CVE-2021-33624

In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted e.g., because of type confusion and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db...

The vulnerability of the BPF subsystem in Linux operating systems allows attackers to gain unauthorized access to protected information.

The vulnerability of the BPF subsystem in Linux operating systems is related to deficiencies in the authentication mechanism. Exploiting this vulnerability can allow an attacker to gain unauthorized access to protected information...

Linux Kernel Information Disclosure Vulnerability (CNVD-2021-60528)

Linux kernel is the kernel used by the Linux Foundation's open source operating system, Linux. Linux Kernel is vulnerable to information leakage, which can be exploited by attackers to obtain the contents of arbitrary kernel memory information by executing a specially crafted BPF program...

CVE-2021-33624

A flaw was found in the Linux kernel's BPF subsystem, where protection against speculative execution attacks Spectre mitigation can be bypassed. The highest threat from this vulnerability is to confidentiality. Mitigation The default Red Hat Enterprise Linux kernel setting prevents unprivileged...

SUSE SLES15 Security Update : kernel (Live Patch 13 for SLE 15 SP2) (SUSE-SU-2021:2027-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:2027-1 advisory. This update for the Linux Kernel 5.3.18-2464 fixes several issues. The following issues were fixed: - CVE-2021-33200: Enforcing incorrect limit...

SUSE-SU-2021:2057-1 Security update for the Linux Kernel (Live Patch 24 for SLE 15)

This update for the Linux Kernel 4.12.14-15072 fixes several issues. The following security issues were fixed: - CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory bsc1186484. ...

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2021-9306)

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9306 advisory. - sctp: delay autoasconf init until binding the first addr Xin Long Orabug: 32907967 CVE-2021-23133 CVE-2021-23133 - dm ioctl: fix out of bounds...

container-tools:3.0 security update

buildah 1.19.7-1.0.1 - Handling redirect from the docker registry Orabug: 29874238 Nikita Gerasimov 1.19.7-1 - update to the latest content of https://github.com/containers/buildah/tree/release-1.19 https://github.com/containers/buildah/commit/a2854ed - Resolves: 1935376 cockpit-podman 29-2 - fix...

container-tools:rhel8 security update

An update is available for fuse-overlayfs, container-selinux, udica, runc, toolbox, podman, conmon, skopeo, crun, libslirp, oci-seccomp-bpf-hook, slirp4netns, containernetworking-plugins, buildah, criu, cockpit-podman. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS...

kernel security and bug fix update

3.10.0-1160.31.1.OL7 - Update Oracle Linux certificates Ilya Okomin - Oracle Linux RHCK Module Signing Key was compiled into kernel [email protected] - Update x509.genkey Orabug: 24817676 - Conflict with shim-ia32 and shim-x64 vmmm after calling handleuserfault Phili...

kernel: Speculation on pointer arithmetic against bpf_context pointer

A flaw was found in the Linux kernels eBPF verification code. By default accessing the eBPF verifier is only accessible to privileged users with CAPSYSADMIN. A local user with the ability to insert eBPF instructions can use the eBPF verifier to abuse a spectre like flaw where they can infer all...

Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2021-1971)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SUSE SLES12 Security Update : kernel (Live Patch 38 for SLE 12 SP3) (SUSE-SU-2021:1870-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:1870-1 advisory. This update for the Linux Kernel 4.4.180-94141 fixes several issues. The following security issues were fixed: - CVE-2020-36322:...

SUSE SLES12 Security Update : kernel (Live Patch 36 for SLE 12 SP3) (SUSE-SU-2021:1865-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:1865-1 advisory. This update for the Linux Kernel 4.4.180-94135 fixes several issues. The following security issues were fixed: - Fix a kernel warni...

Security update for the Linux Kernel (important)

openSUSE Security Update: Security update for the Linux Kernel Announcement ID: openSUSE-SU-2021:0843-1 Rating: important References: 1087082 1133021 1152457 1152489 1155518 1156395 1164648 1177666 1178418 1179519 1179827 1179851 1182378 1182999 1183346 1183976 1184259 1185428 1185495 1185589...

EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2021-1971)

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - There is a flaw reported in drivers/gpu/drm/nouveau/nouveausgdma.c in nouveausgdmacreatettm in Nouveau DRM subsystem. The issue...

GSD-2021-1000165 bpf: Fix masking negation logic upon negative dst register

bpf: Fix masking negation logic upon negative dst register This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.35 by commit...

GSD-2021-1000127 bpf: Fix masking negation logic upon negative dst register

bpf: Fix masking negation logic upon negative dst register This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.11.19 by commit...

GSD-2021-1000185 bpf: Fix masking negation logic upon negative dst register

bpf: Fix masking negation logic upon negative dst register This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v4.19.190 by commit...

GSD-2021-1000089 bpf: Fix masking negation logic upon negative dst register

bpf: Fix masking negation logic upon negative dst register This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.12.2 by commit...