CVE-2023-2163

An incorrect verifier pruning flaw was found in BPF in the Linux Kernel that may lead to unsafe code paths incorrectly marked as safe, resulting in arbitrary read/writes in kernel memory, lateral privilege escalation, and container escape. Mitigation The default Red Hat Enterprise Linux kernel...

AZL-29941 CVE-2023-2163 affecting package kernel for versions less than 5.15.133.1-1

Incorrect verifier pruning in BPF in Linux Kernel =5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape...

DEBIAN-CVE-2023-2163

Incorrect verifier pruning in BPF in Linux Kernel =5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape...

Privilege escalation

Incorrect verifier pruning in BPF in Linux Kernel =5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape...

CVE-2023-2163

Incorrect verifier pruning in BPF in Linux Kernel =5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape...

CVE-2023-2163

Summary of CVE-2023-2163 : The issue is an incorrect verifier pruning in the kernel’s BPF verifier for Linux kernel versions >= 5.4, where unsafe code paths can be marked safe, enabling arbitrary reads/writes in kernel memory, lateral privilege escalation, and container escapes. Connected advi...

USN-6385-1: Linux kernel (OEM) vulnerabilities

It was discovered that some AMD x86-64 processors with SMT enabled could speculatively execute instructions using a return address from a sibling thread. A local attacker could possibly use this to expose sensitive information. CVE-2022-27672 William Zhao discovered that the Traffic Control TC...

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....

kernel: seccomp: Move copy_seccomp() to no failure path

A memory leak flaw was found in the Linux kernel's seccomp subsystem. When a process using seccomp filters is interrupted by a fatal signal during clone, the seccompfilter structure and associated BPF program memory are not properly freed. This occurs because copyseccomp is called before the...

USN-6357-1 linux-ibm, linux-ibm-5.4 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 Ruihan Li discovered that the bluetooth subsystem ...

Ubuntu 18.04 ESM / 20.04 LTS : Linux kernel (IBM) vulnerabilities (USN-6357-1)

The remote Ubuntu 18.04 ESM / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6357-1 advisory. Daniel Moghimi discovered that some IntelR Processors did not properly clear microarchitectural state after speculative execution of various...

USN-6340-2: Linux kernel vulnerabilities

Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service bluetooth communication. CVE-2023-2002 Zi Fan Tan discovered that the binder IPC...

USN-6349-1 linux-azure vulnerabilities

Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service bluetooth communication. CVE-2023-2002 Zi Fan Tan discovered that the binder IPC...

USN-6349-1: Linux kernel (Azure) vulnerabilities

Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service bluetooth communication. CVE-2023-2002 Zi Fan Tan discovered that the binder IPC...

USN-6347-1: Linux kernel (Azure CVM) 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...

Amazon Linux 2 : kernel (ALASKERNEL-5.15-2023-023)

The version of kernel installed on the remote host is prior to 5.15.43-20.103. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2023-023 advisory. 2024-03-13: CVE-2022-48619 was added to this advisory. 2023-10-12: CVE-2021-3923 was added to this advisor...

Ubuntu 20.04 LTS : Linux kernel (Azure) vulnerabilities (USN-6349-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6349-1 advisory. Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically...

USN-6340-1 linux, linux-aws, linux-aws-5.4, linux-gcp, linux-hwe-5.4, linux-iot, linux-kvm, linux-oracle, linux-oracle-5.4 vulnerabilities

Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. A physically proximate attacker could use this to cause a denial of service bluetooth communication. CVE-2023-2002 Zi Fan Tan discovered that the binder IPC...

Ubuntu 18.04 ESM / 20.04 LTS : Linux kernel vulnerabilities (USN-6340-1)

The remote Ubuntu 18.04 ESM / 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6340-1 advisory. Ruihan Li discovered that the bluetooth subsystem in the Linux kernel did not properly perform permissions checks when handling HCI sockets. ...

CLSA-2023-1693827560 Fix of 9 CVEs

Jammy update: v5.15.86 upstream stable release LP: 2005113 // CVE-url: https://ubuntu.com/security/CVE-2022-3606 - libbpf: Fix null-pointer dereference in findprogbysecinsn Jammy update: v5.15.87 upstream stable release LP: 2007441 // CVE-url: https://ubuntu.com/security/CVE-2023-23454 - net:...