CVE-2021-20320

MEDIUM

5.5

Description

A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with special user privilege can circumvent the verifier and may lead to a confidentiality problem.

CVE Details

CVSS v3.1 Score5.5

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published2/18/2022

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

fedoraproject:fedoralinux:linux_kernelredhat:enterprise_linux

Weaknesses (CWE)

CWE-200

References

https://bugzilla.redhat.com/show_bug.cgi?id=2010090(secalert@redhat.com)

https://lore.kernel.org/bpf/20210902185229.1840281-1-johan.almbladh%40anyfinetworks.com/(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2010090(af854a3a-2127-422b-91ae-364da2661108)

https://lore.kernel.org/bpf/20210902185229.1840281-1-johan.almbladh%40anyfinetworks.com/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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