Design/Logic Flaw

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...

Debian Security Advisory DSA 2774-1 (gnupg2 - several vulnerabilities)

Two vulnerabilities were discovered in GnuPG 2, the GNU privacy guard, a free PGP replacement. The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2013-4351When a key or subkey had its key flags subpacket set to all bits off, GnuPG currently would treat the key...

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...

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...

MGASA-2013-0299 Updated gnupg2 packages fix multiple vulnerabilities

Updated gnupg2 package fixes security vulnerabilities: RFC 4880 permits OpenPGP keyholders to mark their primary keys and subkeys with a "key flags" packet that indicates the capabilities of the key. These are represented as a set of binary flags, including things like "This key may be used to...

Updated gnupg2 packages fix multiple vulnerabilities

Updated gnupg2 package fixes security vulnerabilities: RFC 4880 permits OpenPGP keyholders to mark their primary keys and subkeys with a "key flags" packet that indicates the capabilities of the key. These are represented as a set of binary flags, including things like "This key may be used to...

Debian: Security Advisory (DSA-2773-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2013 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

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...

CVE-2026-42784

openpgp: Don't imply missing key flags from key type...