CVE-2021-29154

kernel: Local privilege escalation due to incorrect BPF JIT branch displacement computation

Published Apr 8, 2021 CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
Description
BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them to execute arbitrary code within the kernel context. This affects arch/x86/net/bpf_jit_comp.c and arch/x86/net/bpf_jit_comp32.c.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-2689-1 linux security update
Debian DLA Debian DLA DLA-2690-1 linux-4.19 security update
Ubuntu USN Ubuntu USN USN-4912-1 Linux kernel (OEM) vulnerabilities
Ubuntu USN Ubuntu USN USN-4916-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-4917-1 Linux kernel vulnerabilities
History
Type Values Removed Values Added
Metrics epss

{'score': 0.0004}

epss

{'score': 0.00041}