Vulnerabilities (CVE)

Filtered by vendor Gnupg Subscribe
Total 47 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2019-12904 2 Gnupg, Opensuse 2 Libgcrypt, Leap 2024-05-17 4.3 MEDIUM 5.9 MEDIUM
In Libgcrypt 1.8.4, the C implementation of AES is vulnerable to a flush-and-reload side-channel attack because physical addresses are available to other processes. (The C implementation is used on platforms where an assembly-language implementation is unavailable.) NOTE: the vendor's position is that the issue report cannot be validated because there is no description of an attack
CVE-2010-2547 3 Debian, Fedoraproject, Gnupg 3 Debian Linux, Fedora, Gnupg 2024-02-02 5.1 MEDIUM 8.1 HIGH
Use-after-free vulnerability in kbx/keybox-blob.c in GPGSM in GnuPG 2.x through 2.0.16 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a certificate with a large number of Subject Alternate Names, which is not properly handled in a realloc operation when importing the certificate or verifying its signature.
CVE-2022-47629 2 Debian, Gnupg 2 Debian Linux, Libksba 2023-11-07 N/A 9.8 CRITICAL
Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.
CVE-2022-34903 4 Debian, Fedoraproject, Gnupg and 1 more 5 Debian Linux, Fedora, Gnupg and 2 more 2023-11-07 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-2021-40528 1 Gnupg 1 Libgcrypt 2023-11-07 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-2021-3345 2 Gnupg, Oracle 2 Libgcrypt, Communications Billing And Revenue Management 2023-11-07 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.
CVE-2021-33560 4 Debian, Fedoraproject, Gnupg and 1 more 8 Debian Linux, Fedora, Libgcrypt and 5 more 2023-11-07 5.0 MEDIUM 7.5 HIGH
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.
CVE-2019-13050 5 F5, Fedoraproject, Gnupg and 2 more 5 Traffix Signaling Delivery Controller, Fedora, Gnupg and 2 more 2023-11-07 5.0 MEDIUM 7.5 HIGH
Interaction between the sks-keyserver code through 1.2.0 of the SKS keyserver network, and GnuPG through 2.2.16, makes it risky to have a GnuPG keyserver configuration line referring to a host on the SKS keyserver network. Retrieving data from this network may cause a persistent denial of service, because of a Certificate Spamming Attack.
CVE-2018-0495 5 Canonical, Debian, Gnupg and 2 more 8 Ubuntu Linux, Debian Linux, Libgcrypt and 5 more 2023-11-07 1.9 LOW 4.7 MEDIUM
Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
CVE-2017-9526 1 Gnupg 1 Libgcrypt 2023-11-07 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-2017-7526 3 Canonical, Debian, Gnupg 3 Ubuntu Linux, Debian Linux, Libgcrypt 2023-11-07 4.3 MEDIUM 6.8 MEDIUM
libgcrypt before version 1.7.8 is vulnerable to a cache side-channel attack resulting into a complete break of RSA-1024 while using the left-to-right method for computing the sliding-window expansion. The same attack is believed to work on RSA-2048 with moderately more computation. This side-channel requires that attacker can run arbitrary software on the hardware where the private RSA key is used.
CVE-2017-0379 2 Debian, Gnupg 2 Debian Linux, Libgcrypt 2023-11-07 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-2016-6313 3 Canonical, Debian, Gnupg 4 Ubuntu Linux, Debian Linux, Gnupg and 1 more 2023-11-07 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-2016-4579 3 Canonical, Gnupg, Opensuse 3 Ubuntu Linux, Libksba, Leap 2023-11-07 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-2016-4574 3 Canonical, Gnupg, Opensuse 4 Ubuntu Linux, Libksba, Leap and 1 more 2023-11-07 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-2016-4356 2 Canonical, Gnupg 2 Ubuntu Linux, Libksba 2023-11-07 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-2016-4355 2 Canonical, Gnupg 2 Ubuntu Linux, Libksba 2023-11-07 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-2016-4354 2 Canonical, Gnupg 2 Ubuntu Linux, Libksba 2023-11-07 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-2016-4353 2 Canonical, Gnupg 2 Ubuntu Linux, Libksba 2023-11-07 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-2015-7511 3 Canonical, Debian, Gnupg 3 Ubuntu Linux, Debian Linux, Libgcrypt 2023-11-07 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.