Fedora 38 : openvswitch (2023-7da03dc2ae)

The remote Fedora 38 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-7da03dc2ae advisory. Update for 3.1.1 2185071, includes fixes for CVE-2023-1668 2186245 Tenable has extracted the preceding description block directly from the Fedora...

DEBIAN-CVE-2023-1998

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to...

Cross site scripting

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to...

CVE-2023-1998

CVE-2023-1998 affects the Linux kernel. Root cause: when using legacy IBRS, the IBRS bit is cleared on returning to userspace, disabling implicit STIBP and leaving some spectre-BTI protections ineffective; attackers on a local machine could exploit cross-thread branch target injection despite mit...

CVE-2023-1998

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to...

CVE-2023-1998 Spectre v2 SMT mitigations problem in Linux kernel

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to...

CVE-2023-1998 Spectre v2 SMT mitigations problem in Linux kernel

The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as well as by using seccomp. We had noticed that on VMs of at least one major cloud provider, the kernel still left the victim process exposed to...

OESA-2023-1234 openvswitch security update

Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic. Security Fixes: A flaw was found in openvswitch OVS. When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifyin...

Linux Kernel 安全漏洞

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in Linux Kernel version 6.2, which stems from a common IBRS being enabled that makes userspace processes vulnerable...

CVE-2023-2194

An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The userspace "data-block0" variable was not capped to a number between 0-255 and was used as the size of a memcpy, possibly writing beyond the end of dmabuffer. This flaw could allow a local privilege...

Linux Kernel 6.2 - Userspace Processes To Enable Mitigation

Exploit Title: Linux Kernel 6.2 - Userspace Processes To Enable Mitigation Exploit Author: nu11secur1ty CVE ID: CVE-2023-1998 Description Summary The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as...

CVE-2023-2194

An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The userspace "data-block0" variable was not capped to a number between 0-255 and was used as the size of a memcpy, possibly writing beyond the end of dmabuffer. This flaw could allow a local privilege...

Linux Kernel 6.2 - Userspace Processes To Enable Mitigation Exploit

Exploit Title: Linux Kernel 6.2 - Userspace Processes To Enable Mitigation Exploit Author: nu11secur1ty CVE ID: CVE-2023-1998 Description Summary The Linux kernel allows userspace processes to enable mitigations by calling prctl with PRSETSPECULATIONCTRL which disables the speculation feature as...

CVE-2023-2194

An out-of-bounds write vulnerability was found in the Linux kernel's SLIMpro I2C device driver. The userspace "data-block0" variable was not capped to a number between 0-255 and was used as the size of a memcpy, possibly writing beyond the end of dmabuffer. This flaw could allow a local privilege...

openvswitch: ip proto 0 triggers incorrect handling

A flaw was found in openvswitch OVS. When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results for both kernel and userspace datapath in installing a datapath flow matching all IP protocols nwproto is wildcarded...

openvswitch: ip proto 0 triggers incorrect handling

A flaw was found in openvswitch OVS. When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results for both kernel and userspace datapath in installing a datapath flow matching all IP protocols nwproto is wildcarded...

openvswitch: ip proto 0 triggers incorrect handling

A flaw was found in openvswitch OVS. When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results for both kernel and userspace datapath in installing a datapath flow matching all IP protocols nwproto is wildcarded...

openvswitch: ip proto 0 triggers incorrect handling

A flaw was found in openvswitch OVS. When processing an IP packet with protocol 0, OVS will install the datapath flow without the action modifying the IP header. This issue results for both kernel and userspace datapath in installing a datapath flow matching all IP protocols nwproto is wildcarded...

RHEL 9 : openvswitch3.1 (RHSA-2023:1770)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1770 advisory. Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic. Security Fixe...

RHEL 8 : openvswitch3.1 (RHSA-2023:1766)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:1766 advisory. Open vSwitch provides standard network bridging functions and support for the OpenFlow protocol for remote per-flow control of traffic. Security Fixe...