ALAS-2024-2625

Amazon Linux 2 Security Advisory: ALAS-2024-2625
Advisory Release Date: 2024-08-14 19:06 Pacific
Advisory Updated Date: 2024-08-20 16:40 Pacific
Severity: Important
Issue Overview:

The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers.
This issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1. (CVE-2023-4408)


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.amzn2.13.8.aarch64
    bind-pkcs11-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-pkcs11-utils-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-pkcs11-libs-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-pkcs11-devel-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-sdb-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-libs-lite-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-libs-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-utils-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-devel-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-lite-devel-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-chroot-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-sdb-chroot-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-export-libs-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-export-devel-9.11.4-26.P2.amzn2.13.8.aarch64
    bind-debuginfo-9.11.4-26.P2.amzn2.13.8.aarch64

i686:
    bind-9.11.4-26.P2.amzn2.13.8.i686
    bind-pkcs11-9.11.4-26.P2.amzn2.13.8.i686
    bind-pkcs11-utils-9.11.4-26.P2.amzn2.13.8.i686
    bind-pkcs11-libs-9.11.4-26.P2.amzn2.13.8.i686
    bind-pkcs11-devel-9.11.4-26.P2.amzn2.13.8.i686
    bind-sdb-9.11.4-26.P2.amzn2.13.8.i686
    bind-libs-lite-9.11.4-26.P2.amzn2.13.8.i686
    bind-libs-9.11.4-26.P2.amzn2.13.8.i686
    bind-utils-9.11.4-26.P2.amzn2.13.8.i686
    bind-devel-9.11.4-26.P2.amzn2.13.8.i686
    bind-lite-devel-9.11.4-26.P2.amzn2.13.8.i686
    bind-chroot-9.11.4-26.P2.amzn2.13.8.i686
    bind-sdb-chroot-9.11.4-26.P2.amzn2.13.8.i686
    bind-export-libs-9.11.4-26.P2.amzn2.13.8.i686
    bind-export-devel-9.11.4-26.P2.amzn2.13.8.i686
    bind-debuginfo-9.11.4-26.P2.amzn2.13.8.i686

noarch:
    bind-license-9.11.4-26.P2.amzn2.13.8.noarch

src:
    bind-9.11.4-26.P2.amzn2.13.8.src

x86_64:
    bind-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-pkcs11-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-pkcs11-utils-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-pkcs11-libs-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-pkcs11-devel-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-sdb-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-libs-lite-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-libs-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-utils-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-devel-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-lite-devel-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-chroot-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-sdb-chroot-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-export-libs-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-export-devel-9.11.4-26.P2.amzn2.13.8.x86_64
    bind-debuginfo-9.11.4-26.P2.amzn2.13.8.x86_64

Additional References

Red Hat: CVE-2023-4408

Mitre: CVE-2023-4408