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5.5
CVSSv3

CVE-2021-20320

Published: 18/02/2022 Updated: 07/11/2023
CVSS v2 Base Score: 2.1 | Impact Score: 2.9 | Exploitability Score: 3.9
CVSS v3 Base Score: 5.5 | Impact Score: 3.6 | Exploitability Score: 1.8
VMScore: 187
Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N
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Vulnerability Summary

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.

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linux linux kernel 5.15

linux linux kernel

fedoraproject fedora 34

redhat enterprise linux 7.0

redhat enterprise linux 8.0

Vendor Advisories

Red Hat: CVE-2021-20320
No description is available for this CVE ...

References

NVD-CWE-Otherhttps://bugzilla.redhat.com/show_bug.cgi?id=2010090https://lore.kernel.org/bpf/20210902185229.1840281-1-johan.almbladh%40anyfinetworks.com/https://nvd.nist.govhttps://access.redhat.com/security/cve/cve-2021-20320
CVSSv3
CVSSv2
CVSSv3
VMScore
Recommendations:
CVE-2023-21991CVE-2024-32674path traversalCVE-2023-21987denial of servicedosCVE-2024-4647CVE-2024-25519CVE-2024-33612
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