Amazon Linux 2 Security Advisory: ALAS-2021-1721
Advisory Release Date: 2021-10-26 23:29 Pacific
Advisory Updated Date: 2021-11-04 18:05 Pacific
Severity:
Medium
Issue Overview:
It was found that openssl assumed ASN.1 strings to be NUL terminated. A malicious actor may be able to force an application into calling openssl function with a specially crafted, non-NUL terminated string to deliberately hit this bug, which may result in a crash of the application, causing a Denial of Service attack, or possibly, memory disclosure. The highest threat from this vulnerability is to data confidentiality and system availability. (CVE-2021-3712)
Affected Packages:
openssl
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 openssl to update your system.
New Packages:
aarch64:
openssl-1.0.2k-19.amzn2.0.8.aarch64
openssl-libs-1.0.2k-19.amzn2.0.8.aarch64
openssl-devel-1.0.2k-19.amzn2.0.8.aarch64
openssl-static-1.0.2k-19.amzn2.0.8.aarch64
openssl-perl-1.0.2k-19.amzn2.0.8.aarch64
openssl-debuginfo-1.0.2k-19.amzn2.0.8.aarch64
i686:
openssl-1.0.2k-19.amzn2.0.8.i686
openssl-libs-1.0.2k-19.amzn2.0.8.i686
openssl-devel-1.0.2k-19.amzn2.0.8.i686
openssl-static-1.0.2k-19.amzn2.0.8.i686
openssl-perl-1.0.2k-19.amzn2.0.8.i686
openssl-debuginfo-1.0.2k-19.amzn2.0.8.i686
src:
openssl-1.0.2k-19.amzn2.0.8.src
x86_64:
openssl-1.0.2k-19.amzn2.0.8.x86_64
openssl-libs-1.0.2k-19.amzn2.0.8.x86_64
openssl-devel-1.0.2k-19.amzn2.0.8.x86_64
openssl-static-1.0.2k-19.amzn2.0.8.x86_64
openssl-perl-1.0.2k-19.amzn2.0.8.x86_64
openssl-debuginfo-1.0.2k-19.amzn2.0.8.x86_64