CVE-2020-12465

Severity: medium (CVSS 6.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2020-04-29 · updated 2026-06-17
Weakness: CWE-120

Description

An array overflow was discovered in mt76_add_fragment in drivers/net/wireless/mediatek/mt76/dma.c in the Linux kernel before 5.5.10, aka CID-b102f0c522cf. An oversized packet with too many rx fragments can corrupt memory of adjacent pages.

Affected products

Linux kernel: from 4.16 before 4.19.111; from 4.20 before 5.4.26; from 5.5 before 5.5.10 — fixed in 4.19.111, 5.4.26, 5.5.10
Active IQ Unified Manager for VMware vSphere, Linux, and Microsoft Windows: all versions
NetApp Aff Baseboard Management Controller: a700s
NetApp Cloud Backup: all versions
NetApp Hci Baseboard Management Controller: h300s, h410c, h410s, h500s, h610c, h610s (+2)
NetApp Hci Compute Node: all versions
NetApp Solidfire & Hci Management Node: all versions
NetApp Solidfire Baseboard Management Controller: all versions
NetApp Steelstore Cloud Integrated Storage: all versions

How to fix

Upgrade to a fixed version: Linux kernel 4.19.111, 5.4.26, 5.5.10. Check the vendor advisory for mitigations.

References

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