Stay Secure with the Latest Linux Advisories

security advisorybug fixRed Hat Enterprise Linux

Red Hat Enterprise Linux 8 RHSA-2021:1679-01 Low: Bash Bug Fix

An update for bash is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ==================================================================== Red Hat Security Advisory Synopsis: Low: bash security and bug fix update Advisory ID: RHSA-2021:1679-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:1679 Issue date: 2021-05-18 CVE Names: CVE-2019-18276 ==================================================================== 1. Summary: An update for bash is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Low. 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 (v. 8) - aarch64, ppc64le, s390x, x86_64 3. Description: The bash packages provide Bash (Bourne-again shell), which is the default shell for Red Hat Enterprise Linux. Security Fix(es): * bash: when effective UID is not equal to its real UID the saved UID is not dropped (CVE-2019-18276) 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/): 1778309 - CVE-2019-18276 bash: when effective UID is not equal to its real UID the saved UID is not dropped 1890888 - Took long time to return when bash -c 'exit 2 & wait $!' run in the big size LimitNPROC values 6. Package List: Red Hat Enterprise Linux BaseOS (v. 8): Source: bash-4.4.19-14.el8.src.rpm aarch64: bash-4.4.19-14.el8.aarch64.rpm bash-debuginfo-4.4.19-14.el8.aarch64.rpm bash-debugsource-4.4.19-14.el8.aarch64.rpm bash-doc-4.4.19-14.el8.aarch64.rpm ppc64le: bash-4.4.19-14.el8.ppc64le.rpm bash-debuginfo-4.4.19-14.el8.ppc64le.rpm bash-debugsource-4.4.19-14.el8.ppc64le.rpm bash-doc-4.4.19-14.el8.ppc64le.rpm s390x: bash-4.4.19-14.el8.s390x.rpm bash-debuginfo-4.4.19-14.el8.s390x.rpm bash-debugsource-4.4.19-14.el8.s390x.rpm bash-doc-4.4.19-14.el8.s390x.rpm x86_64: bash-4.4.19-14.el8.x86_64.rpm bash-debuginfo-4.4.19-14.el8.x86_64.rpm bash-debugsource-4.4.19-14.el8.x86_64.rpm bash-doc-4.4.19-14.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-2019-18276 https://access.redhat.com/security/updates/classification/#low 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: GnuPGv1 iQIVAwUBYKPzVtzjgjWX9erEAQgGtg/9GDL5eK+ibkGXGGQp+60QjSdZ8dv5vw0+ SrZpPMqHvxDT990OL+f1EWZFJ37R0Wegu82+t1WBPwJN+tTQixquYe3TxL7C7PYo aiya0myxZkufApuFnbfevl2s+zdkIxBAxGfz665KtfiEYYROTDM9OmrvoxDUue+4 Fylfa5cQBBE1TSku9ZIp3txEw5pxXg1vRoz/gGWZ1LZkeEnz/3MJLMCtLd4wYx39 +w6/7mDrIdTQsRS3623JwgOi+gK7+KiNOeQ7KBGdQt9qOuiHtj5FSneYAw8SUusf WZYxS25dbiT54sktLWRg4KkSgYuNYVdD18XEbU5JT77W9whx3zbkSb0/BwvkN7Zo tB87oBN0zQOWmmnEG/g7DdQCIVOA7oasfpLVpcTGOv7V4DxJNcPAqMBKIRAruITd 3uu25LLPtBQzZT3V1ZDFOWhe5q2rHsyM4Ol7QjU3B2kFgGifq9cuD9oY8QjMqYow l3wxDNTpxO70/YsGxfcobpb/dswoE1JEfYdDNkhXR1jf9ugD3FekqrLpTfbAbgJa xnWSBKcyjInEFkDplvnBJhWB513GuipNu9aFsrPsIQng/Wzov42KXXTcAWG203UO SewytY9zaAXZcWUfHkUtKyteM3bJFDxBDMX5bSz+VJ5ll09xCHA5xTjARpM1p1yw q1q/ZSxlXWs=oN1Z -----END PGP SIGNATURE----- -- RHSA-announce mailing list This email address is being protected from spambots. You need JavaScript enabled to view it. https://listman.redhat.com/mailman/listinfo/rhsa-announce . An update for Bash on Red Hat Enterprise Linux 8 resolves a minor severity concern, enhancing overall system integrity and performance.. Bash Update, Red Hat Advisory, Linux Security Fix, Bash Bug Resolution. . Severity: Low. LinuxSecurity.com Team

May 18, 2021 •Low Red Hat