CVE-2013-4351

gnupg: treats no-usage-permitted keys as all-usages-permitted

Published Oct 10, 2013 CVSS 2.0 · 5.8 Medium EPSS 2.5% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-2773-1 gnupg security update
Debian DSA Debian DSA DSA-2774-1 gnupg security update
EUVD EUVD EUVD-2013-4235 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.
Ubuntu USN Ubuntu USN USN-1987-1 GnuPG vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Aug 6, 2024, 4:38 PM
Reserved
Jun 12, 2013, 12:00 AM
Status
Modified
Published
Oct 10, 2013, 12:55 AM
Modified
Jun 16, 2026, 11:57 PM
Severity
Low
Public date
Mar 12, 2013, 12:00 AM