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RedHat: RHSA-2021-2724-01 Critical: Systemd Stack Allocation Crash

An update for systemd is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score,. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Important: systemd security update Advisory ID: RHSA-2021:2724-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2724 Issue date: 2021-07-20 CVE Names: CVE-2021-33910 ==================================================================== 1. Summary: An update for systemd is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. 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 BaseOS EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64 3. Description: The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes using Linux cgroups. In addition, it supports snapshotting and restoring of the system state, maintains mount and automount points, and implements an elaborate transactional dependency-based service control logic. It can also work as a drop-in replacement for sysvinit. Security Fix(es): * systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash (CVE-2021-33910) 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/): 1970887 - CVE-2021-33910 systemd: uncontrolled allocation on the stack in function unit_name_path_escape leads to crash 6. Package List: Red Hat Enterprise Linux BaseOS EUS (v.8.1): Source: systemd-239-18.el8_1.8.src.rpm aarch64: systemd-239-18.el8_1.8.aarch64.rpm systemd-container-239-18.el8_1.8.aarch64.rpm systemd-container-debuginfo-239-18.el8_1.8.aarch64.rpm systemd-debuginfo-239-18.el8_1.8.aarch64.rpm systemd-debugsource-239-18.el8_1.8.aarch64.rpm systemd-devel-239-18.el8_1.8.aarch64.rpm systemd-journal-remote-239-18.el8_1.8.aarch64.rpm systemd-journal-remote-debuginfo-239-18.el8_1.8.aarch64.rpm systemd-libs-239-18.el8_1.8.aarch64.rpm systemd-libs-debuginfo-239-18.el8_1.8.aarch64.rpm systemd-pam-239-18.el8_1.8.aarch64.rpm systemd-pam-debuginfo-239-18.el8_1.8.aarch64.rpm systemd-tests-239-18.el8_1.8.aarch64.rpm systemd-tests-debuginfo-239-18.el8_1.8.aarch64.rpm systemd-udev-239-18.el8_1.8.aarch64.rpm systemd-udev-debuginfo-239-18.el8_1.8.aarch64.rpm ppc64le: systemd-239-18.el8_1.8.ppc64le.rpm systemd-container-239-18.el8_1.8.ppc64le.rpm systemd-container-debuginfo-239-18.el8_1.8.ppc64le.rpm systemd-debuginfo-239-18.el8_1.8.ppc64le.rpm systemd-debugsource-239-18.el8_1.8.ppc64le.rpm systemd-devel-239-18.el8_1.8.ppc64le.rpm systemd-journal-remote-239-18.el8_1.8.ppc64le.rpm systemd-journal-remote-debuginfo-239-18.el8_1.8.ppc64le.rpm systemd-libs-239-18.el8_1.8.ppc64le.rpm systemd-libs-debuginfo-239-18.el8_1.8.ppc64le.rpm systemd-pam-239-18.el8_1.8.ppc64le.rpm systemd-pam-debuginfo-239-18.el8_1.8.ppc64le.rpm systemd-tests-239-18.el8_1.8.ppc64le.rpm systemd-tests-debuginfo-239-18.el8_1.8.ppc64le.rpm systemd-udev-239-18.el8_1.8.ppc64le.rpm systemd-udev-debuginfo-239-18.el8_1.8.ppc64le.rpm s390x: systemd-239-18.el8_1.8.s390x.rpm systemd-container-239-18.el8_1.8.s390x.rpm systemd-container-debuginfo-239-18.el8_1.8.s390x.rpm systemd-debuginfo-239-18.el8_1.8.s390x.rpm systemd-debugsource-239-18.el8_1.8.s390x.rpm systemd-devel-239-18.el8_1.8.s390x.rpm systemd-journal-remote-239-18.el8_1.8.s390x.rpm systemd-journal-remote-debuginfo-239-18.el8_1.8.s390x.rpm systemd-libs-239-18.el8_1.8.s390x.rpm systemd-libs-debuginfo-239-18.el8_1.8.s390x.rpm systemd-pam-239-18.el8_1.8.s390x.rpm systemd-pam-debuginfo-239-18.el8_1.8.s390x.rpm systemd-tests-239-18.el8_1.8.s390x.rpm systemd-tests-debuginfo-239-18.el8_1.8.s390x.rpm systemd-udev-239-18.el8_1.8.s390x.rpm systemd-udev-debuginfo-239-18.el8_1.8.s390x.rpm x86_64: systemd-239-18.el8_1.8.i686.rpm systemd-239-18.el8_1.8.x86_64.rpm systemd-container-239-18.el8_1.8.i686.rpm systemd-container-239-18.el8_1.8.x86_64.rpm systemd-container-debuginfo-239-18.el8_1.8.i686.rpm systemd-container-debuginfo-239-18.el8_1.8.x86_64.rpm systemd-debuginfo-239-18.el8_1.8.i686.rpm systemd-debuginfo-239-18.el8_1.8.x86_64.rpm systemd-debugsource-239-18.el8_1.8.i686.rpm systemd-debugsource-239-18.el8_1.8.x86_64.rpm systemd-devel-239-18.el8_1.8.i686.rpm systemd-devel-239-18.el8_1.8.x86_64.rpm systemd-journal-remote-239-18.el8_1.8.x86_64.rpm systemd-journal-remote-debuginfo-239-18.el8_1.8.i686.rpm systemd-journal-remote-debuginfo-239-18.el8_1.8.x86_64.rpm systemd-libs-239-18.el8_1.8.i686.rpm systemd-libs-239-18.el8_1.8.x86_64.rpm systemd-libs-debuginfo-239-18.el8_1.8.i686.rpm systemd-libs-debuginfo-239-18.el8_1.8.x86_64.rpm systemd-pam-239-18.el8_1.8.x86_64.rpm systemd-pam-debuginfo-239-18.el8_1.8.i686.rpm systemd-pam-debuginfo-239-18.el8_1.8.x86_64.rpm systemd-tests-239-18.el8_1.8.x86_64.rpm systemd-tests-debuginfo-239-18.el8_1.8.i686.rpm systemd-tests-debuginfo-239-18.el8_1.8.x86_64.rpm systemd-udev-239-18.el8_1.8.x86_64.rpm systemd-udev-debuginfo-239-18.el8_1.8.i686.rpm systemd-udev-debuginfo-239-18.el8_1.8.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-2021-33910 https://access.redhat.com/security/updates/classification#important https://access.redhat.com/security/vulnerabilities/RHSB-2021-006 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: GnuPGv1 iQIVAwUBYPdOa9zjgjWX9erEAQjPYw//fQSuqoDPCoFPEVrRLZC2ufEzME4EuR+Y tXMp2R8DkW2FnK8JR6OsnPgPQXh0u4hdrrWg5TrGoIfDVCd8Hc0KT8c9oCg7Ld+v TqYSB/thQDxrXDXD9bK53JsEHYYl/keJyu8bAH5wFjrW+iUtQhEY9UerArVlFbM2 UQn8utl8NxjOfXn54OYZdpPJVteXw8Lt7oWA5wCKdp7tp6SBQ5IGUdTIXfLc06co TBvzoHYDnXzLa3pXOIDx7oWKwIMoWjUUh6qmJQDEwjfV2mL1dBhDNRAsiHliN9sY HmvBuLIPUnIla7BkMV/XaLIErBH64mSNLNpinuQ8xFa1gXdIJn07qKeMAmiez0pa t7Vly1cJZ9PSLMRX7wkiR2mShGe+gqw18GHPsLoMaLWLiD522nn1vigwKzYii7aS UDq4eUtrO+HEgGI/wa04FvFO7yx7/Jm06Fe3jYeFj8eR+uQlblf+xuNj1inGfts8 OGRIZGZ3YR5Kl/E7xy8TJQ5nJIppBRrkjYgFZjEfZlenkx3GrGAo3nX75UM4VExq MvSK5WGyP6zkUFNg0Kfst7108szgulCdSEQe/380Z7iaGAmvlac4VCQ2JhpZU9kf 3vS3ckGMZnOv3mPTmcWHJEvK+0c8+nJCDdY3nSLz3pAfMHr8/keOjDZgecbw+98F oS6nUgUu9eM=wzmL -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. . An important security upgrade for the systemd component of Red Hat Enterprise Linux, addressing significant vulnerabilities and delivering effective remedies.. systemd Security Update, Red Hat Advisory, Enterprise Linux Security. . Severity: Important. LinuxSecurity.com Team

Jul 20, 2021 •Important Red Hat