Amazon Linux 2 Security Advisory: ALAS-2022-1769
Advisory Release Date: 2022-04-04 23:22 Pacific
Advisory Updated Date: 2022-04-06 23:12 Pacific
Severity:
Medium
Issue Overview:
A side-channel attack flaw was found in the way libgcrypt implemented Elgamal encryption. This flaw allows an attacker to decrypt parts of ciphertext encrypted using Elgamal, for example, when using OpenPGP. The highest threat from this vulnerability is to confidentiality. (CVE-2021-33560)
Affected Packages:
libgcrypt
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update libgcrypt to update your system.
New Packages:
aarch64:
libgcrypt-1.5.3-14.amzn2.0.3.aarch64
libgcrypt-devel-1.5.3-14.amzn2.0.3.aarch64
libgcrypt-debuginfo-1.5.3-14.amzn2.0.3.aarch64
i686:
libgcrypt-1.5.3-14.amzn2.0.3.i686
libgcrypt-devel-1.5.3-14.amzn2.0.3.i686
libgcrypt-debuginfo-1.5.3-14.amzn2.0.3.i686
src:
libgcrypt-1.5.3-14.amzn2.0.3.src
x86_64:
libgcrypt-1.5.3-14.amzn2.0.3.x86_64
libgcrypt-devel-1.5.3-14.amzn2.0.3.x86_64
libgcrypt-debuginfo-1.5.3-14.amzn2.0.3.x86_64