-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel-rt security and bug fix update Advisory ID: RHSA-2020:5441-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:5441 Issue date: 2020-12-15 CVE Names: CVE-2019-18282 CVE-2020-10769 CVE-2020-14314 CVE-2020-14385 CVE-2020-24394 CVE-2020-25212 CVE-2020-25643 ===================================================================== 1. Summary: An update for kernel-rt is now available for Red Hat Enterprise Linux 7. 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 for Real Time (v. 7) - noarch, x86_64 Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64 3. Description: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: metadata validator in XFS may cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt (CVE-2020-14385) * kernel: The flow_dissector feature allows device tracking (CVE-2019-18282) * kernel: Buffer over-read in crypto_authenc_extractkeys() when a payload longer than 4 bytes is not aligned. (CVE-2020-10769) * kernel: buffer uses out of index in ext3/4 filesystem (CVE-2020-14314) * kernel: umask not applied on filesystem without ACL support (CVE-2020-24394) * kernel: TOCTOU mismatch in the NFS client code (CVE-2020-25212) * kernel: improper input validation in ppp_cp_parse_cr function leads to memory corruption and read overflow (CVE-2020-25643) 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): * kernel-rt: update to the latest RHEL7.9.z2 source tree (BZ#1873318) * deadlock between handle_mm_fault() and ptep_clear_flush() (BZ#1888872) 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/): 1708775 - CVE-2020-10769 kernel: Buffer over-read in crypto_authenc_extractkeys() when a payload longer than 4 bytes is not aligned. 1796360 - CVE-2019-18282 kernel: The flow_dissector feature allows device tracking 1853922 - CVE-2020-14314 kernel: buffer uses out of index in ext3/4 filesystem 1869141 - CVE-2020-24394 kernel: umask not applied on filesystem without ACL support 1874800 - CVE-2020-14385 kernel: metadata validator in XFS may cause an inode with a valid, user-creatable extended attribute to be flagged as corrupt 1877575 - CVE-2020-25212 kernel: TOCTOU mismatch in the NFS client code 1879981 - CVE-2020-25643 kernel: improper input validation in ppp_cp_parse_cr function leads to memory corruption and read overflow 1888872 - deadlock between handle_mm_fault() and ptep_clear_flush() [rhel-7.9.z] 6. Package List: Red Hat Enterprise Linux for Real Time for NFV (v. 7): Source: kernel-rt-3.10.0-1160.11.1.rt56.1145.el7.src.rpm noarch: kernel-rt-doc-3.10.0-1160.11.1.rt56.1145.el7.noarch.rpm x86_64: kernel-rt-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debug-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debug-kvm-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debug-kvm-debuginfo-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-devel-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-kvm-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-kvm-debuginfo-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-trace-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-trace-kvm-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-trace-kvm-debuginfo-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm Red Hat Enterprise Linux for Real Time (v. 7): Source: kernel-rt-3.10.0-1160.11.1.rt56.1145.el7.src.rpm noarch: kernel-rt-doc-3.10.0-1160.11.1.rt56.1145.el7.noarch.rpm x86_64: kernel-rt-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debug-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debug-debuginfo-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debug-devel-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debuginfo-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-debuginfo-common-x86_64-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-devel-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-trace-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-trace-debuginfo-3.10.0-1160.11.1.rt56.1145.el7.x86_64.rpm kernel-rt-trace-devel-3.10.0-1160.11.1.rt56.1145.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-2019-18282 https://access.redhat.com/security/cve/CVE-2020-10769 https://access.redhat.com/security/cve/CVE-2020-14314 https://access.redhat.com/security/cve/CVE-2020-14385 https://access.redhat.com/security/cve/CVE-2020-24394 https://access.redhat.com/security/cve/CVE-2020-25212 https://access.redhat.com/security/cve/CVE-2020-25643 https://access.redhat.com/security/updates/classification/#important 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 iQIVAwUBX9idddzjgjWX9erEAQg+Eg/7B0RTLzDgmCq9m+RZlOU1dCdsdouXcF31 vg4A0KdPEEP5GeE+nWL5H8e0JbZ5P5+vu/kbJR/IxVRSBE6K98MKPVVSBJi+d1mr ZCe4mqxANBHHmGiCmtjBZcI26F0iSpON3EfPCfRwuHoI/3EKc6UTyjNxXefGFs1S YeOckXFiXPw+2b0SvxBT9BLmRk5qvVGvwl9CwKkdXwcQeTIxSOOWb3hIg0+fFJFa SoLS27nWfooANuKXfiTlv8A8vNWygfA+ZhZQjcSTMSarur8UxO/9pqG9UmFBAHql vcD5Cn+3sITQfYuHFlAjxCypA2XUDiQtjWxNBzpkAfE4Jn/pMG/IpWzFydPnvyai 9w90rUP8cAGndwOKZ+HuK8j7J8pQprrH4zlonkaRA/b8+l2HeLK1HJLat27FCCZg PZFpRfmRGxi/d7tobLZmt15DzelhzELWlxznt3OBfRXdiVCR0Uh7UeOjyBoyffEi ifcj0jdiAW2MbBhAlPiqvsmjVVBIbYXSygPL+6yUT1lk1OyHemZIaeF38vYbHMJA 864+T3HTYp8cQeaOqUYXX4Y00OYj+vTKEVmu9JwK7a2NI01xLo2731I/95ZxLlMp x8iFWGMqpsYmFv4leAIQf0dk73vT/Q/66AumgvNJuD2yObdEa7oD5/Q1JL4QFCOf LsYVHZYDVI8= =KzD/ -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce