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ALSA-2021:0558 — Important: kernel security, bug fix, and enhancement update

Affected: AlmaLinux:8: kernel-tools-libs-devel

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)

* kernel: performance counters race condition use-after-free (CVE-2020-14351)

* kernel: ICMP rate limiting can be used for DNS poisoning attack (CVE-2020-25705)

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):

* Final fixes + drop alpha_support flag requirement for Tigerlake (BZ#1882620)

* OVS complains Invalid Argument on TCP packets going into conntrack (BZ#1892744)

* BUG: using smp_processor_id() in preemptible [00000000] code: handler106/3082 (BZ#1893281)

* Icelake performance - add intel_idle: Customize IceLake server support to AlmaLinux-8 (BZ#1897183)

* [mlx5] IPV6 TOS rewrite flows are not getting offloaded in HW (BZ#1897688)

* AlmaLinux 8.3 SAS - multipathd fails to re-establish paths during controller random reset (BZ#1900112)

* AlmaLinux8.3 Beta - AlmaLinux8.3 hangs on dbginfo.sh execution, crash dump generated (mm-) (BZ#1903019)

* Win10 guest automatic reboot after migration in Win10 and WSL2 on AMD hosts (BZ#1905084)

* block, dm: fix IO splitting for stacked devices (BZ#1905136)

* Failed to hotplug scsi-hd disks (BZ#1905214)

* PCI quirk needed to prevent GPU hang (BZ#1906516)

* AlmaLinux8.2 -…

bdu:2020-05539

certfr-2020-avi-750 — De multiples vulnérabilités ont été découvertes dans le noyaux linux de SUSE. Certaines d'entre elles permettent à un a…

certfr-2020-avi-750

cnvd-2021-40505

EUVD-2026-45713

fkie_cve-2020-25705

A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw allows an off-path remote attacker to effectively bypass source port UDP randomization. Software that relies on UDP source port randomization are indirectly affected as well on the Linux Based Products (RUGGEDCOM RM1224: All versions between v5.0 and v6.4, SCALANCE M-800: All versions between v5.0 and v6.4, SCALANCE S615: All versions between v5.0 and v6.4, SCALANCE SC-600: All versions prior to v2.1.3, SCALANCE W1750D: v8.3.0.1, v8.6.0, and v8.7.0, SIMATIC Cloud Connect 7: All versions, SIMATIC MV500 Family: All versions, SIMATIC NET CP 1243-1 (incl. SIPLUS variants): Versions 3.1.39 and later, SIMATIC NET CP 1243-7 LTE EU: Version

GHSA-33cf-w34p-g6pj

A flaw in the way reply ICMP packets are limited in the Linux kernel functionality was found that allows to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypassing source port UDP randomization. The highest threat from this vulnerability is to confidentiality and possibly integrity, because software that relies on UDP source port randomization are indirectly affected as well. Kernel versions before 5.10 may be vulnerable to this issue.

gsd-2020-25705

ICSA-21-131-03 — Siemens Linux-based Products (Update J)

A flaw in ICMP packets in the Linux kernel was found to allow to quickly scan open UDP ports. This flaw allows an off-path remote user to effectively bypass source port UDP randomization. Software that relies on UDP source port randomization are indirectly affected as well. Kernel versions before 5.10 may be vulnerable to this issue.

msrc_CVE-2020-25705 — A flaw in ICMP packets in the Linux kernel may allow an attacker to quickly scan open UDP ports. This flaw allows an of…

msrc_CVE-2020-25705

openSUSE-SU-2020:1906-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

RHSA-2021:0537 — Red Hat Security Advisory: kernel-rt security and bug fix update

kernel: performance counters race condition use-after-free kernel: ICMP rate limiting can be used for DNS poisoning attack kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free

SUSE-SU-2020:3273-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2020-25705

Affected: Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:16.04:LTS: linux, Ubuntu:16.04:LTS: linux-aws, Ubuntu:16.04:LTS: linux-aws-hwe, Ubuntu:16.04:LTS: linux-azure, Ubuntu:16.04:LTS: linux-gcp, Ubuntu:16.04:LTS: linux-hwe, Ubuntu:16.04:LTS: linux-kvm and 63 more

WID-SEC-W-2022-2392 — Linux Kernel: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungen

Ein entfernter, anonymer Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Sicherheitsvorkehrungen zu umgehen.