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Red Hat 7.6: RHSA-2021-1478-01 Important Bind Assertion Fix

An update for bind is now available for Red Hat Enterprise Linux 7.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: bind security update Advisory ID: RHSA-2021:1478-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:1478 Issue date: 2021-05-03 CVE Names: CVE-2021-25215 ==================================================================== 1. Summary: An update for bind is now available for Red Hat Enterprise Linux 7.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. 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 ComputeNode EUS (v. 7.6) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.6) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 7.6) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, ppc64le, s390x 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: An assertion check can fail whileanswering queries for DNAME records that require the DNAME to be processed to resolve itself (CVE-2021-25215) 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/): 1953857 - CVE-2021-25215 bind: An assertion check can fail while answering queries for DNAME records that require the DNAME to be processed to resolve itself 6. Package List: Red Hat Enterprise Linux ComputeNode EUS (v. 7.6): Source: bind-9.9.4-74.el7_6.7.src.rpm noarch: bind-license-9.9.4-74.el7_6.7.noarch.rpm x86_64: bind-debuginfo-9.9.4-74.el7_6.7.i686.rpm bind-debuginfo-9.9.4-74.el7_6.7.x86_64.rpm bind-libs-9.9.4-74.el7_6.7.i686.rpm bind-libs-9.9.4-74.el7_6.7.x86_64.rpm bind-libs-lite-9.9.4-74.el7_6.7.i686.rpm bind-libs-lite-9.9.4-74.el7_6.7.x86_64.rpm bind-utils-9.9.4-74.el7_6.7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6): x86_64: bind-9.9.4-74.el7_6.7.x86_64.rpm bind-chroot-9.9.4-74.el7_6.7.x86_64.rpm bind-debuginfo-9.9.4-74.el7_6.7.i686.rpm bind-debuginfo-9.9.4-74.el7_6.7.x86_64.rpm bind-devel-9.9.4-74.el7_6.7.i686.rpm bind-devel-9.9.4-74.el7_6.7.x86_64.rpm bind-lite-devel-9.9.4-74.el7_6.7.i686.rpm bind-lite-devel-9.9.4-74.el7_6.7.x86_64.rpm bind-pkcs11-9.9.4-74.el7_6.7.x86_64.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.i686.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.x86_64.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.i686.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.x86_64.rpm bind-pkcs11-utils-9.9.4-74.el7_6.7.x86_64.rpm bind-sdb-9.9.4-74.el7_6.7.x86_64.rpm bind-sdb-chroot-9.9.4-74.el7_6.7.x86_64.rpm Red Hat Enterprise Linux Server EUS (v.7.6): Source: bind-9.9.4-74.el7_6.7.src.rpm noarch: bind-license-9.9.4-74.el7_6.7.noarch.rpm ppc64: bind-9.9.4-74.el7_6.7.ppc64.rpm bind-chroot-9.9.4-74.el7_6.7.ppc64.rpm bind-debuginfo-9.9.4-74.el7_6.7.ppc.rpm bind-debuginfo-9.9.4-74.el7_6.7.ppc64.rpm bind-libs-9.9.4-74.el7_6.7.ppc.rpm bind-libs-9.9.4-74.el7_6.7.ppc64.rpm bind-libs-lite-9.9.4-74.el7_6.7.ppc.rpm bind-libs-lite-9.9.4-74.el7_6.7.ppc64.rpm bind-utils-9.9.4-74.el7_6.7.ppc64.rpm ppc64le: bind-9.9.4-74.el7_6.7.ppc64le.rpm bind-chroot-9.9.4-74.el7_6.7.ppc64le.rpm bind-debuginfo-9.9.4-74.el7_6.7.ppc64le.rpm bind-libs-9.9.4-74.el7_6.7.ppc64le.rpm bind-libs-lite-9.9.4-74.el7_6.7.ppc64le.rpm bind-pkcs11-9.9.4-74.el7_6.7.ppc64le.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.ppc64le.rpm bind-pkcs11-utils-9.9.4-74.el7_6.7.ppc64le.rpm bind-utils-9.9.4-74.el7_6.7.ppc64le.rpm s390x: bind-9.9.4-74.el7_6.7.s390x.rpm bind-chroot-9.9.4-74.el7_6.7.s390x.rpm bind-debuginfo-9.9.4-74.el7_6.7.s390.rpm bind-debuginfo-9.9.4-74.el7_6.7.s390x.rpm bind-libs-9.9.4-74.el7_6.7.s390.rpm bind-libs-9.9.4-74.el7_6.7.s390x.rpm bind-libs-lite-9.9.4-74.el7_6.7.s390.rpm bind-libs-lite-9.9.4-74.el7_6.7.s390x.rpm bind-utils-9.9.4-74.el7_6.7.s390x.rpm x86_64: bind-9.9.4-74.el7_6.7.x86_64.rpm bind-chroot-9.9.4-74.el7_6.7.x86_64.rpm bind-debuginfo-9.9.4-74.el7_6.7.i686.rpm bind-debuginfo-9.9.4-74.el7_6.7.x86_64.rpm bind-libs-9.9.4-74.el7_6.7.i686.rpm bind-libs-9.9.4-74.el7_6.7.x86_64.rpm bind-libs-lite-9.9.4-74.el7_6.7.i686.rpm bind-libs-lite-9.9.4-74.el7_6.7.x86_64.rpm bind-pkcs11-9.9.4-74.el7_6.7.x86_64.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.i686.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.x86_64.rpm bind-pkcs11-utils-9.9.4-74.el7_6.7.x86_64.rpm bind-utils-9.9.4-74.el7_6.7.x86_64.rpm Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v.7): Source: bind-9.9.4-74.el7_6.7.src.rpm aarch64: bind-9.9.4-74.el7_6.7.aarch64.rpm bind-chroot-9.9.4-74.el7_6.7.aarch64.rpm bind-debuginfo-9.9.4-74.el7_6.7.aarch64.rpm bind-libs-9.9.4-74.el7_6.7.aarch64.rpm bind-libs-lite-9.9.4-74.el7_6.7.aarch64.rpm bind-pkcs11-9.9.4-74.el7_6.7.aarch64.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.aarch64.rpm bind-pkcs11-utils-9.9.4-74.el7_6.7.aarch64.rpm bind-utils-9.9.4-74.el7_6.7.aarch64.rpm noarch: bind-license-9.9.4-74.el7_6.7.noarch.rpm ppc64le: bind-9.9.4-74.el7_6.7.ppc64le.rpm bind-chroot-9.9.4-74.el7_6.7.ppc64le.rpm bind-debuginfo-9.9.4-74.el7_6.7.ppc64le.rpm bind-libs-9.9.4-74.el7_6.7.ppc64le.rpm bind-libs-lite-9.9.4-74.el7_6.7.ppc64le.rpm bind-pkcs11-9.9.4-74.el7_6.7.ppc64le.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.ppc64le.rpm bind-pkcs11-utils-9.9.4-74.el7_6.7.ppc64le.rpm bind-utils-9.9.4-74.el7_6.7.ppc64le.rpm s390x: bind-9.9.4-74.el7_6.7.s390x.rpm bind-chroot-9.9.4-74.el7_6.7.s390x.rpm bind-debuginfo-9.9.4-74.el7_6.7.s390.rpm bind-debuginfo-9.9.4-74.el7_6.7.s390x.rpm bind-libs-9.9.4-74.el7_6.7.s390.rpm bind-libs-9.9.4-74.el7_6.7.s390x.rpm bind-libs-lite-9.9.4-74.el7_6.7.s390.rpm bind-libs-lite-9.9.4-74.el7_6.7.s390x.rpm bind-utils-9.9.4-74.el7_6.7.s390x.rpm Red Hat Enterprise Linux Server Optional EUS (v.7.6): ppc64: bind-debuginfo-9.9.4-74.el7_6.7.ppc.rpm bind-debuginfo-9.9.4-74.el7_6.7.ppc64.rpm bind-devel-9.9.4-74.el7_6.7.ppc.rpm bind-devel-9.9.4-74.el7_6.7.ppc64.rpm bind-lite-devel-9.9.4-74.el7_6.7.ppc.rpm bind-lite-devel-9.9.4-74.el7_6.7.ppc64.rpm bind-pkcs11-9.9.4-74.el7_6.7.ppc64.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.ppc.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.ppc64.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.ppc.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.ppc64.rpm bind-pkcs11-utils-9.9.4-74.el7_6.7.ppc64.rpm bind-sdb-9.9.4-74.el7_6.7.ppc64.rpm bind-sdb-chroot-9.9.4-74.el7_6.7.ppc64.rpm ppc64le: bind-debuginfo-9.9.4-74.el7_6.7.ppc64le.rpm bind-devel-9.9.4-74.el7_6.7.ppc64le.rpm bind-lite-devel-9.9.4-74.el7_6.7.ppc64le.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.ppc64le.rpm bind-sdb-9.9.4-74.el7_6.7.ppc64le.rpm bind-sdb-chroot-9.9.4-74.el7_6.7.ppc64le.rpm s390x: bind-debuginfo-9.9.4-74.el7_6.7.s390.rpm bind-debuginfo-9.9.4-74.el7_6.7.s390x.rpm bind-devel-9.9.4-74.el7_6.7.s390.rpm bind-devel-9.9.4-74.el7_6.7.s390x.rpm bind-lite-devel-9.9.4-74.el7_6.7.s390.rpm bind-lite-devel-9.9.4-74.el7_6.7.s390x.rpm bind-pkcs11-9.9.4-74.el7_6.7.s390x.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.s390.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.s390x.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.s390.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.s390x.rpm bind-pkcs11-utils-9.9.4-74.el7_6.7.s390x.rpm bind-sdb-9.9.4-74.el7_6.7.s390x.rpm bind-sdb-chroot-9.9.4-74.el7_6.7.s390x.rpm x86_64: bind-debuginfo-9.9.4-74.el7_6.7.i686.rpm bind-debuginfo-9.9.4-74.el7_6.7.x86_64.rpm bind-devel-9.9.4-74.el7_6.7.i686.rpm bind-devel-9.9.4-74.el7_6.7.x86_64.rpm bind-lite-devel-9.9.4-74.el7_6.7.i686.rpm bind-lite-devel-9.9.4-74.el7_6.7.x86_64.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.i686.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.x86_64.rpm bind-sdb-9.9.4-74.el7_6.7.x86_64.rpm bind-sdb-chroot-9.9.4-74.el7_6.7.x86_64.rpm Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v.7): aarch64: bind-debuginfo-9.9.4-74.el7_6.7.aarch64.rpm bind-devel-9.9.4-74.el7_6.7.aarch64.rpm bind-lite-devel-9.9.4-74.el7_6.7.aarch64.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.aarch64.rpm bind-sdb-9.9.4-74.el7_6.7.aarch64.rpm bind-sdb-chroot-9.9.4-74.el7_6.7.aarch64.rpm ppc64le: bind-debuginfo-9.9.4-74.el7_6.7.ppc64le.rpm bind-devel-9.9.4-74.el7_6.7.ppc64le.rpm bind-lite-devel-9.9.4-74.el7_6.7.ppc64le.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.ppc64le.rpm bind-sdb-9.9.4-74.el7_6.7.ppc64le.rpm bind-sdb-chroot-9.9.4-74.el7_6.7.ppc64le.rpm s390x: bind-debuginfo-9.9.4-74.el7_6.7.s390.rpm bind-debuginfo-9.9.4-74.el7_6.7.s390x.rpm bind-devel-9.9.4-74.el7_6.7.s390.rpm bind-devel-9.9.4-74.el7_6.7.s390x.rpm bind-lite-devel-9.9.4-74.el7_6.7.s390.rpm bind-lite-devel-9.9.4-74.el7_6.7.s390x.rpm bind-pkcs11-9.9.4-74.el7_6.7.s390x.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.s390.rpm bind-pkcs11-devel-9.9.4-74.el7_6.7.s390x.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.s390.rpm bind-pkcs11-libs-9.9.4-74.el7_6.7.s390x.rpm bind-pkcs11-utils-9.9.4-74.el7_6.7.s390x.rpm bind-sdb-9.9.4-74.el7_6.7.s390x.rpm bind-sdb-chroot-9.9.4-74.el7_6.7.s390x.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-2021-25215 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPGv1 iQIVAwUBYI+tG9zjgjWX9erEAQjWuw//V64fu7hW02poef5ofb/8hmW14Hu9l53i Kke1iKOGF40/lq3eoyW+NwOyQMPppigqCzp6pXR+yvEurt82MTvyk4T0KYRvpFDe CHLF01wRGf7Sphsnp/NcMr8lykRsDVQbQ4xgJpqt5PSPrXngvFIx3DMv7DcKt0X+ tPjyh5iHCKOQkWbv2mLt6+grVGqBqtGHUyrDpKdX22Deiriqzlutvkjr8XKe0WOT 7Crq6jtOKJkftPzfHds3BZYGL5Sz+qEDz/fYQMZcqNRYM2zZMjuof2kOiNPsq1Yh Qe/YflVdOm7JeS9+VlcR3VpG02sbNcA0Eb9lPV1MsW1t5Delpg3lNpt6+uysEAD5 7O0wnTcLOUb8EzcIHnunRusWuwLF9wfFxA7csYxxPkz5kR1ij7iOOzKiHEhbSquf luGd5d4RV/QWzIBx8wiDlRBt8fbsx7ht48iErTzUGVTDCNHWfht00Gr3UUsQRQU2 aTBFThIoTTQdUaYBj78Fb/swA9J3lYirtnDZV1bjOHTc2/RXeYsvQ18kt+b1+91u pHLyw/mpw/G9E9dtdYoxwCamoFvW2wbzV0dm4SUrEQU5Sw5I6TCKK6UfUVXb9kr2 X3sdwm6h0IZc2z6lJTwNXMPux46xzjoR9huMuX5ETzMXhRrBI1WhAppZUQVr851w Pxrn0eBmTKo=Juah -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. https://listman.redhat.com/mailman/listinfo/rhsa-announce . Red Hat announces significant upgrade for bind addressing critical security flaws in DNS servers specifically for enterprise clientele.. Red Hat Bind Update, Enterprise Linux Security, DNS Vulnerability Fix. . Severity: Important. LinuxSecurity.com Team

May 03, 2021 •Important Red Hat