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Red Hat Enterprise: RHSA-2023-0402-01 Moderate: Cache Poisoning Risk

An update for bind is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: bind security update Advisory ID: RHSA-2023:0402-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2023:0402 Issue date: 2023-01-24 CVE Names: CVE-2021-25220 CVE-2022-2795 ==================================================================== 1. Summary: An update for bind is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly. Security Fix(es): *bind: DNS forwarders - cache poisoning vulnerability (CVE-2021-25220) * bind: processing large delegations may severely degrade resolver performance (CVE-2022-2795) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing the update, the BIND daemon (named) will be restarted automatically. 5. Bugs fixed (https://bugzilla.redhat.com/): 2064512 - CVE-2021-25220 bind: DNS forwarders - cache poisoning vulnerability 2128584 - CVE-2022-2795 bind: processing large delegations may severely degrade resolver performance 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: bind-9.11.4-26.P2.el7_9.13.src.rpm noarch: bind-license-9.11.4-26.P2.el7_9.13.noarch.rpm x86_64: bind-debuginfo-9.11.4-26.P2.el7_9.13.i686.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.i686.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-utils-9.11.4-26.P2.el7_9.13.x86_64.rpm Red Hat Enterprise Linux Client Optional (v.7): x86_64: bind-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-chroot-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.i686.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-utils-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-sdb-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-sdb-chroot-9.11.4-26.P2.el7_9.13.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: bind-9.11.4-26.P2.el7_9.13.src.rpm noarch: bind-license-9.11.4-26.P2.el7_9.13.noarch.rpm x86_64: bind-debuginfo-9.11.4-26.P2.el7_9.13.i686.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.i686.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-utils-9.11.4-26.P2.el7_9.13.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v.7): x86_64: bind-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-chroot-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.i686.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-utils-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-sdb-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-sdb-chroot-9.11.4-26.P2.el7_9.13.x86_64.rpm Red Hat Enterprise Linux Server (v.7): Source: bind-9.11.4-26.P2.el7_9.13.src.rpm noarch: bind-license-9.11.4-26.P2.el7_9.13.noarch.rpm ppc64: bind-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-chroot-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.ppc.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.ppc.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-libs-9.11.4-26.P2.el7_9.13.ppc.rpm bind-libs-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.ppc.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-pkcs11-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.ppc.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-pkcs11-utils-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-utils-9.11.4-26.P2.el7_9.13.ppc64.rpm ppc64le: bind-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-chroot-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-libs-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-pkcs11-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-pkcs11-utils-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-utils-9.11.4-26.P2.el7_9.13.ppc64le.rpm s390x: bind-9.11.4-26.P2.el7_9.13.s390x.rpm bind-chroot-9.11.4-26.P2.el7_9.13.s390x.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.s390.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.s390x.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.s390.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.s390x.rpm bind-libs-9.11.4-26.P2.el7_9.13.s390.rpm bind-libs-9.11.4-26.P2.el7_9.13.s390x.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.s390.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.s390x.rpm bind-pkcs11-9.11.4-26.P2.el7_9.13.s390x.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.s390.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.s390x.rpm bind-pkcs11-utils-9.11.4-26.P2.el7_9.13.s390x.rpm bind-utils-9.11.4-26.P2.el7_9.13.s390x.rpm x86_64: bind-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-chroot-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.i686.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.i686.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-utils-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-utils-9.11.4-26.P2.el7_9.13.x86_64.rpm Red Hat Enterprise Linux Server Optional (v.7): ppc64: bind-debuginfo-9.11.4-26.P2.el7_9.13.ppc.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-devel-9.11.4-26.P2.el7_9.13.ppc.rpm bind-devel-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.ppc.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.ppc.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.ppc.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-sdb-9.11.4-26.P2.el7_9.13.ppc64.rpm bind-sdb-chroot-9.11.4-26.P2.el7_9.13.ppc64.rpm ppc64le: bind-debuginfo-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-devel-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-sdb-9.11.4-26.P2.el7_9.13.ppc64le.rpm bind-sdb-chroot-9.11.4-26.P2.el7_9.13.ppc64le.rpm s390x: bind-debuginfo-9.11.4-26.P2.el7_9.13.s390.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.s390x.rpm bind-devel-9.11.4-26.P2.el7_9.13.s390.rpm bind-devel-9.11.4-26.P2.el7_9.13.s390x.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.s390.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.s390x.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.s390.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.s390x.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.s390.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.s390x.rpm bind-sdb-9.11.4-26.P2.el7_9.13.s390x.rpm bind-sdb-chroot-9.11.4-26.P2.el7_9.13.s390x.rpm x86_64: bind-debuginfo-9.11.4-26.P2.el7_9.13.i686.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-sdb-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-sdb-chroot-9.11.4-26.P2.el7_9.13.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: bind-9.11.4-26.P2.el7_9.13.src.rpm noarch: bind-license-9.11.4-26.P2.el7_9.13.noarch.rpm x86_64: bind-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-chroot-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.i686.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-export-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.i686.rpm bind-libs-lite-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.i686.rpm bind-pkcs11-libs-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-utils-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-utils-9.11.4-26.P2.el7_9.13.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: bind-debuginfo-9.11.4-26.P2.el7_9.13.i686.rpm bind-debuginfo-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-export-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-lite-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.i686.rpm bind-pkcs11-devel-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-sdb-9.11.4-26.P2.el7_9.13.x86_64.rpm bind-sdb-chroot-9.11.4-26.P2.el7_9.13.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2021-25220 https://access.redhat.com/security/cve/CVE-2022-2795 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2023 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version:GnuPG v1 iQIVAwUBY9AIs9zjgjWX9erEAQiz9BAAiQvmAQ5DWdOQbHHizPAHBnKnBtNBfCT3 iaAzKQ0Yrpk26N9cdrvcBJwdrHpI28VJ3eemFUxQFseUqtAErsgfL4QqnjPjQgsp U2qLPjqbzfOrbi1CuruMMIIbtxfwvsdic8OB9Zi7XzfZjWm2X4c6Ima+QXol6x9a 8J2qdzCqhoYUXJgdpVK9nAAGsPtidcnqLYYIcTclJArp6uRSlEEk7EbNJvs2SAbj MUo5aq5BoVy2TkiMyqhT5voy6K8f4c7WbQYerNieps18541ZSr29fAzWBznr3Yns gE10Aaoa8uCxlaexFR8EahPVYe6wJAm6R62LBabEWChbzW0oxr7X2DdzX9eiOwl0 wJT0n4GHoFsCGMa+v1yybkjHIUfiW25WC7bC4QDj4fjTpbicVlnttXhQJwCJK5bb PC27GE6qi7EqwHYJa/jPenbIG38mXj/r2bwIr1qYQMLjQ8BQIneShky3ZWE4l/jd zTMwGVal8ACBYdCALx/O9QNyzaO92xHLnKl3DIoqaQdjasIfGp/G6Xc1YggKyZAP VVtXPiOIbReBVNWiBXMH1ZEQeNon4su0/MbMWrmJpwvEzYeXkuWO98LZ4dlLVuim NG/dJ6RqzT6/aqRNVyOt5s4SLIQ5DrPXoPnZRUBsbpWhP6lxPhESKA0TUg5FYz33 eDGIrZR4jEY=azJw -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. . Canonical issues a timely security notice for DHCP, resolving address allocation vulnerabilities and enhancing operational efficiency on Ubuntu 20.04.. bind update, Red Hat security, DNS security, RHEL advisory, caching vulnerabilities. . LinuxSecurity.com Team

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[{"id":483,"title":"Self-taught through trial and error","votes":556,"type":"x","order":1,"pct":78.75,"resources":[]},{"id":484,"title":"Formal training or courses","votes":30,"type":"x","order":2,"pct":4.25,"resources":[]},{"id":485,"title":"A job that required it","votes":34,"type":"x","order":3,"pct":4.82,"resources":[]},{"id":486,"title":"Other","votes":86,"type":"x","order":4,"pct":12.18,"resources":[]}] ["#ff5b00","#4ac0f2","#b80028","#eef66c","#60bb22","#b96a9a","#62c2cc"] ["rgba(255,91,0,0.7)","rgba(74,192,242,0.7)","rgba(184,0,40,0.7)","rgba(238,246,108,0.7)","rgba(96,187,34,0.7)","rgba(185,106,154,0.7)","rgba(98,194,204,0.7)"] 350
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