Amazon Linux 2 Security Advisory: ALAS-2022-1845
Advisory Release Date: 2022-09-09 10:48 Pacific
Advisory Updated Date: 2022-10-10 21:55 Pacific
Severity:
Medium
Issue Overview:
A flaw was found in krb5. MIT Kerberos 5 allows unbounded recursion via an ASN.1-encoded Kerberos message because the lib/krb5/asn.1/asn1_encode.c support for BER indefinite lengths lacks a recursion limit. (CVE-2020-28196)
Affected Packages:
krb5
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 krb5 to update your system.
New Packages:
aarch64:
krb5-devel-1.15.1-37.amzn2.2.3.aarch64
krb5-libs-1.15.1-37.amzn2.2.3.aarch64
krb5-server-1.15.1-37.amzn2.2.3.aarch64
krb5-server-ldap-1.15.1-37.amzn2.2.3.aarch64
krb5-workstation-1.15.1-37.amzn2.2.3.aarch64
krb5-pkinit-1.15.1-37.amzn2.2.3.aarch64
libkadm5-1.15.1-37.amzn2.2.3.aarch64
krb5-debuginfo-1.15.1-37.amzn2.2.3.aarch64
i686:
krb5-devel-1.15.1-37.amzn2.2.3.i686
krb5-libs-1.15.1-37.amzn2.2.3.i686
krb5-server-1.15.1-37.amzn2.2.3.i686
krb5-server-ldap-1.15.1-37.amzn2.2.3.i686
krb5-workstation-1.15.1-37.amzn2.2.3.i686
krb5-pkinit-1.15.1-37.amzn2.2.3.i686
libkadm5-1.15.1-37.amzn2.2.3.i686
krb5-debuginfo-1.15.1-37.amzn2.2.3.i686
src:
krb5-1.15.1-37.amzn2.2.3.src
x86_64:
krb5-devel-1.15.1-37.amzn2.2.3.x86_64
krb5-libs-1.15.1-37.amzn2.2.3.x86_64
krb5-server-1.15.1-37.amzn2.2.3.x86_64
krb5-server-ldap-1.15.1-37.amzn2.2.3.x86_64
krb5-workstation-1.15.1-37.amzn2.2.3.x86_64
krb5-pkinit-1.15.1-37.amzn2.2.3.x86_64
libkadm5-1.15.1-37.amzn2.2.3.x86_64
krb5-debuginfo-1.15.1-37.amzn2.2.3.x86_64