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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.3389 expat security update 30 September 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: expat Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 7 Red Hat Enterprise Linux WS/Desktop 7 Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-15903 CVE-2018-20843 Reference: ASB-2020.0072 ASB-2019.0309 ESB-2020.2162 ESB-2020.1387 ESB-2020.0737 Original Bulletin: https://access.redhat.com/errata/RHSA-2020:3952 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: expat security update Advisory ID: RHSA-2020:3952-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:3952 Issue date: 2020-09-29 CVE Names: CVE-2018-20843 CVE-2019-15903 ===================================================================== 1. Summary: An update for expat 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) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - 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) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: Expat is a C library for parsing XML documents. Security Fix(es): * expat: large number of colons in input makes parser consume high amount of resources, leading to DoS (CVE-2018-20843) * expat: heap-based buffer over-read via crafted XML input (CVE-2019-15903) 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 7.9 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 After installing the updated packages, applications using the Expat library must be restarted for the update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1723723 - CVE-2018-20843 expat: large number of colons in input makes parser consume high amount of resources, leading to DoS 1752592 - CVE-2019-15903 expat: heap-based buffer over-read via crafted XML input 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: expat-2.1.0-12.el7.src.rpm x86_64: expat-2.1.0-12.el7.i686.rpm expat-2.1.0-12.el7.x86_64.rpm expat-debuginfo-2.1.0-12.el7.i686.rpm expat-debuginfo-2.1.0-12.el7.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: expat-debuginfo-2.1.0-12.el7.i686.rpm expat-debuginfo-2.1.0-12.el7.x86_64.rpm expat-devel-2.1.0-12.el7.i686.rpm expat-devel-2.1.0-12.el7.x86_64.rpm expat-static-2.1.0-12.el7.i686.rpm expat-static-2.1.0-12.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: expat-2.1.0-12.el7.src.rpm x86_64: expat-2.1.0-12.el7.i686.rpm expat-2.1.0-12.el7.x86_64.rpm expat-debuginfo-2.1.0-12.el7.i686.rpm expat-debuginfo-2.1.0-12.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: expat-debuginfo-2.1.0-12.el7.i686.rpm expat-debuginfo-2.1.0-12.el7.x86_64.rpm expat-devel-2.1.0-12.el7.i686.rpm expat-devel-2.1.0-12.el7.x86_64.rpm expat-static-2.1.0-12.el7.i686.rpm expat-static-2.1.0-12.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: expat-2.1.0-12.el7.src.rpm ppc64: expat-2.1.0-12.el7.ppc.rpm expat-2.1.0-12.el7.ppc64.rpm expat-debuginfo-2.1.0-12.el7.ppc.rpm expat-debuginfo-2.1.0-12.el7.ppc64.rpm expat-devel-2.1.0-12.el7.ppc.rpm expat-devel-2.1.0-12.el7.ppc64.rpm ppc64le: expat-2.1.0-12.el7.ppc64le.rpm expat-debuginfo-2.1.0-12.el7.ppc64le.rpm expat-devel-2.1.0-12.el7.ppc64le.rpm s390x: expat-2.1.0-12.el7.s390.rpm expat-2.1.0-12.el7.s390x.rpm expat-debuginfo-2.1.0-12.el7.s390.rpm expat-debuginfo-2.1.0-12.el7.s390x.rpm expat-devel-2.1.0-12.el7.s390.rpm expat-devel-2.1.0-12.el7.s390x.rpm x86_64: expat-2.1.0-12.el7.i686.rpm expat-2.1.0-12.el7.x86_64.rpm expat-debuginfo-2.1.0-12.el7.i686.rpm expat-debuginfo-2.1.0-12.el7.x86_64.rpm expat-devel-2.1.0-12.el7.i686.rpm expat-devel-2.1.0-12.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: expat-debuginfo-2.1.0-12.el7.ppc.rpm expat-debuginfo-2.1.0-12.el7.ppc64.rpm expat-static-2.1.0-12.el7.ppc.rpm expat-static-2.1.0-12.el7.ppc64.rpm ppc64le: expat-debuginfo-2.1.0-12.el7.ppc64le.rpm expat-static-2.1.0-12.el7.ppc64le.rpm s390x: expat-debuginfo-2.1.0-12.el7.s390.rpm expat-debuginfo-2.1.0-12.el7.s390x.rpm expat-static-2.1.0-12.el7.s390.rpm expat-static-2.1.0-12.el7.s390x.rpm x86_64: expat-debuginfo-2.1.0-12.el7.i686.rpm expat-debuginfo-2.1.0-12.el7.x86_64.rpm expat-static-2.1.0-12.el7.i686.rpm expat-static-2.1.0-12.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: expat-2.1.0-12.el7.src.rpm x86_64: expat-2.1.0-12.el7.i686.rpm expat-2.1.0-12.el7.x86_64.rpm expat-debuginfo-2.1.0-12.el7.i686.rpm expat-debuginfo-2.1.0-12.el7.x86_64.rpm expat-devel-2.1.0-12.el7.i686.rpm expat-devel-2.1.0-12.el7.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: expat-debuginfo-2.1.0-12.el7.i686.rpm expat-debuginfo-2.1.0-12.el7.x86_64.rpm expat-static-2.1.0-12.el7.i686.rpm expat-static-2.1.0-12.el7.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-2018-20843 https://access.redhat.com/security/cve/CVE-2019-15903 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.9_release_notes/index 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBX3OjPNzjgjWX9erEAQiOZQ//XKbEFrETK1GIRxNF9uoj2H5yLa2Jgv/q AlPC3c17mb4dMqZcXIWlQ3BhVV16JFzeKeeTZ/ZczBAhxH6f3hF1qE8x4dV9fmVk nLA6P639PGo9+Iby5Npnaez95UpWAAMsgImaas6e+GXD+Rbo4uKK2hjnNqXWmRpv z04nD7LmBGxtc6zJl34TcUQWWiz0aNh5O2IpQMmSI5tUYxWXjjUCHAv6YmRHgTf/ V8CAxY6dcIWiP9KEh18Usbl5/MOtXrFafL0Nf7+M/hhovzpl6WP2FgqK/jE9WUcJ FOv8k6Shj2ilqlcGGRMEXLWbNFsH0W6wkoybHR0NKM6FfAB4a73Ld6LxXzLGJUDW 5TuBK1nNllMv8LVB4RdQ3qi5O6i3d7LbDM4Crg9BAoxx91Rggi906jfJ66oC5ze3 G5finlXeYMaz6t27SkHnndRF/ASoEsjVsW6qHpAX7Ww/RWgkXNemTgnqoOuxLYwL OL/UhM6NpUNM+KfLNhH4eiYMKGU93ugnSeM/gUGEhW+DJpiCRrFQBWjUS/L7EqG/ GxaNDIKOmQz5neIK48VNozp6xibksxZ0qase/1kOL1yAGykSa453cnyL/bNykvAX Cjsv0Qaary6X3ePx4JIRetum//0sNnnfJ+3lFu2J4LaUwMjn2+eizczBpaa4a5al cAEr5IhYQe4= =DmhY - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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