CVE-2021-3847

An unauthorized access to the execution of the setuid file with capabilities flaw in the Linux kernel OverlayFS subsystem was found in the way user copying a file with capabilities from a nosuid mount into another mount. A local user could use this flaw to escalate their privileges on the system...

SUSE SLES15: cluster-md-kmp-rt / dlm-kmp-rt / gfs2-kmp-rt / kernel-devel-rt / etc (SUSE-SU-2021:3415-1)

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3415-1 advisory. The SUSE Linux Enterprise 15 SP3 kernel was updated. The following security bugs were fixed: - CVE-2020-3702: Fixed a bug which could be...

CVE-2021-20321

A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system. Mitigation Mitigation for this issue is either not available or the currently available options...

Important: kernel

Issue Overview: A flaw was found in the Linux kernel. When reusing a socket with an attached dccpshctxccid as a listener, the socket will be used after being released leading to denial of service DoS or a potential code execution. The highest threat from this vulnerability is to data...

The vulnerability of the overlayfs component in the Linux operating system’s kernel allows for insecure privilege management. This enables attackers to gain access to confidential data, compromise its integrity, and cause service failures.

The vulnerability of the overlayfs component in the Linux operating system’s kernel involves ignoring user name spaces when configuring file permissions in the underlying file system. Exploiting this vulnerability allows an attacker to gain access to confidential data, compromise its integrity, a...

Amazon Linux AMI : kernel (ALAS-2021-1539)

The version of kernel installed on the remote host is prior to 4.14.248-129.473. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2021-1539 advisory. A flaw was found in the Linux kernel. When reusing a socket with an attached dccpshctxccid as a listener, the socke...

Exploit for Privilege Context Switching Error in Canonical Ubuntu_Linux

CVE-2021-3493 Ubuntu OverlayFS Local Privesc Affected Vers...

Ubuntu 18.04 LTS : Linux kernel (Raspberry Pi) vulnerabilities (USN-5094-2)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5094-2 advisory. It was discovered that the KVM hypervisor implementation in the Linux kernel did not properly perform reference counting in some situations, leading to a...

SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2021:3207-1)

The remote SUSE Linux SLED15 / SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3207-1 advisory. The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes. The following security bugs were fixed: ...

PT-2021-7323 · Linux +9 · Linux Kernel Overlayfs Subsystem +9

Name of the Vulnerable Software and Affected Versions: Linux kernel OverlayFS subsystem affected versions not specified Description: A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific ways with OverlayFS. This issue coul...

container-tools:rhel8 bug fix 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...

SUSE SLES12: kernel-azure / kernel-azure-base / kernel-azure-devel / etc (SUSE-SU-2021:3192-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3192-1 advisory. The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security and bugfixes. The following security bugs wer...

SUSE SLES15: kernel-azure / kernel-azure-devel / kernel-devel-azure / etc (SUSE-SU-2021:3179-1)

The remote SUSE Linux SLES15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2021:3179-1 advisory. The SUSE Linux Enterprise 15 SP3 Azure kernel was updated to receive various security and bugfixes. The following security bugs were fixed: -...

Amazon Linux 2 : kernel (ALAS-2021-1704)

The version of kernel installed on the remote host is prior to 4.14.246-187.474. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2021-1704 advisory. A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing t...

Medium: kernel

Issue Overview: A flaw was found in the KVM's AMD code for supporting SVM nested virtualization. The flaw occurs when processing the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the "intctl" field, this issue could...

Exploit for Privilege Context Switching Error in Canonical Ubuntu_Linux

overlayFS CVE-2021-3493 OverlayFs OverlayFS es un módulo de...

CVE-2021-3732

A flaw was found in the Linux kernel's OverlayFS subsystem in the way the user mounts the TmpFS filesystem with OverlayFS. This flaw allows a local user to gain access to hidden files that should not be accessible...

CVE-2021-3732

A flaw was found in the Linux kernel’s OverlayFS subsystem in the way the user mounts the TmpFS filesystem with OverlayFS. This flaw allows a local user to gain access to hidden files that should not be accessible. Mitigation Mitigation for this issue is either not available or the currently...

VulnCheck KEV: CVE-2015-1328

The overlayfs implementation in the linux aka Linux kernel package before 3.19.0-21.21 in Ubuntu through 15.04 does not properly check permissions for file creation in the upper filesystem directory, which allows local users to obtain root access by leveraging a configuration in which overlayfs...

Privilege Escalation

linux-gkeop is vulnerable to privilege escalation. The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a...