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Vulnerability Details : CVE-2014-3468

The asn1_get_bit_der function in GNU Libtasn1 before 3.6 does not properly report an error when a negative bit length is identified, which allows context-dependent attackers to cause out-of-bounds access via crafted ASN.1 data.
Publish Date : 2014-06-05 Last Update Date : 2014-11-13
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 189

- Related OVAL Definitions

Title Definition Id Class Family
DSA-3056-1 libtasn1-3 - security update oval:org.mitre.oval:def:27230 unix
ELSA-2014-0594 -- gnutls security update (important) oval:org.mitre.oval:def:27012 unix
ELSA-2014-0596 -- libtasn1 security update (moderate) oval:org.mitre.oval:def:27099 unix
ELSA-2014-0687 -- libtasn1 security update (moderate) oval:org.mitre.oval:def:27097 unix
ELSA-2014:0594: gnutls security update (Important) oval:org.mitre.oval:def:24517 unix
ELSA-2014:0596: libtasn1 security update (Moderate) oval:org.mitre.oval:def:25168 unix
RHSA-2014:0594: gnutls security update (Important) oval:org.mitre.oval:def:24734 unix
RHSA-2014:0594: gnutls security update (Important) oval:com.redhat.rhsa:def:20140594 unix
RHSA-2014:0596: libtasn1 security update (Moderate) oval:org.mitre.oval:def:23897 unix
RHSA-2014:0596: libtasn1 security update (Moderate) oval:com.redhat.rhsa:def:20140596 unix
RHSA-2014:0687: libtasn1 security update (Moderate) oval:com.redhat.rhsa:def:20140687 unix
RHSA-2014:0687: libtasn1 security update (Moderate) oval:org.mitre.oval:def:25259 unix
SUSE-SU-2014:0788-2 -- Security update for GnuTLS oval:org.mitre.oval:def:26205 unix
SUSE-SU-2014:0788-1 -- Security update for GnuTLS oval:org.mitre.oval:def:26125 unix
SUSE-SU-2014:0758-1 -- Security update for gnutls oval:org.mitre.oval:def:25314 unix
SUSE-SU-2014:0931-1 -- Security update for libtasn1 oval:org.mitre.oval:def:26142 unix
USN-2294-1 -- libtasn1-3, libtasn1-6 vulnerabilities oval:org.mitre.oval:def:26079 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2014-3468

# Product Type Vendor Product Version Update Edition Language
1 Application GNU Gnutls Version Details Vulnerabilities
2 Application GNU Libtasn1 3.0 Version Details Vulnerabilities
3 Application GNU Libtasn1 3.1 Version Details Vulnerabilities
4 Application GNU Libtasn1 3.2 Version Details Vulnerabilities
5 Application GNU Libtasn1 3.3 Version Details Vulnerabilities
6 Application GNU Libtasn1 3.4 Version Details Vulnerabilities
7 Application GNU Libtasn1 3.5 Version Details Vulnerabilities
8 OS Redhat Enterprise Linux 5 Version Details Vulnerabilities
9 OS Redhat Enterprise Linux 6 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
GNU Gnutls 1
GNU Libtasn1 6
Redhat Enterprise Linux 2

- References For CVE-2014-3468

http://linux.oracle.com/errata/ELSA-2014-0594.html CONFIRM
http://secunia.com/advisories/58591
SECUNIA 58591
http://rhn.redhat.com/errata/RHSA-2014-0815.html
REDHAT RHSA-2014:0815
http://lists.gnu.org/archive/html/help-libtasn1/2014-05/msg00006.html
MLIST [help-libtasn1] 20140525 GNU Libtasn1 3.6 released
http://rhn.redhat.com/errata/RHSA-2014-0594.html
REDHAT RHSA-2014:0594
http://linux.oracle.com/errata/ELSA-2014-0596.html CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1102323 CONFIRM
http://www.debian.org/security/2014/dsa-3056
DEBIAN DSA-3056
http://secunia.com/advisories/61888
SECUNIA 61888
http://secunia.com/advisories/60415
SECUNIA 60415
http://secunia.com/advisories/59057
SECUNIA 59057
http://rhn.redhat.com/errata/RHSA-2014-0596.html
REDHAT RHSA-2014:0596
http://secunia.com/advisories/58614
SECUNIA 58614
http://git.savannah.gnu.org/cgit/libtasn1.git/commit/?id=1c3ccb3e040bf13e342ee60bc23b21b97b11923f CONFIRM
http://secunia.com/advisories/59021
SECUNIA 59021

- Metasploit Modules Related To CVE-2014-3468

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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