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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.3868 libxml2 security update 6 November 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: libxml2 Publisher: Red Hat Operating System: Red Hat Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-7595 CVE-2019-20388 CVE-2019-19956 Reference: ESB-2020.3364 ESB-2020.3248 ESB-2020.3102 ESB-2020.2475 Original Bulletin: https://access.redhat.com/errata/RHSA-2020:4479 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: libxml2 security update Advisory ID: RHSA-2020:4479-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:4479 Issue date: 2020-11-03 CVE Names: CVE-2019-19956 CVE-2019-20388 CVE-2020-7595 ===================================================================== 1. Summary: An update for libxml2 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 Red Hat Enterprise Linux BaseOS (v. 8) - aarch64, ppc64le, s390x, x86_64 3. Description: The libxml2 library is a development toolbox providing the implementation of various XML standards. Security Fix(es): * libxml2: memory leak in xmlParseBalancedChunkMemoryRecover in parser.c (CVE-2019-19956) * libxml2: memory leak in xmlSchemaPreRun in xmlschemas.c (CVE-2019-20388) * libxml2: infinite loop in xmlStringLenDecodeEntities in some end-of-file situations (CVE-2020-7595) 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 8.3 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 The desktop must be restarted (log out, then log back in) for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1788856 - CVE-2019-19956 libxml2: memory leak in xmlParseBalancedChunkMemoryRecover in parser.c 1799734 - CVE-2019-20388 libxml2: memory leak in xmlSchemaPreRun in xmlschemas.c 1799786 - CVE-2020-7595 libxml2: infinite loop in xmlStringLenDecodeEntities in some end-of-file situations 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): aarch64: libxml2-debuginfo-2.9.7-8.el8.aarch64.rpm libxml2-debugsource-2.9.7-8.el8.aarch64.rpm libxml2-devel-2.9.7-8.el8.aarch64.rpm python3-libxml2-debuginfo-2.9.7-8.el8.aarch64.rpm ppc64le: libxml2-debuginfo-2.9.7-8.el8.ppc64le.rpm libxml2-debugsource-2.9.7-8.el8.ppc64le.rpm libxml2-devel-2.9.7-8.el8.ppc64le.rpm python3-libxml2-debuginfo-2.9.7-8.el8.ppc64le.rpm s390x: libxml2-debuginfo-2.9.7-8.el8.s390x.rpm libxml2-debugsource-2.9.7-8.el8.s390x.rpm libxml2-devel-2.9.7-8.el8.s390x.rpm python3-libxml2-debuginfo-2.9.7-8.el8.s390x.rpm x86_64: libxml2-debuginfo-2.9.7-8.el8.i686.rpm libxml2-debuginfo-2.9.7-8.el8.x86_64.rpm libxml2-debugsource-2.9.7-8.el8.i686.rpm libxml2-debugsource-2.9.7-8.el8.x86_64.rpm libxml2-devel-2.9.7-8.el8.i686.rpm libxml2-devel-2.9.7-8.el8.x86_64.rpm python3-libxml2-debuginfo-2.9.7-8.el8.i686.rpm python3-libxml2-debuginfo-2.9.7-8.el8.x86_64.rpm Red Hat Enterprise Linux BaseOS (v. 8): Source: libxml2-2.9.7-8.el8.src.rpm aarch64: libxml2-2.9.7-8.el8.aarch64.rpm libxml2-debuginfo-2.9.7-8.el8.aarch64.rpm libxml2-debugsource-2.9.7-8.el8.aarch64.rpm python3-libxml2-2.9.7-8.el8.aarch64.rpm python3-libxml2-debuginfo-2.9.7-8.el8.aarch64.rpm ppc64le: libxml2-2.9.7-8.el8.ppc64le.rpm libxml2-debuginfo-2.9.7-8.el8.ppc64le.rpm libxml2-debugsource-2.9.7-8.el8.ppc64le.rpm python3-libxml2-2.9.7-8.el8.ppc64le.rpm python3-libxml2-debuginfo-2.9.7-8.el8.ppc64le.rpm s390x: libxml2-2.9.7-8.el8.s390x.rpm libxml2-debuginfo-2.9.7-8.el8.s390x.rpm libxml2-debugsource-2.9.7-8.el8.s390x.rpm python3-libxml2-2.9.7-8.el8.s390x.rpm python3-libxml2-debuginfo-2.9.7-8.el8.s390x.rpm x86_64: libxml2-2.9.7-8.el8.i686.rpm libxml2-2.9.7-8.el8.x86_64.rpm libxml2-debuginfo-2.9.7-8.el8.i686.rpm libxml2-debuginfo-2.9.7-8.el8.x86_64.rpm libxml2-debugsource-2.9.7-8.el8.i686.rpm libxml2-debugsource-2.9.7-8.el8.x86_64.rpm python3-libxml2-2.9.7-8.el8.x86_64.rpm python3-libxml2-debuginfo-2.9.7-8.el8.i686.rpm python3-libxml2-debuginfo-2.9.7-8.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-2019-19956 https://access.redhat.com/security/cve/CVE-2019-20388 https://access.redhat.com/security/cve/CVE-2020-7595 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/ 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 iQIVAwUBX6I21tzjgjWX9erEAQjPWQ/9HUwbjkw/cY8D3Rd6eR/cQbQjwrpJdOHJ YIZQ3ZgphMhXXNMZmPfFTI2cwLkirN7uH73KtT3+LOsepnzhyhRghQgRUaLYFXgl OMUCjzevES36P3bY9N2rk6xvfU4pnpeWb94t6sEiJuWdCDIs52UY41ODOnGVJorw mxYe8rtP3FAAicPOG/OEWFiTZxH3inn2TbWixRHH1eG7ySvjbQfbfjA4e5zoY84K EizU1IVu9rJfgnwfknKDote31LjHzvbw5SsCyAHlMz6f4Z7UhHefOlVAyB6XHFjF rN5ADjtF1B5wjxtYSGmnfNxsrdtDyOC5T31EA2EC5qyQ6XBL9GUix8BPmK0fPXxI BXXNYmwSXsIaeAwq6d5LbSBNI5ntU6tDyZ7lvDNkEgI4sRxIBZ84IVeDbLcgOwJv OA/M0eg2o7uKiNF0DV4ZVHCVHeH5LoaBhrq/0B21FkM9JxRX8vEwhavkR9oVW331 yFlmYiZpOQkD6P0omCtwED4jmCg9hdRCfXCbUbYpmpWoK9Plp3hY/v2RfUEMROYV R+o8hCb1wbiyIPLVvsuVppM/rUUfuQ6sd9FwwsbjgdeCrx+++wCX/NwlzIPwtT4F Gnj1SaXE0/5Ilyb3Tqq1QYcLe7YfVk/0Iip9V+t4HPyWRVOFFYexqjXZCNt2L8JS NiiH7H8gSOo= =Ba8C - -----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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