ALSA-2021:1578 Important: kernel security, bug fix, and enhancement update

The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: Integer overflow in IntelR Graphics Drivers CVE-2020-12362 kernel: memory leak in sofsetgetlargectrldata function in sound/soc/sof/ipc.c CVE-2019-18811 kernel: use-after-free caused by a...

SUSE-SU-2021:1617-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP2 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-36312: Fixed an issue in virt/kvm/kvmmain.c that had a kvmiobusunregisterdev memory leak upon a kmalloc failure bnc1184509. - CVE-2021-29650: Fixed...

SUSE-SU-2021:1605-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP5 RT kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-36312: Fixed an issue within virt/kvm/kvmmain.c that had a kvmiobusunregisterdev memory leak upon a kmalloc failure bnc1184509. - CVE-2021-29650: Fix...

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads leading to disclosure of stack content via side-channel attacks aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also the BPF stack can contain uninitialized data that might represent sensitive information previously operated on by the kernel.

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SUSE-SU-2021:1596-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP4 LTSS kernel was updated to receive various security and bugfixes. The following security bugs were fixed: - CVE-2020-36312: Fixed an issue in virt/kvm/kvmmain.c that had a kvmiobusunregisterdev memory leak upon a kmalloc failure bnc1184509. - CVE-2021-29650: Fixed...

SUSE SLES15 Security Update : kernel (SUSE-SU-2021:1573-1)

The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes. The following security bugs were fixed : CVE-2020-36312: Fixed an issue in virt/kvm/kvmmain.c that had a kvmiobusunregisterdev memory leak upon a kmalloc failure bnc1184509. CVE-2021-29650: Fixed an issue...

SUSE SLES15 Security Update : kernel (SUSE-SU-2021:1571-1)

The SUSE Linux Enterprise 15 SP2 RT kernel was updated to receive various security and bugfixes. The following security bugs were fixed : CVE-2021-29650: Fixed an issue with the netfilter subsystem that allowed attackers to cause a denial of service panic because net/netfilter/xtables.c and...

Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-4949-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-4949-1 advisory. Ryota Shiga discovered that the eBPF implementation in the Linux kernel did not properly verify that a BPF program only reserved as much memory for a rin...

Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2021-9223)

The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2021-9223 advisory. - bpf, x86: Validate computation of branch displacements for x86-64 Piotr Krysiuk Orabug: 32759961 CVE-2021-29154 - ext4: handle error of...

CVE-2021-3489

A flaw out of bound memory write in the Linux kernel BPF subsystem was found in the way user writes to BPF ring buffer too fast, so larger buffer than available memory could be allocated. A local user could use this flaw to crash the system or possibly escalate their privileges on the system...

Unbreakable Enterprise kernel security update

4.14.35-2047.503.1 - bpf, x86: Validate computation of branch displacements for x86-64 Piotr Krysiuk Orabug: 32759961 CVE-2021-29154 - uek-rpm: Add Amazon Elastic Network Adapter module to nano rpm. Somasundaram Krishnasamy Orabug: 32781585 - ext4: handle error of ext4setupsystemzone on remount J...

Unbreakable Enterprise kernel-container security update

4.14.35-2047.503.1.el7 - bpf, x86: Validate computation of branch displacements for x86-64 Piotr Krysiuk Orabug: 32759961 CVE-2021-29154 - uek-rpm: Add Amazon Elastic Network Adapter module to nano rpm. Somasundaram Krishnasamy Orabug: 32781585 - ext4: handle error of ext4setupsystemzone on remou...

Linux kernel information disclosure vulnerability (CNVD-2021-34746)

Linux kernel is the kernel used by the Linux Foundation's open-source operating system Linux.KVM is one of the kernel-based virtual machines. A security vulnerability exists in the Linux kernel, which can be exploited by a local attacker to read memory fragments through the Linux kernel's BPF in...

CVE-2021-31829

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can...

AZL-6557 CVE-2021-31829 affecting package kernel for versions less than 5.10.78.1-1

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can...

Information disclosure

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can...

CVE-2021-31829

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can...

UBUNTU-CVE-2021-31829

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can...

CVE-2021-31829

kernel/bpf/verifier.c in the Linux kernel through 5.12.1 performs undesirable speculative loads, leading to disclosure of stack content via side-channel attacks, aka CID-801c6058d14a. The specific concern is not protecting the BPF stack area against speculative loads. Also, the BPF stack can...

CVE-2021-31829

CVE-2021-31829 affects the Linux kernel’s eBPF verifier (kernel/bpf/verifier.c) and describes speculative-load handling that could leak kernel memory via side-channels. The Initial document notes the flaw up to kernel 5.12.1 and references remediation through patched kernels; Connected documents ...