-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: nginx:1.18 security update Advisory ID: RHSA-2021:2259-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2259 Issue date: 2021-06-07 CVE Names: CVE-2021-23017 ===================================================================== 1. Summary: An update for the nginx:1.18 module is now available for Red Hat Enterprise Linux 8. 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 AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64 3. Description: nginx is a web and proxy server supporting HTTP and other protocols, with a focus on high concurrency, performance, and low memory usage. Security Fix(es): * nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name (CVE-2021-23017) 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 5. Bugs fixed (https://bugzilla.redhat.com/): 1963121 - CVE-2021-23017 nginx: Off-by-one in ngx_resolver_copy() when labels are followed by a pointer to a root domain name 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: nginx-1.18.0-3.module+el8.4.0+11152+f736ed63.1.src.rpm aarch64: nginx-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-debugsource-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-mod-http-image-filter-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-mod-http-image-filter-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-mod-http-perl-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-mod-http-perl-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-mod-http-xslt-filter-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-mod-http-xslt-filter-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-mod-mail-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-mod-mail-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-mod-stream-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm nginx-mod-stream-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.aarch64.rpm noarch: nginx-all-modules-1.18.0-3.module+el8.4.0+11152+f736ed63.1.noarch.rpm nginx-filesystem-1.18.0-3.module+el8.4.0+11152+f736ed63.1.noarch.rpm ppc64le: nginx-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-debugsource-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-mod-http-image-filter-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-mod-http-image-filter-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-mod-http-perl-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-mod-http-perl-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-mod-http-xslt-filter-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-mod-http-xslt-filter-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-mod-mail-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-mod-mail-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-mod-stream-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm nginx-mod-stream-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.ppc64le.rpm s390x: nginx-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-debugsource-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-mod-http-image-filter-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-mod-http-image-filter-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-mod-http-perl-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-mod-http-perl-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-mod-http-xslt-filter-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-mod-http-xslt-filter-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-mod-mail-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-mod-mail-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-mod-stream-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm nginx-mod-stream-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.s390x.rpm x86_64: nginx-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-debugsource-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-mod-http-image-filter-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-mod-http-image-filter-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-mod-http-perl-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-mod-http-perl-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-mod-http-xslt-filter-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-mod-http-xslt-filter-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-mod-mail-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-mod-mail-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-mod-stream-1.18.0-3.module+el8.4.0+11152+f736ed63.1.x86_64.rpm nginx-mod-stream-debuginfo-1.18.0-3.module+el8.4.0+11152+f736ed63.1.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-2021-23017 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: GnuPG v1 iQIVAwUBYL4APtzjgjWX9erEAQjhnxAAojPCQmgWmUaUOUAkFSVi4Mvs0udZBw6E SvMc1p2v6P90nWZstoCW1wz6JeVvfwZwULgX8BNWkoZI7rJoXKMf+mHO05YEhOMP xDNkjxCa1Sih8CKDprvD0muYKbhNFP4icK8xYxefB+AlFG32w0miL6QBrqDcTxsw td1BT/Co8Zz2PbNrwY6CoPzWNqWHT3baRfOiF9MGpcwQsZT1k0VALAxz27MAJ/pD oHEvoeXaZmSxheoWiqp4QNPShmK16xghzn6TEIvGpXHqQO6jtpbM+QtSwrX2/7um tUnn5iOiQH3gYWeT3dIYMKSuttq07XZQzmEkuWbqEu0rg/JXbShtKa1wZ+U985k9 Da61tsjGysq+wrcvFp1OjW3nzJ5GsA6wws4mChDuKI0hQGu1wOijMUBeD/dEAjo1 r81JuC0MIT/omu7ZhkmpqxQ8qjTChj3W8hkVsXSnTYwE3EPqMkVDAjHvtz6PttR9 H3fe/mj9lhIN47+qYNfONWsBpBm0JZJ52rzr/bJCN2JT5iZzocN3aff31q/FFW8O ZDblv7/VEdmyeqDVLQmLwOR9qL7xBNXwu0zBAyP6g2BYCJYAiXVn23jSQmjyOziO HNcf0cWGHrGMFWHNDMGlUg9YThoHIsN5dwVw2j0bPkyROiG5cViQ9bPGHKPBkn23 6BBo0Gx+Ujo= =gTXT -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce