-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Moderate: unbound security, bug fix, and enhancement update Advisory ID: RHSA-2021:1853-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:1853 Issue date: 2021-05-18 CVE Names: CVE-2019-25032 CVE-2019-25034 CVE-2019-25035 CVE-2019-25036 CVE-2019-25037 CVE-2019-25038 CVE-2019-25039 CVE-2019-25040 CVE-2019-25041 CVE-2019-25042 CVE-2020-28935 ==================================================================== 1. Summary: An update for unbound is now available for Red Hat Enterprise Linux 8. 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 AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64 3. Description: The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fix(es): * unbound: integer overflow in the regional allocator via regional_alloc (CVE-2019-25032) * unbound: integer overflow in sldns_str2wire_dname_buf_origin can lead to an out-of-bounds write (CVE-2019-25034) * unbound: out-of-bounds write in sldns_bget_token_par (CVE-2019-25035) * unbound: assertion failure and denial of service in synth_cname (CVE-2019-25036) * unbound: assertion failure and denial of service in dname_pkt_copy via an invalid packet (CVE-2019-25037) * unbound: integer overflow in a size calculation in dnscrypt/dnscrypt.c (CVE-2019-25038) * unbound: integer overflow in a size calculation in respip/respip.c (CVE-2019-25039) * unbound: infinite loop via a compressed name in dname_pkt_copy (CVE-2019-25040) * unbound: assertion failure via a compressed name in dname_pkt_copy (CVE-2019-25041) * unbound: out-of-bounds write via a compressed name in rdata_copy (CVE-2019-25042) * unbound: symbolic link traversal when writing PID file (CVE-2020-28935) 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. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from 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/): 1714175 - Fix SPEC file to not check md5 mtime and size of /var/lib/unbound/root.key 1842837 - rpmlint reports crypto-policy-non-compliance-openssl 1850460 - Enable additional logging in unbound in RHEL8 1878761 - CVE-2020-28935 unbound: symbolic link traversal when writing PID file 1954772 - CVE-2019-25032 unbound: integer overflow in the regional allocator via regional_alloc 1954778 - CVE-2019-25034 unbound: integer overflow in sldns_str2wire_dname_buf_origin can lead to an out-of-bounds write 1954780 - CVE-2019-25035 unbound: out-of-bounds write in sldns_bget_token_par 1954782 - CVE-2019-25036 unbound: assertion failure and denial of service in synth_cname 1954794 - CVE-2019-25037 unbound: assertion failure and denial of service in dname_pkt_copy via an invalid packet 1954796 - CVE-2019-25038 unbound: integer overflow in a size calculation in dnscrypt/dnscrypt.c 1954797 - CVE-2019-25039 unbound: integer overflow in a size calculation in respip/respip.c 1954799 - CVE-2019-25040 unbound: infinite loop via a compressed name in dname_pkt_copy 1954801 - CVE-2019-25041 unbound: assertion failure via a compressed name in dname_pkt_copy 1954804 - CVE-2019-25042 unbound: out-of-bounds write via a compressed name in rdata_copy 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: unbound-1.7.3-15.el8.src.rpm aarch64: python3-unbound-1.7.3-15.el8.aarch64.rpm python3-unbound-debuginfo-1.7.3-15.el8.aarch64.rpm unbound-1.7.3-15.el8.aarch64.rpm unbound-debuginfo-1.7.3-15.el8.aarch64.rpm unbound-debugsource-1.7.3-15.el8.aarch64.rpm unbound-devel-1.7.3-15.el8.aarch64.rpm unbound-libs-1.7.3-15.el8.aarch64.rpm unbound-libs-debuginfo-1.7.3-15.el8.aarch64.rpm ppc64le: python3-unbound-1.7.3-15.el8.ppc64le.rpm python3-unbound-debuginfo-1.7.3-15.el8.ppc64le.rpm unbound-1.7.3-15.el8.ppc64le.rpm unbound-debuginfo-1.7.3-15.el8.ppc64le.rpm unbound-debugsource-1.7.3-15.el8.ppc64le.rpm unbound-devel-1.7.3-15.el8.ppc64le.rpm unbound-libs-1.7.3-15.el8.ppc64le.rpm unbound-libs-debuginfo-1.7.3-15.el8.ppc64le.rpm s390x: python3-unbound-1.7.3-15.el8.s390x.rpm python3-unbound-debuginfo-1.7.3-15.el8.s390x.rpm unbound-1.7.3-15.el8.s390x.rpm unbound-debuginfo-1.7.3-15.el8.s390x.rpm unbound-debugsource-1.7.3-15.el8.s390x.rpm unbound-devel-1.7.3-15.el8.s390x.rpm unbound-libs-1.7.3-15.el8.s390x.rpm unbound-libs-debuginfo-1.7.3-15.el8.s390x.rpm x86_64: python3-unbound-1.7.3-15.el8.x86_64.rpm python3-unbound-debuginfo-1.7.3-15.el8.i686.rpm python3-unbound-debuginfo-1.7.3-15.el8.x86_64.rpm unbound-1.7.3-15.el8.x86_64.rpm unbound-debuginfo-1.7.3-15.el8.i686.rpm unbound-debuginfo-1.7.3-15.el8.x86_64.rpm unbound-debugsource-1.7.3-15.el8.i686.rpm unbound-debugsource-1.7.3-15.el8.x86_64.rpm unbound-devel-1.7.3-15.el8.i686.rpm unbound-devel-1.7.3-15.el8.x86_64.rpm unbound-libs-1.7.3-15.el8.i686.rpm unbound-libs-1.7.3-15.el8.x86_64.rpm unbound-libs-debuginfo-1.7.3-15.el8.i686.rpm unbound-libs-debuginfo-1.7.3-15.el8.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-2019-25032 https://access.redhat.com/security/cve/CVE-2019-25034 https://access.redhat.com/security/cve/CVE-2019-25035 https://access.redhat.com/security/cve/CVE-2019-25036 https://access.redhat.com/security/cve/CVE-2019-25037 https://access.redhat.com/security/cve/CVE-2019-25038 https://access.redhat.com/security/cve/CVE-2019-25039 https://access.redhat.com/security/cve/CVE-2019-25040 https://access.redhat.com/security/cve/CVE-2019-25041 https://access.redhat.com/security/cve/CVE-2019-25042 https://access.redhat.com/security/cve/CVE-2020-28935 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/ 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 iQIVAwUBYKPwAtzjgjWX9erEAQhuNQ/+OXL/okasiNW5kNWz4aWcMGKWJJUhnxup bmaabHyD+XMzziWIFXcY4/DVB9EEG/t1mC1330n/WrhBExJqCsUjAH625v6zVdq0 L8jf1vyet3Y9OImQ3nnjCvT+Mqy4BMU++817w8jIhyhFaus2RdqXPqiZPUQ/zARX IxCu8TVzOY3YbzWkREi4ckuHTNRDlIuvzG+839h84Eq/ThmARNnR1bFo4PhC9vvS II5JqkKQbhwr3vSylXM8tgHTCP5h0DWZx9R8Jf9ZHrP0Mu9TzAHOBd/GQ3OVlnlB zXZSmbOUStm5V/xCUgzrq6O4M7uP+6B5M5bRsaVCGRqEUwg5m5kOlYvXYt1qPRC1 Bxx4NzaM+OEt3F6Q5BhMD740d5q/XKUF0ARpFJhbVlQq4jBsyrCqInv+9OiWZ3sB b2d/s+00Ttcyh5QZhIHmOSbwpNT9A/+97Ds74tFOt43hXnaKUGrRcEz4gswlxVgS 3b7jE3AHdDhlMygmmzc2I4Bqr97fEyoFhgCrgIkLOQRjAu/jZxLpEpFYh+nhXzul 5xwok7BpnbVF1wtV3IC0NJlk62Z49aCnvjULbwUwtHWeQwnjSAYgg/uZ0IkYE8Wp FwZ3ViBHn8b3w/SyFxb9l+0npVbNGwMkLzZlswbZaMnawdbk18aP9d2Ib2ePp0xj eW5HMpvjk1Y=JQKL -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce