-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: kernel security and bug fix update Advisory ID: RHSA-2020:5430-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:5430 Issue date: 2020-12-15 CVE Names: CVE-2017-18551 CVE-2019-9454 CVE-2019-19447 CVE-2019-20636 CVE-2020-12770 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7.4 Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP Solutions. 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 Server AUS (v. 7.4) - noarch, x86_64 Red Hat Enterprise Linux Server E4S (v. 7.4) - noarch, ppc64le, x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server Optional E4S (v. 7.4) - ppc64le, x86_64 Red Hat Enterprise Linux Server Optional TUS (v. 7.4) - x86_64 Red Hat Enterprise Linux Server TUS (v. 7.4) - noarch, x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c (CVE-2017-18551) * kernel: out of bounds write in i2c driver leads to local escalation of privilege (CVE-2019-9454) * kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447) * kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636) * kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770) 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. Bug Fix(es): * Secure boot key is not loaded with kernel-3.10.0-1159.el7: MODSIGN: Couldn't get UEFI MokListRT (BZ#1876951) * RHEL7.6: no-carrier configured interfaces causes soft lockups by mount.nfs and hang booting/shutdown process (BZ#1889770) * [Intel Bug]: hrtimer (rdmavt RNR timer) was lost sometimes (BZ#1892996) 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 system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1757368 - CVE-2017-18551 kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c 1781679 - CVE-2019-19447 kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c 1818818 - CVE-2019-9454 kernel: out of bounds write in i2c driver leads to local escalation of privilege 1824059 - CVE-2019-20636 kernel: out-of-bounds write via crafted keycode table 1834845 - CVE-2020-12770 kernel: sg_write function lacks an sg_remove_request call in a certain failure case 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.4): Source: kernel-3.10.0-693.81.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.81.1.el7.noarch.rpm kernel-doc-3.10.0-693.81.1.el7.noarch.rpm x86_64: kernel-3.10.0-693.81.1.el7.x86_64.rpm kernel-debug-3.10.0-693.81.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.81.1.el7.x86_64.rpm kernel-devel-3.10.0-693.81.1.el7.x86_64.rpm kernel-headers-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.81.1.el7.x86_64.rpm perf-3.10.0-693.81.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm python-perf-3.10.0-693.81.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm Red Hat Enterprise Linux Server E4S (v. 7.4): Source: kernel-3.10.0-693.81.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.81.1.el7.noarch.rpm kernel-doc-3.10.0-693.81.1.el7.noarch.rpm ppc64le: kernel-3.10.0-693.81.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-693.81.1.el7.ppc64le.rpm kernel-debug-3.10.0-693.81.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-693.81.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.81.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.81.1.el7.ppc64le.rpm kernel-devel-3.10.0-693.81.1.el7.ppc64le.rpm kernel-headers-3.10.0-693.81.1.el7.ppc64le.rpm kernel-tools-3.10.0-693.81.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.81.1.el7.ppc64le.rpm kernel-tools-libs-3.10.0-693.81.1.el7.ppc64le.rpm perf-3.10.0-693.81.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.81.1.el7.ppc64le.rpm python-perf-3.10.0-693.81.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.81.1.el7.ppc64le.rpm x86_64: kernel-3.10.0-693.81.1.el7.x86_64.rpm kernel-debug-3.10.0-693.81.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.81.1.el7.x86_64.rpm kernel-devel-3.10.0-693.81.1.el7.x86_64.rpm kernel-headers-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.81.1.el7.x86_64.rpm perf-3.10.0-693.81.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm python-perf-3.10.0-693.81.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm Red Hat Enterprise Linux Server TUS (v. 7.4): Source: kernel-3.10.0-693.81.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-693.81.1.el7.noarch.rpm kernel-doc-3.10.0-693.81.1.el7.noarch.rpm x86_64: kernel-3.10.0-693.81.1.el7.x86_64.rpm kernel-debug-3.10.0-693.81.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.81.1.el7.x86_64.rpm kernel-devel-3.10.0-693.81.1.el7.x86_64.rpm kernel-headers-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.81.1.el7.x86_64.rpm perf-3.10.0-693.81.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm python-perf-3.10.0-693.81.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 7.4): x86_64: kernel-debug-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.81.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional E4S (v. 7.4): ppc64le: kernel-debug-debuginfo-3.10.0-693.81.1.el7.ppc64le.rpm kernel-debug-devel-3.10.0-693.81.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.81.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.81.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.81.1.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-693.81.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.81.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.81.1.el7.ppc64le.rpm x86_64: kernel-debug-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.81.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional TUS (v. 7.4): x86_64: kernel-debug-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.81.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.81.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.81.1.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-2017-18551 https://access.redhat.com/security/cve/CVE-2019-9454 https://access.redhat.com/security/cve/CVE-2019-19447 https://access.redhat.com/security/cve/CVE-2019-20636 https://access.redhat.com/security/cve/CVE-2020-12770 https://access.redhat.com/security/updates/classification/#moderate 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBX9h7HNzjgjWX9erEAQg+vQ//XZ9WZYL+Rw8YmKoU72KSbrviHIdI+8zE DOS7CZhijg3HH8/lxmpek6O35Uzj+4x0ztRnroAxJnRNbom0SdXGqMvhEUQwoT4r Lv8Uncj+GNAzt5jVybmMyK4xImLFm/fO3z+JuomIKQbf872vgW7szAdsZwxtJNec v4T/9OHYyXxXCxUBNouFeNBTlOpc+W72imMsQTTwJP4lYFrkRv9ChCLekd2UNlG1 63u4lE3uCHkoS5v5HOlReO9rxeiaJCxXQZf2becp/MmaS3Z2E5k9vnb1BFSa2G8k 86SUrlY1ijDTF1welaaE0xCs5ATSxXoe6KgKmhCWnuiNTQ7reAKHLjF/wcUW3VqK rJhOlb5Qg94cJIHBh+cMavTA3oiCyhq9HMWQf8t8hnRX5tyfH5rFuOEo3AhQWmSU IEO48fZeDnO0RsTRZUJ9g2H1Fzz9GUMvIK4IaEnexMfkjnlUyocnQr1eHcm1olDU NehMY6d49GPGbkgoKFF0lHqBxR8HMpfnhmyKh3diZHGqns3lOkpFqjEZkF/rOKjQ wQImlUYs+afep99etb32KWgdhNLpKjjfEXph5hjCSUmaWSWejMrYNdgdpQehSYTz WTRxnaOaSQ0DU0ID1C5/ZpFRvrkni9Sto6KHfc4LMHtqcnussCIBXi5U2ucmhBi2 6S2CGcOaiP8= =k8gH -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce