OESA-2023-1187 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: Intel microprocessor generations 6 to 8 are affected by a new Spectre variant that is able to bypass their retpoline mitigation in the kernel to leak arbitrary data. An attacker with unprivileged user access can hijack return...

Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-5984-1)

The remote Ubuntu 18.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5984-1 advisory. It was discovered that the System V IPC implementation in the Linux kernel did not properly handle large shared memory counts. A local attacker could use...

kernel: net: CPU soft lockup in TC mirred egress-to-ingress action

A flaw was found in the Linux kernel Traffic Control TC subsystem. Using a specific networking configuration redirecting egress packets to ingress using TC action "mirred" a local unprivileged user could trigger a CPU soft lockup ABBA deadlock when the transport protocol in use TCP or SCTP does a...

kernel: net: CPU soft lockup in TC mirred egress-to-ingress action

A flaw was found in the Linux kernel Traffic Control TC subsystem. Using a specific networking configuration redirecting egress packets to ingress using TC action "mirred" a local unprivileged user could trigger a CPU soft lockup ABBA deadlock when the transport protocol in use TCP or SCTP does a...

AlmaLinux 9 : kernel-rt (ALSA-2023:1469)

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2023:1469 advisory. - A flaw was found in the Linux kernel Traffic Control TC subsystem. Using a specific networking configuration redirecting egress packets to ingress using...

Linux kernel resource management error vulnerability (CNVD-2023-34470)

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a security issue in the traffic control index filter tcindex, where a call to tcfextsexec while using a...

UAF in Linux kernel's tcindex (traffic control index filter) implementation

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CVE-2023-1281

Use After Free vulnerability in Linux kernel traffic control index filter tcindex allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcfextsexec' is called with the destroyed tcfext. A local attacker user can u...

Design/Logic Flaw

Use After Free vulnerability in Linux kernel traffic control index filter tcindex allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcfextsexec' is called with the destroyed tcfext. A local attacker user can u...

UBUNTU-CVE-2023-1281

Use After Free vulnerability in Linux kernel traffic control index filter tcindex allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcfextsexec' is called with the destroyed tcfext. A local attacker user can u...

CVE-2023-1281

Use After Free vulnerability in Linux kernel traffic control index filter tcindex allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcfextsexec' is called with the destroyed tcfext. A local attacker user can u...

CVE-2023-1281 UAF in Linux kernel's tcindex (traffic control index filter) implementation

Use After Free vulnerability in Linux kernel traffic control index filter tcindex allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcfextsexec' is called with the destroyed tcfext. A local attacker user can u...

CVE-2023-1281 UAF in Linux kernel's tcindex (traffic control index filter) implementation

Use After Free vulnerability in Linux kernel traffic control index filter tcindex allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcfextsexec' is called with the destroyed tcfext. A local attacker user can u...

CVE-2023-1281

Use After Free vulnerability in Linux kernel traffic control index filter tcindex allows Privilege Escalation. The imperfect hash area can be updated while packets are traversing, which will cause a use-after-free when 'tcfextsexec' is called with the destroyed tcfext. A local attacker user can u...

Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2023-015 (ALASKERNEL-5.15-2023-015)

The version of kernel installed on the remote host is prior to 5.15.102-61.139. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2023-015 advisory. A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. ...

Linux kernel 资源管理错误漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a security issue in the traffic control index filter tcindex, where a call to tcfextsexec while using a...

Huawei EulerOS: Security Advisory for kernel (EulerOS-SA-2023-1551)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CBL Mariner 2.0 Security Update: hyperv-daemons / kernel (CVE-2022-47929)

The version of hyperv-daemons / kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-47929 advisory. - In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control...

Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2023-12196)

The remote Oracle Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2023-12196 advisory. - l2tp: Serialize access to skuserdata with skcallbacklock Jakub Sitnicki Orabug: 34951574 CVE-2022-4129 - wifi: rndiswlan: Prevent buffer overflo...

kernel: net: CPU soft lockup in TC mirred egress-to-ingress action

A flaw was found in the Linux kernel Traffic Control TC subsystem. Using a specific networking configuration redirecting egress packets to ingress using TC action "mirred" a local unprivileged user could trigger a CPU soft lockup ABBA deadlock when the transport protocol in use TCP or SCTP does a...