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security advisoryRed Hat EnterpriseBIND

RedHat: RHSA-2020-3433-01 Important: BIND Fetch Limitation Issue

An update for bind is now available for Red Hat Enterprise Linux 7.4 Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions.. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: bind security update Advisory ID: RHSA-2020:3433-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:3433 Issue date: 2020-08-12 CVE Names: CVE-2020-8616 CVE-2020-8617 ==================================================================== 1. Summary: An update for bind is now available for Red Hat Enterprise Linux 7.4 Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions. 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 Server AUS (v. 7.4) - noarch, x86_64 Red Hat Enterprise Linux Server E4S (v. 7.4) - noarch, ppc64le, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server Optional E4S (v. 7.4) - ppc64le, x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.4) - noarch, 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: BIND does not sufficiently limit thenumber of fetches performed when processing referrals (CVE-2020-8616) * bind: A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c (CVE-2020-8617) 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/): 1836118 - CVE-2020-8616 bind: BIND does not sufficiently limit the number of fetches performed when processing referrals 1836124 - CVE-2020-8617 bind: A logic error in code which checks TSIG validity can be used to trigger an assertion failure in tsig.c 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.4): Source: bind-9.9.4-51.el7_4.4.src.rpm noarch: bind-license-9.9.4-51.el7_4.4.noarch.rpm x86_64: bind-9.9.4-51.el7_4.4.x86_64.rpm bind-chroot-9.9.4-51.el7_4.4.x86_64.rpm bind-debuginfo-9.9.4-51.el7_4.4.i686.rpm bind-debuginfo-9.9.4-51.el7_4.4.x86_64.rpm bind-libs-9.9.4-51.el7_4.4.i686.rpm bind-libs-9.9.4-51.el7_4.4.x86_64.rpm bind-libs-lite-9.9.4-51.el7_4.4.i686.rpm bind-libs-lite-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-libs-9.9.4-51.el7_4.4.i686.rpm bind-pkcs11-libs-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-utils-9.9.4-51.el7_4.4.x86_64.rpm bind-utils-9.9.4-51.el7_4.4.x86_64.rpm Red Hat Enterprise Linux Server E4S (v.7.4): Source: bind-9.9.4-51.el7_4.4.src.rpm noarch: bind-license-9.9.4-51.el7_4.4.noarch.rpm ppc64le: bind-9.9.4-51.el7_4.4.ppc64le.rpm bind-chroot-9.9.4-51.el7_4.4.ppc64le.rpm bind-debuginfo-9.9.4-51.el7_4.4.ppc64le.rpm bind-libs-9.9.4-51.el7_4.4.ppc64le.rpm bind-libs-lite-9.9.4-51.el7_4.4.ppc64le.rpm bind-pkcs11-9.9.4-51.el7_4.4.ppc64le.rpm bind-pkcs11-libs-9.9.4-51.el7_4.4.ppc64le.rpm bind-pkcs11-utils-9.9.4-51.el7_4.4.ppc64le.rpm bind-utils-9.9.4-51.el7_4.4.ppc64le.rpm x86_64: bind-9.9.4-51.el7_4.4.x86_64.rpm bind-chroot-9.9.4-51.el7_4.4.x86_64.rpm bind-debuginfo-9.9.4-51.el7_4.4.i686.rpm bind-debuginfo-9.9.4-51.el7_4.4.x86_64.rpm bind-libs-9.9.4-51.el7_4.4.i686.rpm bind-libs-9.9.4-51.el7_4.4.x86_64.rpm bind-libs-lite-9.9.4-51.el7_4.4.i686.rpm bind-libs-lite-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-libs-9.9.4-51.el7_4.4.i686.rpm bind-pkcs11-libs-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-utils-9.9.4-51.el7_4.4.x86_64.rpm bind-utils-9.9.4-51.el7_4.4.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.4): Source: bind-9.9.4-51.el7_4.4.src.rpm noarch: bind-license-9.9.4-51.el7_4.4.noarch.rpm x86_64: bind-9.9.4-51.el7_4.4.x86_64.rpm bind-chroot-9.9.4-51.el7_4.4.x86_64.rpm bind-debuginfo-9.9.4-51.el7_4.4.i686.rpm bind-debuginfo-9.9.4-51.el7_4.4.x86_64.rpm bind-libs-9.9.4-51.el7_4.4.i686.rpm bind-libs-9.9.4-51.el7_4.4.x86_64.rpm bind-libs-lite-9.9.4-51.el7_4.4.i686.rpm bind-libs-lite-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-libs-9.9.4-51.el7_4.4.i686.rpm bind-pkcs11-libs-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-utils-9.9.4-51.el7_4.4.x86_64.rpm bind-utils-9.9.4-51.el7_4.4.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v.7.4): x86_64: bind-debuginfo-9.9.4-51.el7_4.4.i686.rpm bind-debuginfo-9.9.4-51.el7_4.4.x86_64.rpm bind-devel-9.9.4-51.el7_4.4.i686.rpm bind-devel-9.9.4-51.el7_4.4.x86_64.rpm bind-lite-devel-9.9.4-51.el7_4.4.i686.rpm bind-lite-devel-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-devel-9.9.4-51.el7_4.4.i686.rpm bind-pkcs11-devel-9.9.4-51.el7_4.4.x86_64.rpm bind-sdb-9.9.4-51.el7_4.4.x86_64.rpm bind-sdb-chroot-9.9.4-51.el7_4.4.x86_64.rpm Red Hat Enterprise Linux Server Optional E4S (v. 7.4): ppc64le: bind-debuginfo-9.9.4-51.el7_4.4.ppc64le.rpm bind-devel-9.9.4-51.el7_4.4.ppc64le.rpm bind-lite-devel-9.9.4-51.el7_4.4.ppc64le.rpm bind-pkcs11-devel-9.9.4-51.el7_4.4.ppc64le.rpm bind-sdb-9.9.4-51.el7_4.4.ppc64le.rpm bind-sdb-chroot-9.9.4-51.el7_4.4.ppc64le.rpm x86_64: bind-debuginfo-9.9.4-51.el7_4.4.i686.rpm bind-debuginfo-9.9.4-51.el7_4.4.x86_64.rpm bind-devel-9.9.4-51.el7_4.4.i686.rpm bind-devel-9.9.4-51.el7_4.4.x86_64.rpm bind-lite-devel-9.9.4-51.el7_4.4.i686.rpm bind-lite-devel-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-devel-9.9.4-51.el7_4.4.i686.rpm bind-pkcs11-devel-9.9.4-51.el7_4.4.x86_64.rpm bind-sdb-9.9.4-51.el7_4.4.x86_64.rpm bind-sdb-chroot-9.9.4-51.el7_4.4.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 7.4): x86_64: bind-debuginfo-9.9.4-51.el7_4.4.i686.rpm bind-debuginfo-9.9.4-51.el7_4.4.x86_64.rpm bind-devel-9.9.4-51.el7_4.4.i686.rpm bind-devel-9.9.4-51.el7_4.4.x86_64.rpm bind-lite-devel-9.9.4-51.el7_4.4.i686.rpm bind-lite-devel-9.9.4-51.el7_4.4.x86_64.rpm bind-pkcs11-devel-9.9.4-51.el7_4.4.i686.rpm bind-pkcs11-devel-9.9.4-51.el7_4.4.x86_64.rpm bind-sdb-9.9.4-51.el7_4.4.x86_64.rpm bind-sdb-chroot-9.9.4-51.el7_4.4.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-2020-8616 https://access.redhat.com/security/cve/CVE-2020-8617 https://access.redhat.com/security/updates/classification/#important 8. Contact: TheRed Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXzPV8dzjgjWX9erEAQgCUA//dmZr/zZbkimNYOaBBZ00RvF26rGRA7yV yVgYREXrAF1lgd78GDJ7rL0Y1r7rIursw/la069kK4F8efbSG4o8b4VUtC85+E+Q O6crm0Dm17ns4a5ix97uliNk+H9tyjKPVW4aQFJujhSD+Dx5y9bOByfv8HFI4oh3 tCWmgFoPjcEpWMuIGR1saqrbFWN1Ukz3867jCLaWUr8b4A7XxngDPwd7qtceLpSW jYt5OaTIhOV3kjICJ5jY69S1D5Ab17/ObGfaq8nOJcRin+XvZgcfgWt00QI+mYkA ex63m8aGGE3o32MCS/6wsGY/4vP8U7XNe19f9JQTG8ZA4S/PdUJW7y5oRFEWgHg7 HtveWp+EkGyOB1HU7dRVVBP1lhMaWlz55WjhBoNc6xjV7Zi3IU/W1O85AOL8VtxX XzI6Gk+FWFOgocfLh7DexFOj+4iCtX7Ew3862PPwME1bXh4ijlKgkYvcotJCLCL6 IQGGLWIjIT8BBr1avjTBn998XBx3UxFzyo4QyQRB38fzKaYRXbMPXNWSmlq1CtA3 U0m5D2TVZGgVEH7/jlWHWzhNpO1TfhHEyyIDHWBpobATTVvToHeCdcQsDbZpuT3/ 8jdswGAx+PKQJI4Q4sPzsfXrXbUew/aS2kybTrkKVuGntIvY0C1EcLYZjbNHEKcG e/FXzzEtVBw=d4RR -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. . Security Alert for Red Hat Enterprise Linux 7.4: Essential BIND upgrade resolves critical security flaws. RedHat Updates, BIND Security, Linux Advisory, Security Fixes, DNS Implementation. . Severity: Important. LinuxSecurity.com Team

Aug 12, 2020 •Important Red Hat