/A

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:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.10 - Ubuntu 14.04 LTS - Ubuntu 12.04 LTS

Summary:

Libksba could be made to crash or run programs if it opened a specially crafted file.

Software Description: - libksba: X.509 and CMS support library

Details:

Hanno Böck discovered that Libksba incorrectly handled certain S/MIME messages or ECC based OpenPGP data. An attacker could use this issue to cause Libksba to crash, resulting in a denial of service, or possibly execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 14.10:
libksba8 1.3.0-3ubuntu0.14.10.1

Ubuntu 14.04 LTS:
libksba8 1.3.0-3ubuntu0.14.04.1

Ubuntu 12.04 LTS:
libksba8 1.2.0-2ubuntu0.1

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2427-1
CVE-2014-9087

Package Information:
https://launchpad.net/ubuntu/+source/libksba/1.3.0-3ubuntu0.14.10.1
https://launchpad.net/ubuntu/+source/libksba/1.3.0-3ubuntu0.14.04.1
https://launchpad.net/ubuntu/+source/libksba/1.2.0-2ubuntu0.1

Original Source

Url : http://www.ubuntu.com/usn/USN-2427-1

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-191 Integer Underflow (Wrap or Wraparound)

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:28353
 
Oval ID: oval:org.mitre.oval:def:28353
Title: DSA-3078-1 -- libksba security update
Description: An integer underflow flaw, leading to a heap-based buffer overflow, was found in the ksba_oid_to_str() function of libksba, an X.509 and CMS (PKCS#7) library. By using special crafted S/MIME messages or ECC based OpenPGP data, it is possible to create a buffer overflow, which could cause an application using libksba to crash (denial of service), or potentially, execute arbitrary code.
Family: unix Class: patch
Reference(s): DSA-3078-1
CVE-2014-9087
Version: 3
Platform(s): Debian GNU/Linux 7.0
Debian GNU/kFreeBSD 7.0
Product(s): libksba
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:28451
 
Oval ID: oval:org.mitre.oval:def:28451
Title: USN-2427-1 -- Libksba vulnerability
Description: Hanno Böck discovered that Libksba incorrectly handled certain S/MIME messages or ECC based OpenPGP data. An attacker could use this issue to cause Libksba to crash, resulting in a denial of service, or possibly execute arbitrary code.
Family: unix Class: patch
Reference(s): USN-2427-1
CVE-2014-9087
Version: 5
Platform(s): Ubuntu 14.10
Ubuntu 14.04
Ubuntu 12.04
Product(s): libksba
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2
Application 1
Os 3
Os 2
Os 2

Nessus® Vulnerability Scanner

Date Description
2015-03-30 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2015-151.nasl - Type : ACT_GATHER_INFO
2015-03-26 Name : The remote Debian host is missing a security update.
File : debian_DLA-141.nasl - Type : ACT_GATHER_INFO
2014-12-23 Name : The remote openSUSE host is missing a security update.
File : openSUSE-2014-799.nasl - Type : ACT_GATHER_INFO
2014-12-22 Name : The remote SuSE 11 host is missing a security update.
File : suse_11_libksba-141211.nasl - Type : ACT_GATHER_INFO
2014-12-07 Name : The remote Fedora host is missing a security update.
File : fedora_2014-15838.nasl - Type : ACT_GATHER_INFO
2014-12-07 Name : The remote Fedora host is missing a security update.
File : fedora_2014-15863.nasl - Type : ACT_GATHER_INFO
2014-12-06 Name : The remote Fedora host is missing a security update.
File : fedora_2014-15847.nasl - Type : ACT_GATHER_INFO
2014-12-01 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2014-234.nasl - Type : ACT_GATHER_INFO
2014-11-28 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3078.nasl - Type : ACT_GATHER_INFO
2014-11-28 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-2427-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2014-12-02 00:28:05
  • Multiple Updates
2014-12-01 21:30:00
  • Multiple Updates
2014-11-29 13:27:28
  • Multiple Updates
2014-11-27 21:24:09
  • First insertion