CVE-2021-33200: Out-of-bounds Write

kernel/bpf/verifier.c in the Linux kernel through 5.12.7 enforces incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corne...

Firejail: Privilege escalation

Background A SUID program that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces and seccomp-bpf. Description It was discovered that a flaw in Firejail’s OverlayFS code allowed restricted programs to escape sandbox. Impac...

SUSE-SU-2021:1733-1 Security update for the Linux Kernel (Live Patch 17 for SLE 12 SP5)

This update for the Linux Kernel 4.12.14-12266 fixes several issues. The following security issues were fixed: - CVE-2020-36322: Fixed an issue inside the FUSE filesystem implementation where fusedogetattr calls makebadinode in inappropriate situations, could have caused a system crash. NOTE: the...

SUSE-SU-2021:1724-1 Security update for the Linux Kernel (Live Patch 12 for SLE 15 SP1)

This update for the Linux Kernel 4.12.14-19745 fixes several issues. The following security issues were fixed: - CVE-2020-36322: Fixed an issue inside the FUSE filesystem implementation where fusedogetattr calls makebadinode in inappropriate situations, could have caused a system crash. NOTE: the...

SUSE-SU-2021:1715-1 Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP2)

This update for the Linux Kernel 5.3.18-22 fixes several issues. The following security issues were fixed: - CVE-2020-36322: Fixed an issue inside the FUSE filesystem implementation where fusedogetattr calls makebadinode in inappropriate situations, could have caused a system crash. NOTE: the...

container-tools:ol8 security, bug fix, and enhancement update

cockpit-podman 29-2 - fix gating test failure for cockpit-podman - Related: 1914884 29-1 - update to https://github.com/cockpit-project/cockpit-podman/releases/tag/29 - Related: 1883490 conmon 2:2.0.26-1 - update to https://github.com/containers/conmon/releases/tag/v2.0.26 - Related: 1883490...

PT-2021-4223 · Linux +7 · Linux Kernel +7

Name of the Vulnerable Software and Affected Versions: Linux kernel versions through 5.12.7 Description: The issue is related to a buffer overflow in the kernel/bpf/verifier.c component of the Linux kernel, allowing an attacker to perform out-of-bounds reads and writes in kernel memory. This can...

MGASA-2021-0214 Updated kernel packages fix security vulnerabilities

This kernel update is based on upstream 5.10.37 and fixes at least the following security issues: It was discovered that the iouring implementation of the Linux kernel did not properly enforce the MAXRWCOUNT limit in some situations. A local attacker could use this to cause a denial of service...

Updated kernel-linus packages fix security vulnerabilities

This kernel-linus update is based on upstream 5.10.37 and fixes at least the following security issues: It was discovered that the iouring implementation of the Linux kernel did not properly enforce the MAXRWCOUNT limit in some situations. A local attacker could use this to cause a denial of...

new module: container-tools:3.0

An update is available for fuse-overlayfs, container-selinux, udica, 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 base...

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...