Test ID:	1.3.6.1.4.1.25623.1.1.10.2021.0563
Category:	Mageia Linux Local Security Checks
Title:	Mageia: Security Advisory (MGASA-2021-0563)
Summary:	The remote host is missing an update for the 'botan2' package(s) announced via the MGASA-2021-0563 advisory.
Description:	Summary: The remote host is missing an update for the 'botan2' package(s) announced via the MGASA-2021-0563 advisory. Vulnerability Insight: Updated botan2 packages fix security vulnerability: The ElGamal implementation in Botan through 2.18.1, as used in Thunderbird and other products, 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-2021-40529). Affected Software/OS: 'botan2' 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-2021-40529 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UPHGYWNJQKWLTUWBNSFB4F66MQDIL3IB/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/72NB4OLD3VHJC3YF3PEP2HKF6BYURPAO/ https://security.gentoo.org/glsa/202208-14 https://eprint.iacr.org/2021/923 https://github.com/randombit/botan/pull/2790 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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