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CVE-2013-4351

Date: October 9, 2013

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.

Language: C

Severity Score

Related Resources (14)

http://rhn.redhat.com/errata/RHSA-2013-1459.html
https://security-tracker.debian.org/tracker/CVE-2013-4351
https://nvd.nist.gov/vuln/detail/CVE-2013-4351
http://www.debian.org/security/2013/dsa-2774
http://lists.opensuse.org/opensuse-updates/2013-10/msg00003.html
https://access.redhat.com/security/cve/CVE-2013-4351
http://www.debian.org/security/2013/dsa-2773
https://bugzilla.redhat.com/show_bug.cgi?id=1010137
http://ubuntu.com/usn/usn-1987-1
http://www.openwall.com/lists/oss-security/2013/09/13/4
http://thread.gmane.org/gmane.comp.encryption.gpg.devel/17712/focus=18138
http://lists.opensuse.org/opensuse-updates/2013-10/msg00006.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2013-4351
https://www.mend.io/vulnerability-database/CVE-2013-4351

Severity Score

Weakness Type (CWE)

Cryptographic Issues

CWE-310

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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