title: Arbitrary Memory read in BPF Linux Kernel
description: There exists an arbitrary memory read within the Linux Kernel BPF - Constants provided to fill pointers in structs passed in to bpf_sys_bpf are not verified and can point anywhere, including memory not owned by BPF. An attacker with CAP_BPF can arbitrarily read memory from anywhere on the system. We recommend upgrading past commit 86f44fcec22c
problem types: CWE-125 Out-of-bounds Read
affected:
{
product: Kernel
vendor: Linux Kernel
versions:
lessThan: af2ac3e13e45, status: affected, version: 5.14, versionType: custom
lessThan: b1d18a7574d0, status: affected, version: 5.18, versionType: custom
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: LOCAL
availabilityImpact: HIGH
baseScore: 6.7
baseSeverity: MEDIUM
confidentialityImpact: HIGH
integrityImpact: HIGH
privilegesRequired: HIGH
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
version: 3.1
]