CVE-2023-4623

A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve i.e. with the HFSCFSC flag set has a parent without a link-sharing curve, then initvf will call...

UBUNTU-CVE-2023-4623

A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve i.e. with the HFSCFSC flag set has a parent without a link-sharing curve, then initvf will call...

CVE-2023-4623

A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve i.e. with the HFSCFSC flag set has a parent without a link-sharing curve, then initvf will call...

Design/Logic Flaw

A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve i.e. with the HFSCFSC flag set has a parent without a link-sharing curve, then initvf will call...

CVE-2023-4623 Use-after-free in Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component

A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve i.e. with the HFSCFSC flag set has a parent without a link-sharing curve, then initvf will call...

CVE-2023-4623 Use-after-free in Linux kernel's net/sched: sch_hfsc (HFSC qdisc traffic control) component

A use-after-free vulnerability in the Linux kernel's net/sched: schhfsc HFSC qdisc traffic control component can be exploited to achieve local privilege escalation. If a class with a link-sharing curve i.e. with the HFSCFSC flag set has a parent without a link-sharing curve, then initvf will call...

kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter

A use-after-free vulnerability was found in the traffic control index filter tcindex in the Linux kernel. The tcindexdelete does not properly deactivate filters, which can later lead to double freeing the structure. This flaw allows a local attacker to cause a use-after-free problem, leading to...

kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter

A use-after-free vulnerability was found in the traffic control index filter tcindex in the Linux kernel. The tcindexdelete does not properly deactivate filters, which can later lead to double freeing the structure. This flaw allows a local attacker to cause a use-after-free problem, leading to...

USN-6337-1: Linux kernel (Azure) vulnerabilities

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service infinite recursion. CVE-2020-36691 Billy Jheng Bing Jhong discovered that the CIFS network...

Ubuntu 18.04 ESM : Linux kernel (Azure) vulnerabilities (USN-6337-1)

The remote Ubuntu 18.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6337-1 advisory. It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An...

USN-6332-1 linux-azure, linux-azure-5.15, linux-azure-fde vulnerabilities

Daniel Moghimi discovered that some IntelR Processors did not properly clear microarchitectural state after speculative execution of various instructions. A local unprivileged user could use this to obtain to sensitive information. CVE-2022-40982 William Zhao discovered that the Traffic Control T...

USN-6331-1 linux-azure vulnerabilities

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service infinite recursion. CVE-2020-36691 Billy Jheng Bing Jhong discovered that the CIFS network...

USN-6331-1: Linux kernel (Azure) vulnerabilities

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service infinite recursion. CVE-2020-36691 Billy Jheng Bing Jhong discovered that the CIFS network...

RHEL 8 : kpatch-patch (RHSA-2023:4888)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:4888 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...

kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter

A use-after-free vulnerability was found in the traffic control index filter tcindex in the Linux kernel. The tcindexdelete does not properly deactivate filters, which can later lead to double freeing the structure. This flaw allows a local attacker to cause a use-after-free problem, leading to...

USN-6314-1 linux-bluefield, linux-ibm vulnerabilities

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service infinite recursion. CVE-2020-36691 Billy Jheng Bing Jhong discovered that the CIFS network...

USN-6314-1: Linux kernel vulnerabilities

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service infinite recursion. CVE-2020-36691 Billy Jheng Bing Jhong discovered that the CIFS network...

kernel: Use-after-free vulnerability in the Linux Kernel traffic control index filter

A use-after-free vulnerability was found in the traffic control index filter tcindex in the Linux kernel. The tcindexdelete does not properly deactivate filters, which can later lead to double freeing the structure. This flaw allows a local attacker to cause a use-after-free problem, leading to...

USN-6312-1 linux-gke, linux-ibm-5.4 vulnerabilities

It was discovered that the netlink implementation in the Linux kernel did not properly validate policies when parsing attributes in some situations. An attacker could use this to cause a denial of service infinite recursion. CVE-2020-36691 Billy Jheng Bing Jhong discovered that the CIFS network...

USN-6311-1 linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-gkeop, linux-gkeop-5.15 vulnerabilities

William Zhao discovered that the Traffic Control TC subsystem in the Linux kernel did not properly handle network packet retransmission in certain situations. A local attacker could use this to cause a denial of service kernel deadlock. CVE-2022-4269 It was discovered that the NTFS file system...