The vulnerability of the Libgcrypt cryptographic library lies in the insufficient protection of service data due to timing differences, allowing attackers to execute the Bleichenbacher attack or the Marvin attack.

The vulnerability of the Libgcrypt cryptographic library is related to insufficient protection of service data due to timing differences. Exploiting this vulnerability allows a remote attacker to execute a Bleichenbacher attack or a Marvin attack...

PT-2024-2174 · Libgcrypt +4 · Libgcrypt +4

Name of the Vulnerable Software and Affected Versions: libgcrypt affected versions not specified Description: A timing-based side-channel flaw was found in libgcrypt's RSA implementation, which may allow a remote attacker to initiate a Bleichenbacher-style attack. This can lead to the decryption ...

SUSE CVE-2017-9526

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...

The vulnerability of the Libgcrypt cryptographic library, which stems from the use of a weak cryptographic algorithm. This allows attackers to gain access to confidential information.

The vulnerability of the Libgcrypt cryptographic library lies in the use of a weak cryptographic algorithm. Exploiting this vulnerability could allow an attacker, operating remotely, to gain access to confidential information...

AlmaLinux 8 : libgcrypt (ALSA-2021:4409)

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2021:4409 advisory. - 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 mpipowm,...

ALPINE-CVE-2021-40528

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...

Vulnerability fixed in libgcrypt

The developers of GnuPG have fixed a vulnerability in libgcrypt. The vulnerability is caused by an insecure implementation of ElGamal cryptography. A malicious person could potentially exploit the vulnerability to perform a side-channel attack against data encrypted using ElGamal. Few substantive...

PT-2021-6020 · Libgcrypt +9 · Libgcrypt +9

Name of the Vulnerable Software and Affected Versions: Libgcrypt versions prior to 1.9.4 Description: The issue is related to the use of a weak cryptographic algorithm in the Libgcrypt library. It affects the ElGamal implementation, allowing plaintext recovery due to a dangerous combination of th...

PT-2021-7065

Name of the Vulnerable Software and Affected Versions Libgcrypt versions 1.8.7 and earlier Libgcrypt versions 1.9.x before 1.9.3 Description The issue is related to the mishandling of ElGamal encryption due to the lack of exponent blinding, making it vulnerable to a side-channel attack against mp...

Vulnerability fixed in Libgcrypt

A vulnerability has been fixed in Libgcrypt. The vulnerability allows a remote malicious person to execute arbitrary code execute under the user's privileges. The developers of GnuPG have released updates to fix the vulnerability. More information can be found at the page below:...

CVE-2021-3345

gcrymdblockwrite 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...

Ubuntu 18.04 LTS : Libgcrypt vulnerability (USN-4236-1)

The remote Ubuntu 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4236-1 advisory. It was discovered that Libgcrypt was susceptible to a ECDSA timing attack. An attacker could possibly use this attack to recover sensitive information. Tenable ha...

Ubuntu 16.04 LTS : Libgcrypt vulnerability (USN-4236-2)

The remote Ubuntu 16.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-4236-2 advisory. USN-4236-1 fixed a vulnerability in Libgcrypt. This update provides the corresponding fix for Ubuntu 16.04 LTS. Tenable has extracted the preceding description...

CVE-2014-3591

Libgcrypt before 1.6.3 and GnuPG before 1.4.19 does not implement ciphertext blinding for Elgamal decryption, which allows physically proximate attackers to obtain the server's private key by determining factors using crafted ciphertext and the fluctuations in the electromagnetic field during...

CVE-2019-12904

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...

AZL-41702 CVE-2017-7526 affecting package grub2 for versions less than 2.06-25

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...

Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : Libgcrypt vulnerability (USN-3689-1)

The remote Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-3689-1 advisory. Keegan Ryan discovered that Libgcrypt was susceptible to a side-channel attack. A local attacker could possibly use this attack to recover...

Security Bulletin: IBM Security Access Manager appliances are affected by a vulnerability in the libgcrypt library (CVE-2016-6313)

Summary A vulnerability has been identified in the libgcrypt library. IBM Security Access Manager appliances use the libgcrypt library and are affected by this vulnerability. Vulnerability Details CVEID: CVE-2016-6313 DESCRIPTION: GnuPG could provide weaker than expected security, caused by an...

Libgcrypt Information Disclosure Vulnerability (CNVD-2017-21505)

Libgcrypt is a general-purpose cryptographic library developed by the GNU Project based on the GnuPG code. The library implements a variety of cryptographic algorithms, including symmetric ciphers, hashing algorithms, public key algorithms, and more. An information disclosure vulnerability exists...

CVE-2017-7526

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...