Vulnerabilities (CVE)

Filtered by vendor Gnupg Subscribe
Total 55 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2025-30258 1 Gnupg 1 Gnupg 2025-10-16 N/A 2.7 LOW
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."
CVE-2021-40528 1 Gnupg 1 Libgcrypt 2025-06-09 2.6 LOW 5.9 MEDIUM
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.
CVE-2017-9526 1 Gnupg 1 Libgcrypt 2025-04-20 4.3 MEDIUM 5.9 MEDIUM
In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library.
CVE-2017-0379 2 Debian, Gnupg 2 Debian Linux, Libgcrypt 2025-04-20 5.0 MEDIUM 7.5 HIGH
Libgcrypt before 1.8.1 does not properly consider Curve25519 side-channel attacks, which makes it easier for attackers to discover a secret key, related to cipher/ecc.c and mpi/ec.c.
CVE-2022-47629 2 Debian, Gnupg 2 Debian Linux, Libksba 2025-04-16 N/A 9.8 CRITICAL
Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.
CVE-2016-4355 2 Canonical, Gnupg 2 Ubuntu Linux, Libksba 2025-04-12 5.0 MEDIUM 7.5 HIGH
Multiple integer overflows in ber-decoder.c in Libksba before 1.3.3 allow remote attackers to cause a denial of service (crash) via crafted BER data, which leads to a buffer overflow.
CVE-2015-7511 3 Canonical, Debian, Gnupg 3 Ubuntu Linux, Debian Linux, Libgcrypt 2025-04-12 1.9 LOW 2.0 LOW
Libgcrypt before 1.6.5 does not properly perform elliptic-point curve multiplication during decryption, which makes it easier for physically proximate attackers to extract ECDH keys by measuring electromagnetic emanations.
CVE-2016-4356 2 Canonical, Gnupg 2 Ubuntu Linux, Libksba 2025-04-12 5.0 MEDIUM 7.5 HIGH
The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.
CVE-2016-4354 2 Canonical, Gnupg 2 Ubuntu Linux, Libksba 2025-04-12 5.0 MEDIUM 7.5 HIGH
ber-decoder.c in Libksba before 1.3.3 uses an incorrect integer data type, which allows remote attackers to cause a denial of service (crash) via crafted BER data, which leads to a buffer overflow.
CVE-2016-6313 3 Canonical, Debian, Gnupg 4 Ubuntu Linux, Debian Linux, Gnupg and 1 more 2025-04-12 5.0 MEDIUM 5.3 MEDIUM
The mixing functions in the random number generator in Libgcrypt before 1.5.6, 1.6.x before 1.6.6, and 1.7.x before 1.7.3 and GnuPG before 1.4.21 make it easier for attackers to obtain the values of 160 bits by leveraging knowledge of the previous 4640 bits.
CVE-2016-4353 2 Canonical, Gnupg 2 Ubuntu Linux, Libksba 2025-04-12 5.0 MEDIUM 7.5 HIGH
ber-decoder.c in Libksba before 1.3.3 does not properly handle decoder stack overflows, which allows remote attackers to cause a denial of service (abort) via crafted BER data.
CVE-2014-5270 2 Debian, Gnupg 2 Debian Linux, Libgcrypt 2025-04-12 2.1 LOW N/A
Libgcrypt before 1.5.4, as used in GnuPG and other products, does not properly perform ciphertext normalization and ciphertext randomization, which makes it easier for physically proximate attackers to conduct key-extraction attacks by leveraging the ability to collect voltage data from exposed metal, a different vector than CVE-2013-4576.
CVE-2014-9087 4 Canonical, Debian, Gnupg and 1 more 5 Ubuntu Linux, Debian Linux, Gnupg and 2 more 2025-04-12 7.5 HIGH N/A
Integer underflow in the ksba_oid_to_str function in Libksba before 1.3.2, as used in GnuPG, allows remote attackers to cause a denial of service (crash) via a crafted OID in a (1) S/MIME message or (2) ECC based OpenPGP data, which triggers a buffer overflow.
CVE-2016-4579 3 Canonical, Gnupg, Opensuse 3 Ubuntu Linux, Libksba, Leap 2025-04-12 5.0 MEDIUM 7.5 HIGH
Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read and crash) via unspecified vectors, related to the "returned length of the object from _ksba_ber_parse_tl."
CVE-2014-4617 3 Debian, Gnupg, Opensuse 3 Debian Linux, Gnupg, Opensuse 2025-04-12 5.0 MEDIUM N/A
The do_uncompress function in g10/compress.c in GnuPG 1.x before 1.4.17 and 2.x before 2.0.24 allows context-dependent attackers to cause a denial of service (infinite loop) via malformed compressed packets, as demonstrated by an a3 01 5b ff byte sequence.
CVE-2016-4574 3 Canonical, Gnupg, Opensuse 4 Ubuntu Linux, Libksba, Leap and 1 more 2025-04-12 5.0 MEDIUM 7.5 HIGH
Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.
CVE-2022-3515 2 Gnupg, Gpg4win 4 Gnupg, Libksba, Vs-desktop and 1 more 2025-04-08 N/A 9.8 CRITICAL
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.
CVE-2022-3219 1 Gnupg 1 Gnupg 2025-03-12 N/A 3.3 LOW
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.
CVE-2022-34903 4 Debian, Fedoraproject, Gnupg and 1 more 5 Debian Linux, Fedora, Gnupg and 2 more 2024-11-21 5.8 MEDIUM 6.5 MEDIUM
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.
CVE-2021-3345 2 Gnupg, Oracle 2 Libgcrypt, Communications Billing And Revenue Management 2024-11-21 7.2 HIGH 7.8 HIGH
_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.