ALAS2KERNEL-5.4-2022-003 --- kernelID: oval:org.secpod.oval:def:1700822 | Date: (C)2022-02-01 (M)2024-04-17 |
Class: PATCH | Family: unix |
A use-after-free flaw was found in the Linux kernel's NFC LLCP protocol implementation in the way the user performs manipulation with an unknown input for the llcp_sock_bind function. This flaw allows a local user to crash or escalate their privileges on the system. A use-after-free flaw was found in the Linux kernel's NFC LLCP protocol implementation in the way the user triggers the llcp_sock_connect function. This flaw allows a local user to crash the system. A memory leak in the Linux kernel's NFC LLCP protocol implementation was found in the way a user triggers the llcp_sock_connect function. This flaw allows a local user to starve the resources, causing a denial of service. A vulnerability was found in Linux kernel where non-blocking socket in llcp_sock_connect leads to leak and eventually hanging-up the system. A use-after-free flaw was found in the Linux kernel's SCTP socket functionality that triggers a race condition. This flaw allows a local user to escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. A flaw was found in the Linux kernels eBPF implementation. By default, accessing the eBPF verifier is only accessible to privileged users with CAP_SYS_ADMIN. A local user with the ability to insert eBPF instructions can abuse a flaw in eBPF to corrupt memory. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability. A vulnerability was discovered in retrieve_ptr_limit in kernel/bpf/verifier.c in the Linux kernel mechanism to mitigate speculatively out-of-bounds loads . In this flaw a local, special user privileged BPF program running on affected systems may bypass the protection, and execute speculatively out-of-bounds loads from the kernel memory. This can be abused to extract contents of kernel memory via side-channel. A flaw was found in the Linux kernel's eBPF verification code. By default, accessing the eBPF verifier is only accessible to privileged users with CAP_SYS_ADMIN. This flaw allows a local user who can insert eBPF instructions, to use the eBPF verifier to abuse a spectre-like flaw and infer all system memory. The highest threat from this vulnerability is to confidentiality
Product: |
kernel |
perf |
python-perf |
bpftool |