CVE-2022-4744

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the registernetdevice function fails NETDEVREGISTER notifier. This flaw allows a local user to crash or potentially escalate their privileges on the system...

CVE-2023-1076

A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAPNETADMIN, it may not always be the case, e.g., a non-root user only having that...

DEBIAN-CVE-2023-1076

A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAPNETADMIN, it may not always be the case, e.g., a non-root user only having that...

CVE-2023-1076

A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAPNETADMIN, it may not always be the case, e.g., a non-root user only having that...

Type confusion

A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAPNETADMIN, it may not always be the case, e.g., a non-root user only having that...

UBUNTU-CVE-2023-1076

A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAPNETADMIN, it may not always be the case, e.g., a non-root user only having that...

CVE-2023-1076

A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAPNETADMIN, it may not always be the case, e.g., a non-root user only having that...

kernel: tun: avoid double free in tun_free_netdev

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the registernetdevice function fails NETDEVREGISTER notifier. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: tun: avoid double free in tun_free_netdev

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the registernetdevice function fails NETDEVREGISTER notifier. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: tun: avoid double free in tun_free_netdev

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the registernetdevice function fails NETDEVREGISTER notifier. This flaw allows a local user to crash or potentially escalate their privileges on the system...

CVE-2023-1076

A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAPNETADMIN, it may not always be the case, e.g., a non-root user only having that...

CVE-2023-1076

CVE-2023-1076 describes a Linux kernel flaw in tun/tap initialisation where the socket uid is hardcoded to 0 due to a type confusion. The result can cause tun/tap sockets to be treated as if they have root privileges when filtering/routing decisions are made, potentially bypassing network filters...

CVE-2023-1076

A flaw was found in the Linux Kernel. The tun/tap sockets have their socket UID hardcoded to 0 due to a type confusion in their initialization function. While it will be often correct, as tuntap devices require CAPNETADMIN, it may not always be the case, e.g., a non-root user only having that...

RHEL 9 : kernel (RHSA-2023:1470)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1470 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: tun: avoid double free in...

RHEL 9 : kernel-rt (RHSA-2023:1469)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:1469 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

RHEL 9 : kernel (RHSA-2023:1468)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1468 advisory. The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fixes: kernel: tun: avoid double free in tunfreenetdev...

RHEL 9 : kernel-rt (RHSA-2023:1467)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1467 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Securi...

RHEL 9 : kpatch-patch (RHSA-2023:1466)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1466 advisory. This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel. Security Fixe...

CVE-2022-4744

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the registernetdevice function fails NETDEVREGISTER notifier. This flaw allows a local user to crash or potentially escalate their privileges on the system. Mitigation To...

Important: kernel

Issue Overview: A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM L0 advertising eIBRS support to L1. An attacker at L...