PT-2025-25905 · Linux +1 · Linux Kernel +1

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 5.18.0 Description: A refcount bug in the Linux kernel has been resolved. The issue occurs during the SMC fallback process in the connect syscall, where the kernel replaces TCP with SMC and sets the clcsk-sk use...

CVE-2023-0045

The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ibprctlset function updates the Thread Information Flags TIFs for the task and updates the SPECCTRL MSR on the function speculationctrlupdate, but the IBPB is only issued on the next...

CVE-2023-0045

The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ibprctlset function updates the Thread Information Flags TIFs for the task and updates the SPECCTRL MSR on the function speculationctrlupdate, but the IBPB is only issued on the next...

DEBIAN-CVE-2023-0045

The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ibprctlset function updates the Thread Information Flags TIFs for the task and updates the SPECCTRL MSR on the function speculationctrlupdate, but the IBPB is only issued on the next...

Code injection

The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ibprctlset function updates the Thread Information Flags TIFs for the task and updates the SPECCTRL MSR on the function speculationctrlupdate, but the IBPB is only issued on the next...

CVE-2023-0045

The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ibprctlset function updates the Thread Information Flags TIFs for the task and updates the SPECCTRL MSR on the function speculationctrlupdate, but the IBPB is only issued on the next...

CVE-2023-0045 Incorrect indirect branch prediction barrier in the Linux Kernel

The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ibprctlset function updates the Thread Information Flags TIFs for the task and updates the SPECCTRL MSR on the function speculationctrlupdate, but the IBPB is only issued on the next...

CVE-2023-0045 Incorrect indirect branch prediction barrier in the Linux Kernel

The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ibprctlset function updates the Thread Information Flags TIFs for the task and updates the SPECCTRL MSR on the function speculationctrlupdate, but the IBPB is only issued on the next...

CVE-2023-0045

The CVE-2023-0045 entry concerns the Linux kernel Spectre v2 mitigation for prctl-based task toggling. The underlying issue is that IBPB is not issued immediately during the prctl syscall; ib_prctl_set updates TIFs and SPEC_CTRL MSR, but IBPB is only emitted on the next schedule after TIF checks....

IBM Corporation AIX errlog() Log Injection Vulnerability

Talos Vulnerability Report TALOS-2023-1690 IBM Corporation AIX errlog Log Injection Vulnerability April 24, 2023 CVE Number None,CVE-2023-26286 SUMMARY An OS command injection vulnerability exists in the errlog syscall functionality of IBM Corporation AIX 7.2. A specially crafted syscall can lead...

USN-6030-1: Linux kernel (Qualcomm Snapdragon) vulnerabilities

It was discovered that the Traffic-Control Index TCINDEX implementation in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code. CVE-2023-1281 It was discovered that the System V IPC...

Ubuntu 16.04 ESM : Linux kernel (GCP) vulnerabilities (USN-6009-1)

The remote Ubuntu 16.04 ESM host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6009-1 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...

USN-6009-1 linux-gcp vulnerabilities

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 this to cause a denial of service memory exhaustion. CVE-2021-3669 It was discovered that a use-after-free vulnerability existed in the SGI GRU...

USN-6004-1: Linux kernel (Intel IoTG) vulnerabilities

It was discovered that the KVM VMX implementation in the Linux kernel did not properly handle indirect branch prediction isolation between L1 and L2 VMs. An attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. CVE-2022-2196 It was discovered...

Fedora 36 : xen (2023-04b5338dd0)

The remote Fedora 36 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2023-04b5338dd0 advisory. 3 security issues 2180425 x86 shadow plus log-dirty mode use-after-free XSA-427, CVE-2022-42332 x86/HVM pinned cache attributes mis-handling XSA-428...

Fedora 36 : golang (2023-7442702a7d)

The remote Fedora 36 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2023-7442702a7d advisory. go1.19.7 released 2023-03-07 includes a security fix to the crypto/elliptic package, as well as bug fixes to the linker, the runtime, and the crypto/x509 and...

Linux/x86_64 - bash Shellcode with xor encoding Shellcode (71 bytes)

Exploit Title: Linux/x8664 - bash shellcode with xor encoding Date: 05/02/2023 Exploit Author: Jeenika Anadani Contact: https://twitter.com/cyberjeeni Category: Shellcode Architectue: Linux x8664 Shellcode Length: 71 Bytes ----------------------- section .data section .text global start start: ;...

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-5987-1)

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-5987-1 advisory. It was discovered that the KVM VMX implementation in the Linux kernel did not properly handle indirect branch prediction isolation between L1...

Fedora 38 : golang (2023-8ee7d4a8e3)

The remote Fedora 38 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2023-8ee7d4a8e3 advisory. go1.20.2 released 2023-03-07 includes a security fix to the crypto/elliptic package, as well as bug fixes to the compiler, the covdata command, the linker, t...

Fedora 37 : golang (2023-dc0a020a2e)

The remote Fedora 37 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2023-dc0a020a2e advisory. go1.19.7 released 2023-03-07 includes a security fix to the crypto/elliptic package, as well as bug fixes to the linker, the runtime, and the crypto/x509 and...