PT-2023-6554 · Linux +9 · Linux Kernel +9

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A heap out-of-bounds write vulnerability in the Linux kernel's Linux Kernel Performance Events perf component can be exploited to achieve local privilege escalation. If perf read group...

Rocky Linux 8 : kernel-rt (RLSA-2023:4541)

The remote Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2023:4541 advisory. - There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2capcore.c's l2capconnect and l2capleconnectreq functions which may allo...

Important: Red Hat Security Advisory: kernel security, bug fix, and enhancement update

An update for kernel is now available for Red Hat Enterprise Linux 8.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

Ubuntu 22.04 LTS : Linux kernel (OEM) vulnerabilities (USN-6385-1)

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6385-1 advisory. It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread....

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-6311-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6311-1 advisory. William Zhao discovered that the Traffic Control TC subsystem in the Linux kernel did not properly handle network packet retransmission in...

kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events

The Linux kernel's Performance Events subsystem has a use-after-free flaw that occurs when a user triggers the perfgroupdetach and removeonexec functions simultaneously. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events

The Linux kernel's Performance Events subsystem has a use-after-free flaw that occurs when a user triggers the perfgroupdetach and removeonexec functions simultaneously. This flaw allows a local user to crash or potentially escalate their privileges on the system...

Important: Red Hat Security Advisory: kernel-rt security and bug fix update

An update for kernel-rt is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

RHEL 8 : kernel-rt (RHSA-2023:4541)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2023:4541 advisory. The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirement...

SUSE SLES15 Security Update : kernel (Live Patch 3 for SLE 15 SP4) (SUSE-SU-2023:3063-1)

The remote SUSE Linux SLES15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2023:3063-1 advisory. This update for the Linux Kernel 5.14.21-1504002421 fixes several issues. The following security issues were fixed: - CVE-2023-35788: Fixed an...

Important: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 9.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events

The Linux kernel's Performance Events subsystem has a use-after-free flaw that occurs when a user triggers the perfgroupdetach and removeonexec functions simultaneously. This flaw allows a local user to crash or potentially escalate their privileges on the system...

PT-2025-40746

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue in the RISC-V PMU driver. Specifically, the driver doesn't update the PERF HES STOPPED flag after a perf event overflow function call, nor does it...

kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events

The Linux kernel's Performance Events subsystem has a use-after-free flaw that occurs when a user triggers the perfgroupdetach and removeonexec functions simultaneously. This flaw allows a local user to crash or potentially escalate their privileges on the system...

kernel: use-after-free vulnerability in the perf_group_detach function of the Linux Kernel Performance Events

The Linux kernel's Performance Events subsystem has a use-after-free flaw that occurs when a user triggers the perfgroupdetach and removeonexec functions simultaneously. This flaw allows a local user to crash or potentially escalate their privileges on the system...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ext4: block range must be validated before use in ext4mbclearbb CVE-2022-50021 A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation. T...

Use-after-free in Linux kernel's Performance Events subsystem

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CVE-2023-2235

The Linux kernel's Performance Events subsystem has a use-after-free flaw that occurs when a user triggers the perfgroupdetach and removeonexec functions simultaneously. This flaw allows a local user to crash or potentially escalate their privileges on the system...

AZL-26389 CVE-2023-2235 affecting package kernel for versions less than 5.15.111.1-1

A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation. The perfgroupdetach function did not check the event's siblings' attachstate before calling addeventtogroups, but removeonexec made it possible to call listdelevent...

CVE-2023-2235

A use-after-free vulnerability in the Linux Kernel Performance Events system can be exploited to achieve local privilege escalation. The perfgroupdetach function did not check the event's siblings' attachstate before calling addeventtogroups, but removeonexec made it possible to call listdelevent...