Amazon Linux 2 Security Advisory: ALAS-2021-1635
Advisory Release Date: 2021-05-20 15:46 Pacific
Advisory Updated Date: 2021-05-24 17:51 Pacific
Severity:
Important
Issue Overview:
A flaw was found in bind. The way DNAME records are processed may trigger the same RRset to the ANSWER section to be added more than once which causes an assertion check to fail. The highest threat from this flaw is to system availability. (CVE-2021-25215)
Affected Packages:
bind
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 bind to update your system.
New Packages:
aarch64:
bind-9.11.4-26.P2.amzn2.5.aarch64
bind-pkcs11-9.11.4-26.P2.amzn2.5.aarch64
bind-pkcs11-utils-9.11.4-26.P2.amzn2.5.aarch64
bind-pkcs11-libs-9.11.4-26.P2.amzn2.5.aarch64
bind-pkcs11-devel-9.11.4-26.P2.amzn2.5.aarch64
bind-sdb-9.11.4-26.P2.amzn2.5.aarch64
bind-libs-lite-9.11.4-26.P2.amzn2.5.aarch64
bind-libs-9.11.4-26.P2.amzn2.5.aarch64
bind-utils-9.11.4-26.P2.amzn2.5.aarch64
bind-devel-9.11.4-26.P2.amzn2.5.aarch64
bind-lite-devel-9.11.4-26.P2.amzn2.5.aarch64
bind-chroot-9.11.4-26.P2.amzn2.5.aarch64
bind-sdb-chroot-9.11.4-26.P2.amzn2.5.aarch64
bind-export-libs-9.11.4-26.P2.amzn2.5.aarch64
bind-export-devel-9.11.4-26.P2.amzn2.5.aarch64
bind-debuginfo-9.11.4-26.P2.amzn2.5.aarch64
i686:
bind-9.11.4-26.P2.amzn2.5.i686
bind-pkcs11-9.11.4-26.P2.amzn2.5.i686
bind-pkcs11-utils-9.11.4-26.P2.amzn2.5.i686
bind-pkcs11-libs-9.11.4-26.P2.amzn2.5.i686
bind-pkcs11-devel-9.11.4-26.P2.amzn2.5.i686
bind-sdb-9.11.4-26.P2.amzn2.5.i686
bind-libs-lite-9.11.4-26.P2.amzn2.5.i686
bind-libs-9.11.4-26.P2.amzn2.5.i686
bind-utils-9.11.4-26.P2.amzn2.5.i686
bind-devel-9.11.4-26.P2.amzn2.5.i686
bind-lite-devel-9.11.4-26.P2.amzn2.5.i686
bind-chroot-9.11.4-26.P2.amzn2.5.i686
bind-sdb-chroot-9.11.4-26.P2.amzn2.5.i686
bind-export-libs-9.11.4-26.P2.amzn2.5.i686
bind-export-devel-9.11.4-26.P2.amzn2.5.i686
bind-debuginfo-9.11.4-26.P2.amzn2.5.i686
noarch:
bind-license-9.11.4-26.P2.amzn2.5.noarch
src:
bind-9.11.4-26.P2.amzn2.5.src
x86_64:
bind-9.11.4-26.P2.amzn2.5.x86_64
bind-pkcs11-9.11.4-26.P2.amzn2.5.x86_64
bind-pkcs11-utils-9.11.4-26.P2.amzn2.5.x86_64
bind-pkcs11-libs-9.11.4-26.P2.amzn2.5.x86_64
bind-pkcs11-devel-9.11.4-26.P2.amzn2.5.x86_64
bind-sdb-9.11.4-26.P2.amzn2.5.x86_64
bind-libs-lite-9.11.4-26.P2.amzn2.5.x86_64
bind-libs-9.11.4-26.P2.amzn2.5.x86_64
bind-utils-9.11.4-26.P2.amzn2.5.x86_64
bind-devel-9.11.4-26.P2.amzn2.5.x86_64
bind-lite-devel-9.11.4-26.P2.amzn2.5.x86_64
bind-chroot-9.11.4-26.P2.amzn2.5.x86_64
bind-sdb-chroot-9.11.4-26.P2.amzn2.5.x86_64
bind-export-libs-9.11.4-26.P2.amzn2.5.x86_64
bind-export-devel-9.11.4-26.P2.amzn2.5.x86_64
bind-debuginfo-9.11.4-26.P2.amzn2.5.x86_64