CVSS: 2.7EPSS: 0%CPEs: 1EXPL: 0CVE-2025-30258
https://notcve.org/view.php?id=CVE-2025-30258
19 Mar 2025 — In GnuPG before 2.5.5, if a user chooses to import a certificate with certain crafted subkey data that lacks a valid backsig or that has incorrect usage flags, the user loses the ability to verify signatures made from certain other signing keys, aka a "verification DoS." • https://dev.gnupg.org/T7527 • CWE-754: Improper Check for Unusual or Exceptional Conditions •
CVSS: 3.3EPSS: 0%CPEs: 1EXPL: 0CVE-2022-3219
https://notcve.org/view.php?id=CVE-2022-3219
23 Feb 2023 — GnuPG can be made to spin on a relatively small input by (for example) crafting a public key with thousands of signatures attached, compressed down to just a few KB. • https://access.redhat.com/security/cve/CVE-2022-3219 • CWE-787: Out-of-bounds Write •
CVSS: 10.0EPSS: 1%CPEs: 3EXPL: 0CVE-2022-47629 – libksba: integer overflow to code execution
https://notcve.org/view.php?id=CVE-2022-47629
20 Dec 2022 — Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser. Libksba anterior a 1.6.3 es propenso a sufrir una vulnerabilidad de desbordamiento de enteros en el analizador de firmas CRL. A vulnerability was found in the Libksba library, due to an integer overflow within the CRL's signature parser. This issue can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment. The... • https://dev.gnupg.org/T6284 • CWE-190: Integer Overflow or Wraparound •
CVSS: 10.0EPSS: 0%CPEs: 5EXPL: 2CVE-2022-3515 – GnuPG libksba CRL File Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2022-3515
17 Oct 2022 — A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GnuPG libksba. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the i... • https://access.redhat.com/security/cve/CVE-2022-3515 • CWE-190: Integer Overflow or Wraparound •
CVSS: 6.5EPSS: 1%CPEs: 7EXPL: 2CVE-2022-34903 – gpg: Signature spoofing via status line injection
https://notcve.org/view.php?id=CVE-2022-34903
01 Jul 2022 — GnuPG through 2.3.6, in unusual situations where an attacker possesses any secret-key information from a victim's keyring and other constraints (e.g., use of GPGME) are met, allows signature forgery via injection into the status line. GnuPG versiones hasta 2.3.6, en situaciones inusuales en las que un atacante posee cualquier información de clave secreta del llavero de la víctima y son cumplidos en otras restricciones (por ejemplo, el uso de GPGME), permite una falsificación de firmas por medio de la inyecc... • http://www.openwall.com/lists/oss-security/2022/07/02/1 • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') CWE-347: Improper Verification of Cryptographic Signature •
CVSS: 5.9EPSS: 0%CPEs: 1EXPL: 1CVE-2021-40528 – libgcrypt: ElGamal implementation allows plaintext recovery
https://notcve.org/view.php?id=CVE-2021-40528
06 Sep 2021 — The ElGamal implementation in Libgcrypt before 1.9.4 allows plaintext recovery because, during interaction between two cryptographic libraries, a certain dangerous combination of the prime defined by the receiver's public key, the generator defined by the receiver's public key, and the sender's ephemeral exponents can lead to a cross-configuration attack against OpenPGP. Una implementación de ElGamal en Libgcrypt versiones anteriores a 1.9.4, permite una recuperación de texto plano porque, durante la intera... • https://eprint.iacr.org/2021/923 • CWE-327: Use of a Broken or Risky Cryptographic Algorithm •
CVSS: 7.5EPSS: 0%CPEs: 13EXPL: 1CVE-2021-33560 – libgcrypt: mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm
https://notcve.org/view.php?id=CVE-2021-33560
08 Jun 2021 — Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP. Libgcrypt versiones anteriores a 1.8.8 y versiones 1.9.x anteriores a 1.9.3, maneja inapropiadamente el cifrado de ElGamal porque carece de cegado de exponentes para hacer frente a un ataque de canal lateral contra la función mpi_powm, y el tamaño... • https://github.com/IBM/PGP-client-checker-CVE-2021-33560 • CWE-203: Observable Discrepancy CWE-327: Use of a Broken or Risky Cryptographic Algorithm •
CVSS: 7.8EPSS: 5%CPEs: 2EXPL: 2CVE-2021-3345
https://notcve.org/view.php?id=CVE-2021-3345
29 Jan 2021 — _gcry_md_block_write in cipher/hash-common.c in Libgcrypt version 1.9.0 has a heap-based buffer overflow when the digest final function sets a large count value. It is recommended to upgrade to 1.9.1 or later. La función _gcry_md_block_write en el archivo cipher/hash-common.c en la versión 1.9.0 de Libgcrypt tiene un desbordamiento de búfer basado en la pila cuando la función final del resumen establece un valor de recuento grande. Se recomienda actualizar a la versión 1.9.1 o posterior. • https://github.com/MLGRadish/CVE-2021-3345 • CWE-787: Out-of-bounds Write •
CVSS: 7.8EPSS: 0%CPEs: 3EXPL: 1CVE-2020-25125
https://notcve.org/view.php?id=CVE-2020-25125
03 Sep 2020 — GnuPG 2.2.21 and 2.2.22 (and Gpg4win 3.1.12) has an array overflow, leading to a crash or possibly unspecified other impact, when a victim imports an attacker's OpenPGP key, and this key has AEAD preferences. The overflow is caused by a g10/key-check.c error. NOTE: GnuPG 2.3.x is unaffected. GnuPG 2.2.23 is a fixed version. GnuPG versiones 2.2.21 y 2.2.22 (y Gpg4win versión 3.1.12), presenta un desbordamiento de la matriz, conllevando a un bloqueo o posiblemente otro impacto no especificado, cuando una víct... • http://www.openwall.com/lists/oss-security/2020/09/03/4 • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') •
CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 1CVE-2019-14855 – Ubuntu Security Notice USN-4516-1
https://notcve.org/view.php?id=CVE-2019-14855
20 Mar 2020 — A flaw was found in the way certificate signatures could be forged using collisions found in the SHA-1 algorithm. An attacker could use this weakness to create forged certificate signatures. This issue affects GnuPG versions before 2.2.18. Se detectó un fallo en la manera en que podrían ser falsificadas las firmas de certificados usando colisiones encontradas en el algoritmo SHA-1. Un atacante podría usar esta debilidad para crear firmas de certificados falsificadas. • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14855 • CWE-326: Inadequate Encryption Strength •