ID

VAR-202012-1546

CVE

CVE-2020-29661

TITLE

Debian Security Advisory 4843-1

DESCRIPTION

A locking issue was discovered in the tty subsystem of the Linux kernel through 5.9.13. drivers/tty/tty_jobctrl.c allows a use-after-free attack against TIOCSPGRP, aka CID-54ffccbf053b. CVE-2020-27825 Adam 'pi3' Zabrocki reported a use-after-free flaw in the ftrace ring buffer resizing logic due to a race condition, which could result in denial of service or information leak. CVE-2020-27830 Shisong Qin reported a NULL pointer dereference flaw in the Speakup screen reader core driver. CVE-2020-28374 David Disseldorp discovered that the LIO SCSI target implementation performed insufficient checking in certain XCOPY requests. An attacker with access to a LUN and knowledge of Unit Serial Number assignments can take advantage of this flaw to read and write to any LIO backstore, regardless of the SCSI transport settings. CVE-2020-29568 (XSA-349) Michael Kurth and Pawel Wieczorkiewicz reported that frontends can trigger OOM in backends by updating a watched path. A misbehaving guest can trigger a dom0 crash by continuously connecting / disconnecting a block frontend. CVE-2020-36158 A buffer overflow flaw was discovered in the mwifiex WiFi driver which could result in denial of service or the execution of arbitrary code via a long SSID value. CVE-2021-3347 It was discovered that PI futexes have a kernel stack use-after-free during fault handling. A privileged user (with root or CAP_NET_ADMIN) can take advantage of this flaw to cause a kernel panic when inserting iptables rules. For the stable distribution (buster), these problems have been fixed in version 4.19.171-2. For the detailed security status of linux please refer to its security tracker page at: https://security-tracker.debian.org/tracker/linux Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAmAXj9pfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0Tf5Q//RdQojeX7VtJ61PsVXRszZh9DJ3PUo64NheFU+QWUYO7F6NUD3fMxiS9K I8Sgfsm28x7RBambjW6TZYseJhQd9aSvaANnPdUj/eZ9P3xBhXFM8wzISosUWgfO 2IIV40oOVj943+BzfIQiq1mgQtwLjh3pNTZAEpjnzD96Tc9tXGyW9/3iGkUHIQjv gUTSvoLIUAI4XfNNUjnok+6kPDyEEIdiwJaGDG+UPZ6HNL/hrG3A4klQc+X7KK5K NCOzl4Wl5pZN7u2Ietn3sFMsNJkMrsfLlVyj8J9PgNwbFQh/+RuvzFcONlQ8iaD9 kx42gkLwjl+hM2UeCpvQndzwqXKPKc6CjFemDj7KWzVA+KkVBRTXCGb9K9CasZOZ 0e/cu+5rjYGubIE3e/jo3Gmhp/fm9fXHESbruxuP+gjdbKcyrGrokNucjRvp6FPP rCX+e7OjsZwWGBIcAw+gDAZkDO7PFEoRtlByF2LmxxNvTufZQZHX8NwVyABCdpZi VQLLeQNXN1pJ4d1NPWgTlKfEmH0sGVQRHCliTkBZmIjvo+y1JClUDBAlWOS4YYQL 4Z4oe1qtOX9z+NkqDqcbgfWw69Q2PipNN3TR5YcBXvOtVhvL+/WFGiooJDqxkdCD j3wO/r/1gut/bK/OJnjmOB9J5OXP+cHxYtrhPqXFy2Hzkgj1CRU= =u23W -----END PGP SIGNATURE----- . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: kernel security and bug fix update Advisory ID: RHSA-2021:0856-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:0856 Issue date: 2021-03-16 CVE Names: CVE-2019-19532 CVE-2020-0427 CVE-2020-7053 CVE-2020-14351 CVE-2020-25211 CVE-2020-25645 CVE-2020-25656 CVE-2020-25705 CVE-2020-28374 CVE-2020-29661 CVE-2021-20265 ===================================================================== 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 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 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: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c (CVE-2020-25211) * kernel: SCSI target (LIO) write to any block on ILO backstore (CVE-2020-28374) * kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661) * kernel: malicious USB devices can lead to multiple out-of-bounds write (CVE-2019-19532) * kernel: out-of-bounds reads in pinctrl subsystem. (CVE-2020-0427) * kernel: use-after-free in i915_ppgtt_close in drivers/gpu/drm/i915/i915_gem_gtt.c (CVE-2020-7053) * kernel: performance counters race condition use-after-free (CVE-2020-14351) * kernel: Geneve/IPsec traffic may be unencrypted between two Geneve endpoints (CVE-2020-25645) * kernel: use-after-free in read in vt_do_kdgkb_ioctl (CVE-2020-25656) * kernel: ICMP rate limiting can be used for DNS poisoning attack (CVE-2020-25705) * kernel: increase slab leak leads to DoS (CVE-2021-20265) 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): * BUG: scheduling while atomic: memory allocation under spinlock in scsi_register_device_handler() (BZ#1619147) * WARNING in __iscsit_free_cmd during recovery Abort (BZ#1784540) * lpfc does not issue adisc to fcp-2 devices, does not respond to nvme targer that send an adisc. (BZ#1875961) * Panic in semctl_nolock.constprop.15+0x25b (BZ#1877264) * [RHEL 7.7][md]Crash due to invalid pool workqueue pointer, work queue race (BZ#1889372) * Guest crash on intel CPU with -cpu host,-spec-ctrl,+ibpb (BZ#1890669) * RHEL7.9 - kernel/uv: handle length extension properly (BZ#1899172) * Commit b144f013fc16a06d7a4b9a4be668a3583fafeda2 'i40e: don't report link up for a VF who hasn't enabled queues' introducing issues with VM using DPDK (BZ#1901064) * writing to /sys/devices/(...)/net/eno49/queues/tx-16/xps_cpus triggers kernel panic (BZ#1903819) * [Hyper-V][RHEL-7.9]video: hyperv_fb: Fix the cache type when mapping the VRAM Edit (BZ#1908896) * kvm-rhel7.9 [AMD] - system crash observed while powering on virtual machine with attached VF interfaces. (BZ#1909036) * kernel: nvme nvme7: Connect command failed, error wo/DNR bit: 2 (BZ#1910817) * dm-mirror crashes from assuming underlying storage will have a non-NULL merge_bvec_fn (BZ#1916407) * watchdog: use nmi registers snapshot in hardlockup handler (BZ#1916589) * [DELL EMC 7.9 BUG] - Intel E810 NIC interfaces are not functional in RHEL 7.9 on system with AMD Rome CPUs (BZ#1918273) * [DELL EMC BUG] RHEL system log shows AMD-Vi error when system connected with Gen 4 NVMe drives. (BZ#1921187) 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/): 1781821 - CVE-2019-19532 kernel: malicious USB devices can lead to multiple out-of-bounds write 1795624 - CVE-2020-7053 kernel: use-after-free in i915_ppgtt_close in drivers/gpu/drm/i915/i915_gem_gtt.c 1862849 - CVE-2020-14351 kernel: performance counters race condition use-after-free 1877571 - CVE-2020-25211 kernel: Local buffer overflow in ctnetlink_parse_tuple_filter in net/netfilter/nf_conntrack_netlink.c 1883988 - CVE-2020-25645 kernel: Geneve/IPsec traffic may be unencrypted between two Geneve endpoints 1888726 - CVE-2020-25656 kernel: use-after-free in read in vt_do_kdgkb_ioctl 1894579 - CVE-2020-25705 kernel: ICMP rate limiting can be used for DNS poisoning attack 1899804 - CVE-2020-28374 kernel: SCSI target (LIO) write to any block on ILO backstore 1901064 - Commit b144f013fc16a06d7a4b9a4be668a3583fafeda2 'i40e: don't report link up for a VF who hasn't enabled queues' introducing issues with VM using DPDK 1906525 - CVE-2020-29661 kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free 1908827 - CVE-2021-20265 kernel: increase slab leak leads to DoS 1916589 - watchdog: use nmi registers snapshot in hardlockup handler 1919893 - CVE-2020-0427 kernel: out-of-bounds reads in pinctrl subsystem. 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: kernel-3.10.0-1160.21.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.21.1.el7.noarch.rpm kernel-doc-3.10.0-1160.21.1.el7.noarch.rpm x86_64: bpftool-3.10.0-1160.21.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.21.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.21.1.el7.x86_64.rpm perf-3.10.0-1160.21.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.21.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: kernel-3.10.0-1160.21.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.21.1.el7.noarch.rpm kernel-doc-3.10.0-1160.21.1.el7.noarch.rpm x86_64: bpftool-3.10.0-1160.21.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.21.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.21.1.el7.x86_64.rpm perf-3.10.0-1160.21.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.21.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: kernel-3.10.0-1160.21.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.21.1.el7.noarch.rpm kernel-doc-3.10.0-1160.21.1.el7.noarch.rpm ppc64: bpftool-3.10.0-1160.21.1.el7.ppc64.rpm bpftool-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm kernel-3.10.0-1160.21.1.el7.ppc64.rpm kernel-bootwrapper-3.10.0-1160.21.1.el7.ppc64.rpm kernel-debug-3.10.0-1160.21.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm kernel-debug-devel-3.10.0-1160.21.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1160.21.1.el7.ppc64.rpm kernel-devel-3.10.0-1160.21.1.el7.ppc64.rpm kernel-headers-3.10.0-1160.21.1.el7.ppc64.rpm kernel-tools-3.10.0-1160.21.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm kernel-tools-libs-3.10.0-1160.21.1.el7.ppc64.rpm perf-3.10.0-1160.21.1.el7.ppc64.rpm perf-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm python-perf-3.10.0-1160.21.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm ppc64le: bpftool-3.10.0-1160.21.1.el7.ppc64le.rpm bpftool-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-debug-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-devel-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-headers-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-tools-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-tools-libs-3.10.0-1160.21.1.el7.ppc64le.rpm perf-3.10.0-1160.21.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm python-perf-3.10.0-1160.21.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm s390x: bpftool-3.10.0-1160.21.1.el7.s390x.rpm bpftool-debuginfo-3.10.0-1160.21.1.el7.s390x.rpm kernel-3.10.0-1160.21.1.el7.s390x.rpm kernel-debug-3.10.0-1160.21.1.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.s390x.rpm kernel-debug-devel-3.10.0-1160.21.1.el7.s390x.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-1160.21.1.el7.s390x.rpm kernel-devel-3.10.0-1160.21.1.el7.s390x.rpm kernel-headers-3.10.0-1160.21.1.el7.s390x.rpm kernel-kdump-3.10.0-1160.21.1.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-1160.21.1.el7.s390x.rpm kernel-kdump-devel-3.10.0-1160.21.1.el7.s390x.rpm perf-3.10.0-1160.21.1.el7.s390x.rpm perf-debuginfo-3.10.0-1160.21.1.el7.s390x.rpm python-perf-3.10.0-1160.21.1.el7.s390x.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.s390x.rpm x86_64: bpftool-3.10.0-1160.21.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.21.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.21.1.el7.x86_64.rpm perf-3.10.0-1160.21.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm Red Hat Enterprise Linux Server Optional (v. 7): ppc64: bpftool-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-1160.21.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-1160.21.1.el7.ppc64.rpm perf-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.ppc64.rpm ppc64le: bpftool-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-debug-devel-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-1160.21.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.ppc64le.rpm x86_64: bpftool-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.21.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: kernel-3.10.0-1160.21.1.el7.src.rpm noarch: kernel-abi-whitelists-3.10.0-1160.21.1.el7.noarch.rpm kernel-doc-3.10.0-1160.21.1.el7.noarch.rpm x86_64: bpftool-3.10.0-1160.21.1.el7.x86_64.rpm bpftool-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.21.1.el7.x86_64.rpm kernel-devel-3.10.0-1160.21.1.el7.x86_64.rpm kernel-headers-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-1160.21.1.el7.x86_64.rpm perf-3.10.0-1160.21.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): x86_64: bpftool-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-1160.21.1.el7.x86_64.rpm perf-debuginfo-3.10.0-1160.21.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-1160.21.1.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-2019-19532 https://access.redhat.com/security/cve/CVE-2020-0427 https://access.redhat.com/security/cve/CVE-2020-7053 https://access.redhat.com/security/cve/CVE-2020-14351 https://access.redhat.com/security/cve/CVE-2020-25211 https://access.redhat.com/security/cve/CVE-2020-25645 https://access.redhat.com/security/cve/CVE-2020-25656 https://access.redhat.com/security/cve/CVE-2020-25705 https://access.redhat.com/security/cve/CVE-2020-28374 https://access.redhat.com/security/cve/CVE-2020-29661 https://access.redhat.com/security/cve/CVE-2021-20265 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYFC579zjgjWX9erEAQirxQ/9FKZDGdDIPfGpiOwbkmMoqySgNxALO02Q mSTFgrFP/TM4sHCZxPhyuL1rbgPTVnrPKE8M/fTA2EzRQiMZud+vSy4Dvf/WwBXQ 1dStOQIJNmVohUXCRed043xJtfZxyLtteFoxhVjlVU2Eia1+f7d9t42vWQAXhtVB SuEDmitq+9dvv9S48bDJkZtSUkBvZTY9zCtjx6neqypg0j4KKwrYgr+Ui+VF3yJk xRtkw5SVhRiSFv8lBGKSkbIX9AqaoTi25HQPZ1rxB43Rjw0dxNZzlwC5LAs4LQUD mCRHZQcDaKCWmDC+bCy3g5sfETvblJfKiBF61mEOo0nTnPwyOalEciwG0bBcyrnu Bupt4OsM71s/KSK5IUA0jv6vVUy4fLL/5IfAz63XAdZD/ZMQq+hlPiB0e+8QmNDP o7rKWut+BEgqHrgtur7SNPzUIWCj7OVIZUO+7+dEMLKkIUlRQJKYudm3JUbF1M/c 9pc6DyR2pxjvbW+0pIAln+nawSt3OvCIEnwCewJuX0R/Pie09hRp/sh2xfItDcHj mYcpCz75VnMeV4tMm2JXn9HXQOqkAx/LPYtBh8ZNui6G+O3NRyTSOv4ouiT12e5r UfBBYb2KtK6VViAy83150q+qkws8nPykpeRkBukYZELtGQjpiMBwlaVTq809GShi 65tXPtffy4k= =OXZI -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce . 7.7) - ppc64le, x86_64 3. Description: This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. 7) - aarch64, noarch, ppc64le 3. ========================================================================= Ubuntu Security Notice USN-4750-1 February 25, 2021 linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in the Linux kernel. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. A local attacker could use this to possibly cause a denial of service (system crash). (CVE-2020-27815) Shisong Qin and Bodong Zhao discovered that Speakup screen reader driver in the Linux kernel did not correctly handle setting line discipline in some situations. A local attacker could use this to cause a denial of service (system crash). A local attacker could use this to expose sensitive information (kernel memory). (CVE-2020-28588) Michael Kurth and Pawel Wieczorkiewicz discovered that the Xen event processing backend in the Linux kernel did not properly limit the number of events queued. An attacker in a guest VM could use this to cause a denial of service in the host OS. (CVE-2020-29568) Olivier Benjamin and Pawel Wieczorkiewicz discovered a race condition the Xen paravirt block backend in the Linux kernel, leading to a use-after-free vulnerability. An attacker in a guest VM could use this to cause a denial of service in the host OS. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. A local attacker with the CAP_NET_ADMIN capability could use this to cause a denial of service. (CVE-2021-20177) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS: linux-image-5.4.0-1010-gkeop 5.4.0-1010.11 linux-image-5.4.0-1029-raspi 5.4.0-1029.32 linux-image-5.4.0-1033-kvm 5.4.0-1033.34 linux-image-5.4.0-1037-gcp 5.4.0-1037.40 linux-image-5.4.0-1038-aws 5.4.0-1038.40 linux-image-5.4.0-1038-oracle 5.4.0-1038.41 linux-image-5.4.0-1040-azure 5.4.0-1040.42 linux-image-5.4.0-66-generic 5.4.0-66.74 linux-image-5.4.0-66-generic-lpae 5.4.0-66.74 linux-image-5.4.0-66-lowlatency 5.4.0-66.74 linux-image-aws 5.4.0.1038.39 linux-image-azure 5.4.0.1040.38 linux-image-gcp 5.4.0.1037.46 linux-image-generic 5.4.0.66.69 linux-image-generic-lpae 5.4.0.66.69 linux-image-gkeop 5.4.0.1010.13 linux-image-gkeop-5.4 5.4.0.1010.13 linux-image-kvm 5.4.0.1033.31 linux-image-lowlatency 5.4.0.66.69 linux-image-oem 5.4.0.66.69 linux-image-oem-osp1 5.4.0.66.69 linux-image-oracle 5.4.0.1038.35 linux-image-raspi 5.4.0.1029.64 linux-image-raspi2 5.4.0.1029.64 linux-image-virtual 5.4.0.66.69 Ubuntu 18.04 LTS: linux-image-5.4.0-1010-gkeop 5.4.0-1010.11~18.04.1 linux-image-5.4.0-1029-raspi 5.4.0-1029.32~18.04.1 linux-image-5.4.0-1036-gke 5.4.0-1036.38~18.04.1 linux-image-5.4.0-1037-gcp 5.4.0-1037.40~18.04.1 linux-image-5.4.0-1038-aws 5.4.0-1038.40~18.04.1 linux-image-5.4.0-1038-oracle 5.4.0-1038.41~18.04.1 linux-image-5.4.0-1040-azure 5.4.0-1040.42~18.04.1 linux-image-5.4.0-66-generic 5.4.0-66.74~18.04.2 linux-image-5.4.0-66-generic-lpae 5.4.0-66.74~18.04.2 linux-image-5.4.0-66-lowlatency 5.4.0-66.74~18.04.2 linux-image-aws 5.4.0.1038.22 linux-image-azure 5.4.0.1040.20 linux-image-gcp 5.4.0.1037.24 linux-image-generic-hwe-18.04 5.4.0.66.74~18.04.61 linux-image-generic-lpae-hwe-18.04 5.4.0.66.74~18.04.61 linux-image-gke-5.4 5.4.0.1036.38~18.04.4 linux-image-gkeop-5.4 5.4.0.1010.11~18.04.11 linux-image-lowlatency-hwe-18.04 5.4.0.66.74~18.04.61 linux-image-oem 5.4.0.66.74~18.04.61 linux-image-oem-osp1 5.4.0.66.74~18.04.61 linux-image-oracle 5.4.0.1038.41~18.04.21 linux-image-raspi-hwe-18.04 5.4.0.1029.32 linux-image-snapdragon-hwe-18.04 5.4.0.66.74~18.04.61 linux-image-virtual-hwe-18.04 5.4.0.66.74~18.04.61 After a standard system update you need to reboot your computer to make all the necessary changes. ATTENTION: Due to an unavoidable ABI change the kernel updates have been given a new version number, which requires you to recompile and reinstall all third party kernel modules you might have installed. Unless you manually uninstalled the standard kernel metapackages (e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual, linux-powerpc), a standard system upgrade will automatically perform this as well. 8.2) - aarch64, noarch, ppc64le, s390x, x86_64 3. (BZ#1919886) * [CKI kernel builds]: x86 binaries in non-x86 kernel rpms breaks systemtap (BZ#1929909) * rpmbuild cannot build the userspace RPMs in the kernel package when the kernel itself is not built (BZ#1929911) Enhancement(s): * [Mellanox 8.4 FEAT] mlx5: Add messages when VF-LAG fails to start (BZ#1892345) * Add kernel option to change cpumask for kernel threads (BZ#1915344) 4

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

local

TYPE

arbitrary

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

Red Hat

SOURCES

LAST UPDATE DATE

2025-08-11T20:17:52.028000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE