-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: kernel security, bug fix, and enhancement update Advisory ID: RHSA-2020:1016-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:1016 Issue date: 2020-03-31 CVE Names: CVE-2015-9289 CVE-2017-17807 CVE-2018-7191 CVE-2018-19985 CVE-2018-20169 CVE-2019-3901 CVE-2019-9503 CVE-2019-10207 CVE-2019-10638 CVE-2019-10639 CVE-2019-11190 CVE-2019-11884 CVE-2019-12382 CVE-2019-13233 CVE-2019-13648 CVE-2019-14283 CVE-2019-15916 CVE-2019-16746 CVE-2019-18660 ===================================================================== 1. Summary: An update for kernel is now available for Red Hat Enterprise Linux 7. 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 Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64 3. Description: The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: out of bound read in DVB connexant driver. (CVE-2015-9289) * kernel: Missing permissions check for request_key() destination allows local attackers to add keys to keyring without Write permission (CVE-2017-17807) * kernel: denial of service via ioctl call in network tun handling (CVE-2018-7191) * kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS (CVE-2018-20169) * kernel: perf_event_open() and execve() race in setuid programs allows a data leak (CVE-2019-3901) * kernel: brcmfmac frame validation bypass (CVE-2019-9503) * kernel: null-pointer dereference in hci_uart_set_flow_control (CVE-2019-10207) * kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884) * kernel: unchecked kstrdup of fwstr in drm_load_edid_firmware leads to denial of service (CVE-2019-12382) * kernel: use-after-free in arch/x86/lib/insn-eval.c (CVE-2019-13233) * kernel: denial of service in arch/powerpc/kernel/signal_32.c and arch/powerpc/kernel/signal_64.c via sigreturn() system call (CVE-2019-13648) * kernel: integer overflow and OOB read in drivers/block/floppy.c (CVE-2019-14283) * kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916) * kernel: buffer-overflow hardening in WiFi beacon validation code. (CVE-2019-16746) * kernel: (powerpc) incomplete Spectre-RSB mitigation leads to information exposure (CVE-2019-18660) * kernel: oob memory read in hso_probe in drivers/net/usb/hso.c (CVE-2018-19985) * Kernel: net: weak IP ID generation leads to remote device tracking (CVE-2019-10638) * Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR (CVE-2019-10639) * kernel: ASLR bypass for setuid binaries due to late install_exec_creds() (CVE-2019-11190) 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 7.8 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 system must be rebooted for this update to take effect. 5. Bugs fixed (https://bugzilla.redhat.com/): 1507149 - [LLNL 7.5 Bug] slab leak causing a crash when using kmem control group 1528335 - CVE-2017-17807 kernel: Missing permissions check for request_key() destination allows local attackers to add keys to keyring without Write permission 1651706 - kernel: sd 0:0:9:0: timing out command, waited XXXs - which command timed out? 1660385 - CVE-2018-20169 kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS 1666106 - CVE-2018-19985 kernel: oob memory read in hso_probe in drivers/net/usb/hso.c 1694201 - cifs repeatedly tries to open a file using smb v1 on an smb2 mount after receiving STATUS_SHARING_VIOLATION 1699856 - CVE-2019-11190 kernel: ASLR bypass for setuid binaries due to late install_exec_creds() 1701245 - CVE-2019-3901 kernel: perf_event_open() and execve() race in setuid programs allows a data leak 1701842 - CVE-2019-9503 kernel: brcmfmac frame validation bypass 1702264 - panic handing smb2_reconnect due to a use after free 1709837 - CVE-2019-11884 kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command 1711520 - IPSet List - Size in Memory Wildly Inconsistent 1715554 - CVE-2019-12382 kernel: unchecked kstrdup of fwstr in drm_load_edid_firmware leads to denial of service 1716328 - CVE-2018-7191 kernel: denial of service via ioctl call in network tun handling 1727756 - CVE-2019-13233 kernel: use-after-free in arch/x86/lib/insn-eval.c 1729931 - CVE-2019-10638 Kernel: net: weak IP ID generation leads to remote device tracking 1729933 - CVE-2019-10639 Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR 1733347 - NFSv4.0 client sending a double CLOSE (leading to EIO application failure) 1733874 - CVE-2019-10207 kernel: null-pointer dereference in hci_uart_set_flow_control 1734243 - CVE-2019-14283 kernel: integer overflow and OOB read in drivers/block/floppy.c 1735630 - CVE-2019-13648 kernel: denial of service in arch/powerpc/kernel/signal_32.c and arch/powerpc/kernel/signal_64.c via sigreturn() system call 1735655 - CVE-2015-9289 kernel: out of bound read in DVB connexant driver. 1749390 - VFS: Busy inodes after unmount of loop0 when encountering duplicate directory inodes 1750577 - RHEL 7.7 long I/O stalls with bnx2fc from not masking off scope bits of retry delay value 1750813 - CVE-2019-15916 kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service 1757325 - perf top -p PID does not show anything 1757872 - crash in is_size_safe_to_change in 3.10.0-1062.el7 kernel as a result of another condition / race similar to earlier bug 1580165 1758001 - fix compat statfs64() returning EOVERFLOW for when _FILE_OFFSET_BITS=64 1760294 - kernel: seccomp: wrong return value for blocked syscalls on s390x 1760306 - CVE-2019-16746 kernel: buffer-overflow hardening in WiFi beacon validation code. 1770404 - CIFS client system hung with all cpus at 100% inside smb2_reconnect spinning on TCP_Server_Info.response_q.lock spinlock 1777825 - CVE-2019-18660 kernel: (powerpc) incomplete Spectre-RSB mitigation leads to information exposure 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: kernel-3.10.0-1127.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1127.el7.noarch.rpm kernel-doc-3.10.0-1127.el7.noarch.rpm x86_64: bpftool-3.10.0-1127.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-3.10.0-1127.el7.x86_64.rpm kernel-debug-3.10.0-1127.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debug-devel-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1127.el7.x86_64.rpm kernel-devel-3.10.0-1127.el7.x86_64.rpm kernel-headers-3.10.0-1127.el7.x86_64.rpm kernel-tools-3.10.0-1127.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-tools-libs-3.10.0-1127.el7.x86_64.rpm perf-3.10.0-1127.el7.x86_64.rpm perf-debuginfo-3.10.0-1127.el7.x86_64.rpm python-perf-3.10.0-1127.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1127.el7.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1127.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1127.el7.x86_64.rpm perf-debuginfo-3.10.0-1127.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1127.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: kernel-3.10.0-1127.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1127.el7.noarch.rpm kernel-doc-3.10.0-1127.el7.noarch.rpm x86_64: bpftool-3.10.0-1127.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-3.10.0-1127.el7.x86_64.rpm kernel-debug-3.10.0-1127.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debug-devel-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1127.el7.x86_64.rpm kernel-devel-3.10.0-1127.el7.x86_64.rpm kernel-headers-3.10.0-1127.el7.x86_64.rpm kernel-tools-3.10.0-1127.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-tools-libs-3.10.0-1127.el7.x86_64.rpm perf-3.10.0-1127.el7.x86_64.rpm perf-debuginfo-3.10.0-1127.el7.x86_64.rpm python-perf-3.10.0-1127.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1127.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1127.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1127.el7.x86_64.rpm perf-debuginfo-3.10.0-1127.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1127.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: kernel-3.10.0-1127.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1127.el7.noarch.rpm kernel-doc-3.10.0-1127.el7.noarch.rpm ppc64: bpftool-3.10.0-1127.el7.ppc64.rpm bpftool-debuginfo-3.10.0-1127.el7.ppc64.rpm kernel-3.10.0-1127.el7.ppc64.rpm kernel-bootwrapper-3.10.0-1127.el7.ppc64.rpm kernel-debug-3.10.0-1127.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1127.el7.ppc64.rpm kernel-debug-devel-3.10.0-1127.el7.ppc64.rpm kernel-debuginfo-3.10.0-1127.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1127.el7.ppc64.rpm kernel-devel-3.10.0-1127.el7.ppc64.rpm kernel-headers-3.10.0-1127.el7.ppc64.rpm kernel-tools-3.10.0-1127.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1127.el7.ppc64.rpm kernel-tools-libs-3.10.0-1127.el7.ppc64.rpm perf-3.10.0-1127.el7.ppc64.rpm perf-debuginfo-3.10.0-1127.el7.ppc64.rpm python-perf-3.10.0-1127.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1127.el7.ppc64.rpm ppc64le: bpftool-3.10.0-1127.el7.ppc64le.rpm bpftool-debuginfo-3.10.0-1127.el7.ppc64le.rpm kernel-3.10.0-1127.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-1127.el7.ppc64le.rpm kernel-debug-3.10.0-1127.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1127.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1127.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1127.el7.ppc64le.rpm kernel-devel-3.10.0-1127.el7.ppc64le.rpm kernel-headers-3.10.0-1127.el7.ppc64le.rpm kernel-tools-3.10.0-1127.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1127.el7.ppc64le.rpm kernel-tools-libs-3.10.0-1127.el7.ppc64le.rpm perf-3.10.0-1127.el7.ppc64le.rpm perf-debuginfo-3.10.0-1127.el7.ppc64le.rpm python-perf-3.10.0-1127.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1127.el7.ppc64le.rpm s390x: bpftool-3.10.0-1127.el7.s390x.rpm bpftool-debuginfo-3.10.0-1127.el7.s390x.rpm kernel-3.10.0-1127.el7.s390x.rpm kernel-debug-3.10.0-1127.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-1127.el7.s390x.rpm kernel-debug-devel-3.10.0-1127.el7.s390x.rpm kernel-debuginfo-3.10.0-1127.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-1127.el7.s390x.rpm kernel-devel-3.10.0-1127.el7.s390x.rpm kernel-headers-3.10.0-1127.el7.s390x.rpm kernel-kdump-3.10.0-1127.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-1127.el7.s390x.rpm kernel-kdump-devel-3.10.0-1127.el7.s390x.rpm perf-3.10.0-1127.el7.s390x.rpm perf-debuginfo-3.10.0-1127.el7.s390x.rpm python-perf-3.10.0-1127.el7.s390x.rpm python-perf-debuginfo-3.10.0-1127.el7.s390x.rpm x86_64: bpftool-3.10.0-1127.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-3.10.0-1127.el7.x86_64.rpm kernel-debug-3.10.0-1127.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debug-devel-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1127.el7.x86_64.rpm kernel-devel-3.10.0-1127.el7.x86_64.rpm kernel-headers-3.10.0-1127.el7.x86_64.rpm kernel-tools-3.10.0-1127.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-tools-libs-3.10.0-1127.el7.x86_64.rpm perf-3.10.0-1127.el7.x86_64.rpm perf-debuginfo-3.10.0-1127.el7.x86_64.rpm python-perf-3.10.0-1127.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1127.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: bpftool-debuginfo-3.10.0-1127.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1127.el7.ppc64.rpm kernel-debuginfo-3.10.0-1127.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1127.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1127.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-1127.el7.ppc64.rpm perf-debuginfo-3.10.0-1127.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1127.el7.ppc64.rpm ppc64le: bpftool-debuginfo-3.10.0-1127.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1127.el7.ppc64le.rpm kernel-debug-devel-3.10.0-1127.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1127.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1127.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1127.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-1127.el7.ppc64le.rpm perf-debuginfo-3.10.0-1127.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1127.el7.ppc64le.rpm x86_64: bpftool-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1127.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1127.el7.x86_64.rpm perf-debuginfo-3.10.0-1127.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1127.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: kernel-3.10.0-1127.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1127.el7.noarch.rpm kernel-doc-3.10.0-1127.el7.noarch.rpm x86_64: bpftool-3.10.0-1127.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-3.10.0-1127.el7.x86_64.rpm kernel-debug-3.10.0-1127.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debug-devel-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1127.el7.x86_64.rpm kernel-devel-3.10.0-1127.el7.x86_64.rpm kernel-headers-3.10.0-1127.el7.x86_64.rpm kernel-tools-3.10.0-1127.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-tools-libs-3.10.0-1127.el7.x86_64.rpm perf-3.10.0-1127.el7.x86_64.rpm perf-debuginfo-3.10.0-1127.el7.x86_64.rpm python-perf-3.10.0-1127.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1127.el7.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1127.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1127.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1127.el7.x86_64.rpm perf-debuginfo-3.10.0-1127.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1127.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-2015-9289 https://access.redhat.com/security/cve/CVE-2017-17807 https://access.redhat.com/security/cve/CVE-2018-7191 https://access.redhat.com/security/cve/CVE-2018-19985 https://access.redhat.com/security/cve/CVE-2018-20169 https://access.redhat.com/security/cve/CVE-2019-3901 https://access.redhat.com/security/cve/CVE-2019-9503 https://access.redhat.com/security/cve/CVE-2019-10207 https://access.redhat.com/security/cve/CVE-2019-10638 https://access.redhat.com/security/cve/CVE-2019-10639 https://access.redhat.com/security/cve/CVE-2019-11190 https://access.redhat.com/security/cve/CVE-2019-11884 https://access.redhat.com/security/cve/CVE-2019-12382 https://access.redhat.com/security/cve/CVE-2019-13233 https://access.redhat.com/security/cve/CVE-2019-13648 https://access.redhat.com/security/cve/CVE-2019-14283 https://access.redhat.com/security/cve/CVE-2019-15916 https://access.redhat.com/security/cve/CVE-2019-16746 https://access.redhat.com/security/cve/CVE-2019-18660 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.8_release_notes/index 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 iQIVAwUBXoObR9zjgjWX9erEAQi7Qw//e3Hr9+kQnJwAQMsa5uOCJP1Fpi9xNTL/ Sf9AWF7Bb5Aj3ezcMJvkJmbH4Jibmx8Gy3rNhYQVvbWMMkpG/INUBSGBJTa8jgWY ZOmWZzQwDYpTtIs3wUzTtW1vEb6EKCIfblM1h5bAicz3C+xLsH/uxn11RgHRedL2 g48F9MGacflUhUoSLyGrZ/ou7vV4trDARMQLRFTVmahzAyhGOgTf+gdGV9z2pq3o W+SNjJurYeIC5ykZYA7wpeIFTWmy+6Jz1D1juiFEp54w5hwICX3seOGl7WKNUJ/o UOZaSMQqw1oVLy1U80SF4NvoiHPrISM54nUou9HenMlK010WQiUFPygn6TIKCQnr odjGG9dB5+Odcu7pnovaHfa3H2XCoKLeaJmi8GVIS9whgzGWdyK5aDkNX54TO77+ 6BfX/syiRQj231yq2U2dbEjj8o00SR7grfv9Hd4vB8NJcJK3fzAa/7pdfoyx3D+w VmmjT4L/WvVr9yhYNJxt1x39WphRT/tZbE0qpnSYO8ucO1LMCv4HyCctCUzJGYtv bueIMC3AFFT1TcboqXKNnBbpcJq4C7tera3bjnVbmoAbxNRP7S3DGiQu9m5hCGCa fF/ovshBXQx8F9+tW3tstoYl9KDbkO8b+Y2FQwC2IWUWaFhOartLCztYkOvmnEQ4 DYqQyYGritc= =i5rX -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce