Test ID:	1.3.6.1.4.1.25623.1.1.10.2021.0446
Category:	Mageia Linux Local Security Checks
Title:	Mageia: Security Advisory (MGASA-2021-0446)
Summary:	The remote host is missing an update for the 'libgcrypt' package(s) announced via the MGASA-2021-0446 advisory.
Description:	Summary: The remote host is missing an update for the 'libgcrypt' package(s) announced via the MGASA-2021-0446 advisory. Vulnerability Insight: The updated packages fix a security vulnerability: 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-2021-40528). Affected Software/OS: 'libgcrypt' package(s) on Mageia 8. Solution: Please install the updated package(s). CVSS Score: 2.6 CVSS Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-40528 https://security.gentoo.org/glsa/202210-13 https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=3462280f2e23e16adf3ed5176e0f2413d8861320 https://eprint.iacr.org/2021/923 https://ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1 https://ibm.github.io/system-security-research-updates/2021/09/06/insecurity-elgamal-pt2
Copyright	Copyright (C) 2022 Greenbone AG

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