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Vulnerability Details : CVE-2013-4351

GnuPG 1.4.x, 2.0.x, and 2.1.x treats a key flags subpacket with all bits cleared (no usage permitted) as if it has all bits set (all usage permitted), which might allow remote attackers to bypass intended cryptographic protection mechanisms by leveraging the subkey.
Publish Date : 2013-10-10 Last Update Date : 2014-01-04
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- CVSS Scores & Vulnerability Types

CVSS Score
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 None (There is no impact to the availability of the system.)
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) Bypass a restriction or similar
CWE ID 310

- Related OVAL Definitions

Title Definition Id Class Family
DEPRECATED: ELSA-2013:1459: gnupg2 security update (Moderate) oval:org.mitre.oval:def:23470 unix
DEPRECATED: ELSA-2013-1458 -- gnupg security update (moderate) oval:org.mitre.oval:def:26955 unix
DEPRECATED: ELSA-2013-1459 -- gnupg2 security update (moderate) oval:org.mitre.oval:def:27428 unix
DSA-2773-1 gnupg - several oval:org.mitre.oval:def:19904 unix
DSA-2774-1 gnupg2 - several oval:org.mitre.oval:def:20090 unix
ELSA-2013:1458: gnupg security update (Moderate) oval:org.mitre.oval:def:23451 unix
ELSA-2013:1459: gnupg2 security update (Moderate) oval:org.mitre.oval:def:23894 unix
RHSA-2013:1458: gnupg security update (Moderate) oval:org.mitre.oval:def:20833 unix
RHSA-2013:1458: gnupg security update (Moderate) oval:com.redhat.rhsa:def:20131458 unix
RHSA-2013:1459: gnupg2 security update (Moderate) oval:org.mitre.oval:def:20690 unix
RHSA-2013:1459: gnupg2 security update (Moderate) oval:com.redhat.rhsa:def:20131459 unix
SUSE-SU-2013:1577-1 -- Security update for gpg oval:org.mitre.oval:def:25751 unix
SUSE-SU-2013:1576-1 -- Security update for gpg2 oval:org.mitre.oval:def:25288 unix
SUSE-SU-2013:1578-1 -- Security update for gpg oval:org.mitre.oval:def:24793 unix
SUSE-SU-2014:0750-1 -- Security update for gpg2 oval:org.mitre.oval:def:25338 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-2013-4351

# Product Type Vendor Product Version Update Edition Language
1 Application Gnupg Gnupg 1.4.0 * * * Version Details Vulnerabilities
2 Application Gnupg Gnupg 1.4.2 * * * Version Details Vulnerabilities
3 Application Gnupg Gnupg 1.4.3 * * * Version Details Vulnerabilities
4 Application Gnupg Gnupg 1.4.4 * * * Version Details Vulnerabilities
5 Application Gnupg Gnupg 1.4.5 * * * Version Details Vulnerabilities
6 Application Gnupg Gnupg 1.4.6 * * * Version Details Vulnerabilities
7 Application Gnupg Gnupg 1.4.8 * * * Version Details Vulnerabilities
8 Application Gnupg Gnupg 1.4.10 * * * Version Details Vulnerabilities
9 Application Gnupg Gnupg 1.4.11 * * * Version Details Vulnerabilities
10 Application Gnupg Gnupg 1.4.12 * * * Version Details Vulnerabilities
11 Application Gnupg Gnupg 1.4.13 * * * Version Details Vulnerabilities
12 Application Gnupg Gnupg 2.0 * * * Version Details Vulnerabilities
13 Application Gnupg Gnupg 2.0.1 * * * Version Details Vulnerabilities
14 Application Gnupg Gnupg 2.0.3 * * * Version Details Vulnerabilities
15 Application Gnupg Gnupg 2.0.4 * * * Version Details Vulnerabilities
16 Application Gnupg Gnupg 2.0.5 * * * Version Details Vulnerabilities
17 Application Gnupg Gnupg 2.0.6 * * * Version Details Vulnerabilities
18 Application Gnupg Gnupg 2.0.7 * * * Version Details Vulnerabilities
19 Application Gnupg Gnupg 2.0.8 * * * Version Details Vulnerabilities
20 Application Gnupg Gnupg 2.0.10 * * * Version Details Vulnerabilities
21 Application Gnupg Gnupg 2.0.11 * * * Version Details Vulnerabilities
22 Application Gnupg Gnupg 2.0.12 * * * Version Details Vulnerabilities
23 Application Gnupg Gnupg 2.0.13 * * * Version Details Vulnerabilities
24 Application Gnupg Gnupg 2.0.14 * * * Version Details Vulnerabilities
25 Application Gnupg Gnupg 2.0.15 * * * Version Details Vulnerabilities
26 Application Gnupg Gnupg 2.0.16 * * * Version Details Vulnerabilities
27 Application Gnupg Gnupg 2.0.17 * * * Version Details Vulnerabilities
28 Application Gnupg Gnupg 2.0.18 * * * Version Details Vulnerabilities
29 Application Gnupg Gnupg 2.0.19 * * * Version Details Vulnerabilities
30 Application Gnupg Gnupg 2.1.0 Beta1 * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Gnupg Gnupg 30

- References For CVE-2013-4351
SUSE openSUSE-SU-2013:1526
SUSE openSUSE-SU-2013:1532
MLIST [oss-security] 20130913 Re: GnuPG treats no-usage-permitted keys as all-usages-permitted
REDHAT RHSA-2013:1459

- Metasploit Modules Related To CVE-2013-4351

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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