RHEL 8 : kernel-rt (RHSA-2021:4140)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:4140 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

kernel: setsockopt System Call Untrusted Pointer Dereference Information Disclosure

A flaw was found in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality...

The vulnerability of the isotp_setsockopt function in the net/can/isotp.c component of the Linux kernel, which relates to the use of memory after it is freed, allows a perpetrator to gain access to confidential data, compromise its integrity, and cause service failures.

The vulnerability of the isotpsetsockopt function in the net/can/isotp.c component of the Linux kernel is related to the use of memory after it is freed. Exploiting this vulnerability can allow an attacker to access confidential data, compromise its integrity, and cause service failures...

LSN-0081-1: Kernel Live Patch Security Notice

Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory.CVE-2021-3653 Maxim...

kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

A flaw was discovered in processing setsockopt IPTSOSETREPLACE or IP6TSOSETREPLACE for 32 bit processes on 64 bit systems. This flaw will allow local user to gain privileges or cause a DoS through user name space. This action is usually restricted to root-privileged users but can also be leverage...

kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

A flaw was discovered in processing setsockopt IPTSOSETREPLACE or IP6TSOSETREPLACE for 32 bit processes on 64 bit systems. This flaw will allow local user to gain privileges or cause a DoS through user name space. This action is usually restricted to root-privileged users but can also be leverage...

kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

A flaw was discovered in processing setsockopt IPTSOSETREPLACE or IP6TSOSETREPLACE for 32 bit processes on 64 bit systems. This flaw will allow local user to gain privileges or cause a DoS through user name space. This action is usually restricted to root-privileged users but can also be leverage...

kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

A flaw was discovered in processing setsockopt IPTSOSETREPLACE or IP6TSOSETREPLACE for 32 bit processes on 64 bit systems. This flaw will allow local user to gain privileges or cause a DoS through user name space. This action is usually restricted to root-privileged users but can also be leverage...

kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

A flaw was discovered in processing setsockopt IPTSOSETREPLACE or IP6TSOSETREPLACE for 32 bit processes on 64 bit systems. This flaw will allow local user to gain privileges or cause a DoS through user name space. This action is usually restricted to root-privileged users but can also be leverage...

kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

A flaw was discovered in processing setsockopt IPTSOSETREPLACE or IP6TSOSETREPLACE for 32 bit processes on 64 bit systems. This flaw will allow local user to gain privileges or cause a DoS through user name space. This action is usually restricted to root-privileged users but can also be leverage...

USN-5039-1 linux, linux-aws, linux-kvm, linux-lts-xenial vulnerability

Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt implementation. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code...

kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

A flaw was discovered in processing setsockopt IPTSOSETREPLACE or IP6TSOSETREPLACE for 32 bit processes on 64 bit systems. This flaw will allow local user to gain privileges or cause a DoS through user name space. This action is usually restricted to root-privileged users but can also be leverage...

kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c

A flaw was discovered in processing setsockopt IPTSOSETREPLACE or IP6TSOSETREPLACE for 32 bit processes on 64 bit systems. This flaw will allow local user to gain privileges or cause a DoS through user name space. This action is usually restricted to root-privileged users but can also be leverage...

[Security] Virtuozzo ReadyKernel patch 127.0 for Virtuozzo Hybrid Server 7.0, 7.5 and Virtuozzo Hybrid Infrastructure 3.5, 4.0, 4.5

The cumulative Virtuozzo ReadyKernel patch was updated with security and stability fixes. The patch applies to all supported kernels of Virtuozzo Hybrid Server 7 and Virtuozzo Hybrid Infrastructure. Vulnerability id: PSBM-128140 3.10.0-1062.4.2.vz7.116.7 to 3.10.0-1127.18.2.vz7.163.46 netfilter:...

CVE-2021-32606

In the Linux kernel 5.11 through 5.12.2, isotpsetsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. This does not affect earlier versions that lack CAN ISOTP SFBROADCAST support...

CVE-2021-32606

In the Linux kernel 5.11 through 5.12.2, isotpsetsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. This does not affect earlier versions that lack CAN ISOTP SFBROADCAST support...

UBUNTU-CVE-2021-32606

In the Linux kernel 5.11 through 5.12.2, isotpsetsockopt in net/can/isotp.c allows privilege escalation to root by leveraging a use-after-free. This does not affect earlier versions that lack CAN ISOTP SFBROADCAST support...

Linux kernel 资源管理错误漏洞

The Linux kernel is a computer operating system kernel written in C and assembly language, compliant with the POSIX standard, and distributed under the GNU General Public License. A post-release reuse vulnerability exists in isotpsetsockopt in net/can/isotp.c in Linux kernel versions 5.11 through...

FreeBSD : FreeBSD -- double free in accept_filter(9) socket configuration interface (f8e1e2a6-9791-11eb-b87a-901b0ef719ab)

An unprivileged process can configure an accept filter on a listening socket. This is done using the setsockopt2 system call. The process supplies the name of the accept filter which is to be attached to the socket, as well as a string containing filter-specific information. If the filter...

FreeBSD -- double free in accept_filter(9) socket configuration interface

Problem Description: An unprivileged process can configure an accept filter on a listening socket. This is done using the setsockopt2 system call. The process supplies the name of the accept filter which is to be attached to the socket, as well as a string containing filter-specific information. ...