In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8 there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without the CAP_SYS_ADMIN capability.

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container-tools:rhel8 security, bug fix, and enhancement 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...

CVE-2021-38166

In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without the CAPSYSADMIN capability...

CVE-2021-38166

CVE-2021-38166 affects the Linux kernel (bpf/hashtab.c) up to 5.13.8. An integer overflow can cause an out-of-bounds write when many elements occupy a single bucket, potentially enabling local denial-of-service or arbitrary-code execution. Exploitation is mitigated by CAP_SYS_ADMIN requirements; ...

Updated kernel packages fix security vulnerabilities

This kernel update is based on upstream 5.10.56 and fixes at least the following security issues: In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism...

Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update is based on upstream 5.10.56 and fixes at least the following security issues: In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection...

MGASA-2021-0398 Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update is based on upstream 5.10.56 and fixes at least the following security issues: In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection...

Amazon Linux 2 : kernel, --advisory ALAS2-2021-1696 (ALAS-2021-1696)

The version of kernel installed on the remote host is prior to 4.14.241-184.433. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1696 advisory. A flaw was found in the Linux kernel, where a BPF program can obtain sensitive information from kernel memory via ...

Important: kernel

Issue Overview: A flaw was found in the Linux kernel, where a BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack. This issue occurs when the protection mechanism neglects the possibility of uninitialized memory locations on the BPF...

GSD-2021-1001249 bpf: Fix tail_call_reachable rejection for interpreter when jit failed

bpf: Fix tailcallreachable rejection for interpreter when jit failed 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 v5.10.54 by commit...

UVI-2021-1001247 bpf, sockmap: Fix potential memory leak on unlikely error case

bpf, sockmap: Fix potential memory leak on unlikely error case 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 v5.10.54 by commit...

GSD-2021-1001189 powerpc/bpf: Fix detecting BPF atomic instructions

powerpc/bpf: Fix detecting BPF atomic instructions 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 v5.13.4 by commit...

UVI-2021-1001189 powerpc/bpf: Fix detecting BPF atomic instructions

powerpc/bpf: Fix detecting BPF atomic instructions 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 v5.13.4 by commit...

UVI-2021-1001158 bpf: Fix tail_call_reachable rejection for interpreter when jit failed

bpf: Fix tailcallreachable rejection for interpreter when jit failed 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 v5.13.6 by commit...

GSD-2021-1001158 bpf: Fix tail_call_reachable rejection for interpreter when jit failed

bpf: Fix tailcallreachable rejection for interpreter when jit failed 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 v5.13.6 by commit...

CVE-2021-34556

A flaw was found in the Linux kernel, where a BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack. This issue occurs when the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack. The highes...

CVE-2021-34556

In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack...

CVE-2021-34556

In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack...

CVE-2021-34556

In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack...

CVE-2021-34556

In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack...