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Amazon Linux 2023: CVE-2023-5517: Important priority package update for bind

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Amazon Linux 2023: CVE-2023-5517: Important priority package update for bind

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
02/13/2024
Created
02/14/2025
Added
02/14/2025
Modified
02/14/2025

Description

A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when: - `nxdomain-redirect <domain>;` is configured, and - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response. This issue affects BIND 9 versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1. A flaw was found in the bind package which may result in a Denial of Service in `named` process. This is a result of a reachable assertion, leading `named` to prematurely terminate when both conditions are met: nxdomain-redirect for the queried domain is configured and the resolver receives a PTR query, used for a reverse DNS lookup, for a RFC 1918 address that would normally result in an authoritative `NXDOMAIN` response. A single query matching both conditions can lead to a Denial of Service in the named application.

Solution(s)

  • amazon-linux-2023-upgrade-bind
  • amazon-linux-2023-upgrade-bind-chroot
  • amazon-linux-2023-upgrade-bind-debuginfo
  • amazon-linux-2023-upgrade-bind-debugsource
  • amazon-linux-2023-upgrade-bind-devel
  • amazon-linux-2023-upgrade-bind-dlz-filesystem
  • amazon-linux-2023-upgrade-bind-dlz-filesystem-debuginfo
  • amazon-linux-2023-upgrade-bind-dlz-ldap
  • amazon-linux-2023-upgrade-bind-dlz-ldap-debuginfo
  • amazon-linux-2023-upgrade-bind-dlz-mysql
  • amazon-linux-2023-upgrade-bind-dlz-mysql-debuginfo
  • amazon-linux-2023-upgrade-bind-dlz-sqlite3
  • amazon-linux-2023-upgrade-bind-dlz-sqlite3-debuginfo
  • amazon-linux-2023-upgrade-bind-dnssec-doc
  • amazon-linux-2023-upgrade-bind-dnssec-utils
  • amazon-linux-2023-upgrade-bind-dnssec-utils-debuginfo
  • amazon-linux-2023-upgrade-bind-doc
  • amazon-linux-2023-upgrade-bind-libs
  • amazon-linux-2023-upgrade-bind-libs-debuginfo
  • amazon-linux-2023-upgrade-bind-license
  • amazon-linux-2023-upgrade-bind-pkcs11
  • amazon-linux-2023-upgrade-bind-pkcs11-debuginfo
  • amazon-linux-2023-upgrade-bind-pkcs11-devel
  • amazon-linux-2023-upgrade-bind-pkcs11-libs
  • amazon-linux-2023-upgrade-bind-pkcs11-libs-debuginfo
  • amazon-linux-2023-upgrade-bind-pkcs11-utils
  • amazon-linux-2023-upgrade-bind-pkcs11-utils-debuginfo
  • amazon-linux-2023-upgrade-bind-utils
  • amazon-linux-2023-upgrade-bind-utils-debuginfo
  • amazon-linux-2023-upgrade-python3-bind

References

  • https://attackerkb.com/topics/cve-2023-5517
  • CVE - 2023-5517
  • https://alas.aws.amazon.com/AL2023/ALAS-2024-550.html
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